I had to watch your explanation twice when you used the word Etcetera. You were the only person that I have seen in years that pronounced it correctly. Most people get it wrong by saying excetra. You have revived my faith in mankind. But honestly. I have tried most all of your hum fixes , to no avail. I have even trouble shot my homes ground at the electrical pedestal outside my house. I think my home has a bad ground problem. But I am going to replace my turntables cartridge first and see if that fixes anything. Thanks for your advice and keep up the good work.
Thanks Brian! I usually mispronounce words because I am mainly Italian, which is probably why I got the Latin word correctly ;-) Sorry to hear nothing worked for the hum.
I had an annoying, intermittent buzzing. My mini PC and preamp/receiver were on the same power strip. I moved the pc power to another power outlet and that solved the problem. I’m glad you mentioned a PC second. Good tips.
Tutte le volte che vedo i tuoi video mi viene da invitarti a guadarmi l’impianto, fare test accennare tutto che va e non va bene, fare un video del prima de dopo un upgrade. Infatti ho già migliorato un sacco di cose nel mio impianto da che seguo i tuoi video. Ho un impianto completamente composto da pezzi trovati al mercatino dell’antiquariato di Pescia. Grazie di tutte le info!
I hear this faint noise every time I’m cranking up the system and as I finally turn the system down there is this screaming voice saying TURN IT DOWN! How do I fix this issue.
Does it go away if you turn it back up? I get knocks through my floor when I crank mine up, it doesn't seem to happen through my headphones which is odd - or if downstairs are out. I'm sure there is a common link here.....
@@QoraxAudio However if the beep is accompanied by flashing blue and red lights, you may have a serious system fault that requires involuntarily heading to the local precinct to rectify it.
Terrific very straight forward tutorial regarding hums and load noise. Was hoping to also see examples included of stand alone cassette and 8-track decks I have a stand alone quality Panasonic 8-track player/recorder that produces a load hum/noise when a tape is inserted and volume adjusted on the deck. Any ideas how to eliminate this will be greatly appreciated!
In my opinion, the turntable connected to the amplifier without a 3th cable connecting the ground from the recordplayer to the ground of the amplifier, is the MAIN reason for hum.
@, Maybe you have a point there, but I live in a new home with correct electrical installation. I had hum while using the turntable. It disappeared once the ground was connected.
4:00 Worth noting that if the equipment DOES NOT have a ground pin (e.g. two-pin plug), then its not likely an issue. With only live and neutral, there wont be any path for the ground loop unless there is a fault (or a deathtrap designed in China and they tied the neutral to the enclosure). Amplifiers that only have two pin plugs will have input/output stages that are floating, and should not have issues with hum from ground loops unless you inadvertently ground something you shouldn't. In that case there is more likely a power supply fault in the amp itself if it persists with no inputs. The same applies to your TV set. If its only got two pins, it cant cause ground loops. PCs and laptops are different as they must have a grounded enclosure to prevent the case from becoming live at mains voltage should the SMPS fail or suffer a breakdown in isolation. But generally, only your equipment that has a three prong plug can be a source of ground loops. Need the ground, of course! So concentrate there first before going further. And you can check if its a broken ground by simply using a multimeter set to continuity. Check from the ground pin to a bare exposed metal part of the enclosure and ensure there is continuity. If not, the ground pin or the ground connection is not connected, and should be fixed at once.
The same applies if you live in an old building that doesn't have ground on any sockets except for bathroom ones. But there is still capacitive coupling either in the transformer or a little capacitor added on purpose to help with RF interference. This may still couple more to one prong than the other, so rotating the plugs may help even without ground. But it is more likely to be bad audio cables then.
Thanks to your advice I could find the root cause of the hum in my system. I have a Pioneer AV Receiver with Pioneer Multiplayer and small TV as monitor plus a separate Power AMP for a passive subwoofer. Whenever I used the subwoofer with the external amp there was a basic hum only coming from the woofer which I could not track where it derived from. With your help I identified the TV as the source. If it was switched off, the hum disappeared. But I Had problems to get rid of the hum! Neither different interconnect cables nor use of other sockets helped. Then, trying out different adjustments in the TV menue I found the solution. I had to disable the economy mode of the TV which switches it off after a certain time without signal. This was sheer luck to find this out! Maybe someone with the same problem should also have a look at this.
Great tips. I was having issue with my power cables. So i took an old vacuum cleaner hose. Cut with metal snips along the length. Placed all unshielded power cables inside. The metal rings along the length make a great shield plus it works great helping keep cables organized.
This was such an excellent vid. Man, do I hate hum! Luckily, my system is dead quiet now, but I’m sure you helped many people resolve their hum problems! I’ve heard that ferrite beads can help reduce hum when placed in certain places on cables, but I’ve never tried it. Also, I love Grado cartridges, but they can cause a lot of hum when they get too close to a transformer. If a lead wire on your headshell is loose or broken, that can cause a super loud hum, even a loud buzzing noise . I now use only high quality lead wires, mostly Jelco or Ortofon made with litz copper. Again, great vid. Thanks! I’m very glad you really addressed the hum issue. 🎶🔊🙂
I have behringer 1000watt active speakers and a passive 15 step graphic equaliser a djs CD player and a digital radio tuner the output of the graphic equiliser has an intermittent hum from the right channel tapping the output cable stops the hum yet on a meter there is nothing wrong with the continuity of the leads, I'm wondering if I should earth each separates casing to each other to stop the hum.
Salve, ANA/DIA/LOG : ancora una volta ci rendi partecipi della tua enorme Conoscenza in tema di Hi-Fi, con un’ Opera meritoria nei riguardi di noi tutti Amatori della riproduzione Musicale High Fidelity.- Poiché non è da tutti il divulgare Nozioni, con la facile e comprensibile tua esposizione, di una Materia che talvolta appare complessa.- Mi permetto quindi di classificarti a nome di Noi tutti, quale Personaggio di rare tue virtù e, credimi, di Uomini quale sei tu, ne nasce uno o forse due nell’arco di un Secolo.- : Aldo di Verona, 6/6/2020, anno Domini, ore 9:18.-
Hi...what an informativ vd :-) This is a HUGE problem for almost everyone, and any Audiophile has tried that on their journey. The types of hum is really important to nail, so your starting point is valid. From here you can focus on the source causing these problems, and i guess many of us have experienced a phono stage with crazy annoying hum :-( So thx for taking up the task ;-) Cheers from Denmark
I have 60hz hum and the main culprit is my rca interconnect cables. I dont know how to get the hum out of my system. Any help would be much appreciated.
@@ArthaxtaDaVince777 First you need to check your grounding? Next you need to check the cables u are using for the unit? Better, check every cable in your system for defects? Also the arm cables (turntable) needs checking, before deciding anything? With Rega decks and phono stages, iv'e came across the hum issue several times, and it has often to do where you live in the world? Some experience no hum, where others experience hum with the same system (or similar). Hope you get it fixed?
Thanks! I had a phono ground hum when I first hooked up a Mani phono preamp. All I did was disconnect the ground and reconnected it and hum was gone. Seems the connection was better when the “U” shaped connecter bottom was slightly away from the screw post. Ie the sides of the “U” connecter nicely secured got rid of the hum.😀
Another important topic with very little practical advice (except here !). One common problem (that I had) was ground loop caused by using multiple AC lines combined with my own DIY audio projects. Basically, I just had too many "three prong" devices plugged into different outlets. One decent solution is to use a "ground lift circuit" at the point where you find the source of the hum. I was able to add this and switch it in/out. (DIY-techie stuff: the circuit is just a 10ohm (2-5 watt) resistor and a .1uf (200+ vdc) capacitor in parallel. It sits between your ground wire and your AC earth ground point. It's safer than a "cheater" plug, but you need to build it.) Many people feel "ground lift" is dangerous. True..if you have NO ground point to begin with. However, the fact that you have ground loop noise probably means that your system has multiple (non-star) ground points. This is a NO-NO for a high quality audio system. Oh..if your are using a turntable...The cartridge cable MUST be grounded to the phono-pre-amp which in turn SHOULD be grounded to the main-pre-amp (or input selector amp). Many pre-amps have a ground lug for this purpose. In addition the pre-amp (or input selector amp) should be the "star" of all the grounded components. Like they say in Italy.."All roads lead to Rome..." One of the earliest practical examples of "star" topology.
I have this problem but it is intermittent.I will just happen with no warning.I have noticed if i just barely touch the interconnect cable it stops.I have checked the cable on another amp and can't find any shorts.The buzz is there even if I turn the volume all the way down.
I have had a lot of noise coming from my Benz Micro Glider SL, probably because it’s a low output MC. I found that changing the phono preamp input resistance helped *a lot*.
Quick note on the 50/60 Hz. The 50 or 60 Hz itself is not so much the issue. The real issue is the harmonics you get after the mains is rectified by the power supply. The harmonic overtones (e.g. for 60 Hz: 120 Hz, 240 Hz, etc.) are whats most bothersome. Thats what gives it that "buzzy" quality to both the 60/120 Hz tones. If only 50 or 60 Hz was present, it would be hard to notice, and commonly the pure fundamental is often present in very small amounts in most equipment due to magnetic coupling. Some of it can be helped by adding a snubber network on the secondary of the mains transformers if your equipment uses it in lieu of an SMPS. It will help eliminate the sharp pulses from the rectifiers cutting off after the bulk capacitors have charged. This will help remove the higher order harmonics if you cant sufficiently isolate the grounds.
You mentioned it very briefly at the 6.08 mark:cable TV isolator. I tried everything to include an expensive surge suppressor/sound conditioner to eliminate the hum in my speakers. Nothing made a dent. A simple cable TV isolator did the trick. Bought off eBay or Amazon-can’t remember.
I bought my TV isolator after my USB TV tuner blew up when I connected both it and a charger to my laptop. You could feel the electricity making your muscles move when touching both connectors. Cable TV usually comes from a different building. And buildings far apart can have ground at different potentials because of both ground resistance and the power lines carrying AC being out of phase between two separate points along the way. That's why all devices with RJ-45 Ethernet sockets have little isolation transformers in them, sometimes even inside the socket itself. Because that standard was actually designed with transmission between buildings in mind.
The legend says: The hum you are hearing is the analog soul... trying to communicate with selected users, chosen by the analog world which exists in another dimension.
Hi! I just got a svs sb- 1000 pro subwoofer, connected through speakers level (vintage pioneer c-73 power amp with no sub out) and I got a hum in the sub when everything is turned off. Once I turn on the power amp and the pre-amp (m-73) the hum is gone. What I did notice is that if I take out the ethernet cable from the node x streamer/dac, the humming is almost gone. Still can’t figure it out. The ethernet socket in the wall is close to the power socket. And I do have quite long speaker cables that I use for the subwoofer, even if the sub is close to the power amp. I can cut them if necessary. But I’m not sure if this is causing the hum.
I got mains him which persisted after changing DAC, interconnects, power leads, plug sockets and power strips. The only thing which made it go away was moving the DAC to the other side of the amp. Any idea why? It’s as close to the amps as before. This makes no sense to me 🤷🏻♂️
Hey DIA, thanks for the interesting set of tips. If I remember correctly, you're actually one of the main reasons I've recently started learning about cable ingredients and wanting to build make my own designs that have the purpose I intend for them. I saw a video of you about three or so month ago, you were whispering to the camera as if you were sharing these hidden secrets that the audiophile world didn't want us to know about. Not that those "secrets" were necessarily useful to me in my situation at the time, but you alone gave me the mentality that this particular part of the audio world wasn't just about spending money, there was a completely different route to go down. This route involves a lot more learning, more heart, and the ability to really put yourself into the passion.
I get some 'hum' or buzzing from my amplifier, due to other gadgets such as Computers ect. As long as my initial signal chain isn't close to those 'noise makers' it won't affect the audio directly.. (as is proven by simply dumping it via firewire to the computer) - but monitoring that same audio can have noise in from said interference. Tends to be components that suffer some sort of noise / distortion / hum.. as long as your signal chain from the source is clear and you can prove this , it's then easy to target where hum is coming from. This is of course aside from broken components (bad capacitors ect) One thing to keep in mind as well, never keep your Cellphone near any signal chains - if you have to keep your phone near your gear, keep it on Airport mode or you WILL pick up distorted interference. Test this any time by putting a cellphone next to your headphone cables or a tape deck play head and you will hear it. It's the worst noise in the world.
I have some question. I was doing live band. Somehow I have hum noise coming from my sub. I have ground plug for each extension cord, but still get hum
That may be the problem. Try using the sub in a different power socket and see if it makes hum and so on for each component. Usually it's a ground loop that makes hum. Plugs with no ground don't hum.. but are dangerous.
Hi, I’m a subscriber. My class A amp, (adcom gfa5802) just recently developed a slight buzzing hum on the left channel. Do you think the filter capacitors for the left channel are bad? I checked the DC voltage at the speaker terminals and they’re at 0.025V, so I think the coupling capacitors are fine. Or do you think it’s something else? Thanks in advance.
Hard to say but when the Humm is from only one channel it is most probably an inner fault. In any case try using a completely different plug for the amp and see if it changes. Also, try using a different amp if you can to exclude the loudspeaker.
I have a ground loop and hum with my gutar rack .i have axe effect 3,furman power conditioner,crown power amp in some venue i have no hum at all but when i play other venues i have high screeching noise and groud loop issues
I have a wonderful Mark Levinson amp with hum. I tested with a cheater plug and hum went away. So , at least, I know that the hum is from the house ground and not the amp. Thanks so much for your advice. I removed the cheater plug and will work on power conditioning.
Thank you . I have a separated pony box with one 20 amp breaker. The ground in this is an external ground copper rod 10 ft in the ground a a 14 gauge Teflon coated copper ground is solder to the rod and clapped with a copper clap. My 12 gauge home 3 wire run direct to a plug on my line conditioner. Only my Dual 1229 is a hum issue. CheersJohn
I have had this issue. The thing that helped was insulating the power cable ground on the plug side with electrical tape. The amp still has a ground connection through the RCA interconnectors to the DAC but the hum stopped. Is there another more elegant way to fix this?
I did note you said you couldn't answer all questions, but may be some other viewers have a suggestion. I only just noticed hum when I had turned my amp(200watts per channel) to 80% of maximum volume. The hum goes away when I touch the tone arm mount on the TT. At playing levels the hum is just not there. I don't have an earth connection on the TT the reason being it was serviced and upgraded by a well respected expert on that tone arm( SME 3009) I could add a ground wire however as the hum is only apparent at high vol I have decided I can live with it.... is that a good or bad idea? Edit: I found out what the problem is and it is unfix-able. The issue is not hum. The cartridge, tonearm in combination with the high gain of the amp have created a Radio receiver, with he result when the amp is turned to near maximum volume I am getting a badly tuned radio signal. I did some checking its not an uncommon problem
I dunno if you talked about this already but what should we do about tape pressure pads...lots of mine falling off and on 8 tracks actually disintegrating
Don’t forget Tube Gear can have Hum from a bad tube. I just upgraded my power tubes and found a hum on my right channel. I swapped tubes between channels and still had the hum on the right. So my problem was not the tubes. After more research I found a loose RCA jack on my vintage amp. After correcting the jact the hum disappeared. Moving the amps to install the tubes must have the catalyst to loosen the jack the last bit!
I’ve got synths going to my amp. But I’m getting him only from ones without 3 pin power chords. I’ve changed wall socket but that makes no difference. Any ideas? Could the power leads being only 2-way have some effect? If so, what is the solution?
I think I sorted it. I simply connected the synth outputs to different inputs on my preamp and it’s all sorted. Looks like a dodgy channel on my preamp. I’ve had problem with DACs connected to my preamp before. It’s a great preamp: Musical Fidelity a308cr.
There are most common issues with ground loop , power cables almost always causes that. you can just STICK insulating tape on the ground section on both sides of power strip. Ground loop noises WILL disappear.
@@gonzaljevic just stick insulating tape on ground part of the power strip where power cable gets in. cant send you pictures here. I HAD ground loop problems with my active monitors. So easy to do.
@@MarkoVlasicAudio Seems like this is a good idea. But I still don't understand it. Do I place the tape on the ground socket even though my cable has a ground wire? Is the purpose to close the ground socket in the outlet?
@@anadialog yea I tried with multiple cables, when I have a speaker connected and I touch of the the rca input grounds with my finger it make a pop so I’m thinking it has to do with the ground
I have a very noticeable subwoofer rumble while using my Technics SL-1200MK5 with a Nagaoka MP-200 cartridge, the amp is a Simaudio Moon ACE can any of the aforementioned intrusions in the signal be the culprit of this? it does a huge subwoofer movement even at quite passages, how can I eliminate this as I´m afraid it will damage my speakers? thanks.
I had hum problems with my headphone amp, but I couldn't understand who was the culprit between amp, DAC and PC, as removing any of this three solved the problem. What's even stranger is that the DAC doesn't even have ground on the plug! Anyway two things could solve the problem, the first was using a toslink optic fiber cable between PC and DAC, the other possibility was to remove ground from the headphone amp. I chose the second as using anything different from usb to connect the dac means that I can't control the volume from pc, so I need to use the remote or reach for the volume knob, but also audio quality seemed to suffer just a tiny bit (but it might have been just suggestion).
Had a hum on one channel, turned out that one of the several XLR balance cables that I use in my system was different than all others in that while all others had four wires for each channel this particular cable had only three.
I only hear the 50hz noise (i think this is this one that i hear) when i am not listening to music and i turn the volume very high at a level that i never reach when i listen to some music. I have never felt disturbed by this so do i still need to investigate more? Do you have any recommandation for quality preamp power cord without (as you always say) spending an arm and a leg? Thank you for the video.
Well, if doesn't bother you your lucky! Before getting a good power cord just try to change it with a new one, even just a simple bulk standard black power cord and see if it changes. With turntables things get complicated. It may be many other things. Check the turntable doc I linked in the video description it has loads of solutions to try!
Ounce again thank-you for your good advice, it is always much appreciated, grammar correction the correct word is sensitive not sensible. I own a pair of Sugden mono blocks amps one hummed 60hz sound so I changed the power cord and total silence Grazie mille.
Loud 60 hz buzz. It's a stereo receiver and it's definitely not the table. I tested the table on another input. Of course the signal was low but absolutely no hum. It's only when chords are connected to the phono input and that input is selected. When there are no chords attached to the phono input there is no hum. The cables are fine. I've put new rca in so it's not the chords And it hums whether the phonograph is on or even disconnected to the cables. No cables no hum on phono but the cables are tested good on other equipment. Is it a dead short and why no hum if no cables?
As far as turntable hum..i have tried 3 turntables..3 different amps and still have the problem in all configurations..so maybe there is a ground prlblem in the house..i dan't think it can be anything else..tried different cable..power boards..etc
My new system of Accuphase amp and Eversolo 8 streamer, the streamer is causing hum. Nice unit but obviously not perfect in its internals. I had some success by linking the amp chassis and the streamer chassis with a wire. Reduced minor hum to about 20% so I consider that a success. Next week will get a new Isotek power board to replace my Thor, and a Isotek power conditioner to clean up any DC in the AC. Already have upgraded Isotek power cords.
I'm waiting to my new powered studio monitors. I hope I don't have to watch this video after getting them. Great that you keep on doing these videos. mr. Finglish (Bäd English Recs)
Nice attempt to solve a very common problem, but it’s a minefield and I would like it if suggested a call to a local Hi-Fi retailer where the equipment was bought from for the safest and best advice if all else fails. If they are any good they will identify the trouble and fix it, like the did for my ground loop problem which had faulty tonearm cable. Keep the analogue faith✌️ (are those CD’s in the background?😁) By the way - the word is ‘sensitive’ not ‘sensible’ but as it’s not your 1st language 👍😁😂
For those whom are connecting a phono preamp to their computer, be aware of inbuilt into the motherboard sound cards as they can be crap. I has hum and ticking noises and then purchased a PCIE sound card and now no longer a problem. but be ware that the input khz rate can be low quality.
Rakuten amd Walmart.com have the top-rated Tripp Lite LS606M Power Conditioner for less than $90. Great reviews for hum elimination. over-voltage, etc.
As you refer to lamination rattle and not being able to address it. Actually it is in many cases not at all due to poor transformer design. Transformers are more or less sensitive to dc leakage in the ac line. Devices like LED lighting on dimmer switches or other devices plugged into same circuit can leak dc back into the lines and the transformers can hum or more like buzz. This is easy to fix actually. Many power strips feature dc leakage filters. Removing dc from the lines. And eliminating buzz from a transformer. Usually larger transformers can be sensitive to this. Even some of our products have buzzed. However it requires a significant amount of dc leakage to create this problem. Yet i have always been able to fix this issue with our customers. Often they have an older home with poor wiring, or sometimes it’s the devices plugged into the same circuit that causes this issue. A dc blocker is needed. Like these examples. www.ebay.com/itm/133114436839 Or Most common is this one emotiva.com/products/cmx-2 Does the job, removes dc offset and stops transformer hum. I should be clear. Most cases it’s something else leaking the dc which in turn causes the hum, and can damage some electronics long term. So should be addressed and dc offset should be removed. In some of our products we have large 100VA Otype transformers which are superb for audio yet can be sensitive to dc offset. But it’s less than a percent of customers who have experienced a hum. And all of them fixed with a device like I mentioned
If humm comes from electrick wiering/outlet/unstable power/bad grounding, UPS solves these. Also, if outlet/wiering is bad or something faulty on same line. Can end up Your equipment smoking, thats another thing UPS protects You from (atleast good one).
Emotiva CMX-2 is great for DC Offset Hum. Furman has the SS-6B for only $39.00 and www.ebtech.com has the HUMX for about $70.00. Both from Sweetwater.com
Greetings - I enjoy your channel - first time commenting. I've had my Technics 1200g for nearly a year. No hum issues, but I hear a very faint periodic "thump" once per revolution (happens whether 33 or 45 rpm - obviously more frequent with the latter speed). Inaudible when playing music (except for very quiet passages) but I can hear it between tracks. If the tonearm is cradled, I. don't hear this thump sound. I know this is a bit off-topic for a "hum" video but wanted to ask if you have any thoughts as to the root issue given your ownership of this same turntable. The only mod is a 3rd party mat. Cartridge is an Ortofon Cadenza Bronze. Thanks for any suggestions you may have!
Thank you for the reply. I've contacted Technics consumer support and asked for their assistance having this problem addressed. Although this sounds like a latent defect, I should still be under their factory warranty. In all other respects, I really love this turntable.
I had this after my decks have been standing. How I do it is to isolate the setup with fresh cables if it continues ? I get the screwdriver & stripy strip .
Oh man!!!! Don't get me started..fucking hum is driving me nutz with my new turntable!! I have tried so many things with zero success. At what point is it the turntable itself?? I feel like my hum is quieter than your 50 60 Hz example. Only happens when the cart hits the record..... Nothing threw the tube phono pre amp, it's super quite!!
I find nothing to help shitting hum , sandbox 4” of sand, sting on 1/2 5 squash balls on a 500 bench maple stand, my Dual has a 2 prone plug, my amp is on the second shelve. 18” below 2” of maple my turntable and my linear power . I will look at power cords and Switch my HiDiamond power plug in box.
If you got hum in your system just means it's enjoying the music but can't sing along😄 Well European connection it is a loop connection ring main, you don't want that in your mains the hi-fi has to be a dedicated line ideally and can be dedicated just depends how the setup is, a fridge or freezer can cause hum on the network if it's on that ring main or air conditioner. Ideally on every power cord a safety cap film polypropylene capacitor of 0.22uF at 275v across the live and neutral terminal this can be dangerous and you have exposed wires!! this should be done at the socket behind behind the Wal,l or in a strip each connector to each plug individually. They consumer unit can get noisy MCB or RCD producers noise ideally replace it with a fuse if a 20 amps mcb use 15 amp fuse wire.
I believe my hum is coming from my EQ which I just bought brand new I kill the power and the hum goes away I have match brand new XLR to RCA f & m cables connected to the pre outs bec there's no EQ jacks I opened the amp and everything is intact nothing loose the power cord on the EQ is THIN and detachable the AMP power cord is fixed and is NOT 3 PRONG and when the amp is powered on the hum starts (I think it needs the power cord changed to 3 prong) I'm stumped at this point now any help would be appreciated.
can someone help me PLEASE? HUM/HiSS problem when I pull out speaker cable (3.5mm to 2Rca) from speaker hum disappears. when connect to pc and playing any kind of music, hum disappears BUT when I stop the music after 5 seconds, hum instantly comes back. when I volume up, hum increases. I have been searching for a way to fix it for weeks. For dear God's sake someone help
Phono cables are crap these days, I'm going about making all of my own custom cables. None of the propriatry available cable connectors seem to fit securely or are made with thin tin like plated metal finding quality leads seems to be very difficult.
![ANA[DIA]LOG](http://yt3.ggpht.com/50CpmGNilS8aoMlarZVhI_GxRDoZdbj4ZgwCMZXg-Rq2PrEvCytlE6RVyLUrNY-rwE_sAlZ1Zw=s48-c-k-c0x00ffffff-no-rj)
I had to watch your explanation twice when you used the word Etcetera. You were the only person that I have seen in years that pronounced it correctly. Most people get it wrong by saying excetra. You have revived my faith in mankind. But honestly. I have tried most all of your hum fixes , to no avail. I have even trouble shot my homes ground at the electrical pedestal outside my house. I think my home has a bad ground problem. But I am going to replace my turntables cartridge first and see if that fixes anything. Thanks for your advice and keep up the good work.
Thanks Brian! I usually mispronounce words because I am mainly Italian, which is probably why I got the Latin word correctly ;-) Sorry to hear nothing worked for the hum.
I have never heard anyone say EXCETERA. You must live in an area with many uneducated people.
I had an annoying, intermittent buzzing. My mini PC and preamp/receiver were on the same power strip. I moved the pc power to another power outlet and that solved the problem. I’m glad you mentioned a PC second. Good tips.
Tutte le volte che vedo i tuoi video mi viene da invitarti a guadarmi l’impianto, fare test accennare tutto che va e non va bene, fare un video del prima de dopo un upgrade.
Infatti ho già migliorato un sacco di cose nel mio impianto da che seguo i tuoi video. Ho un impianto completamente composto da pezzi trovati al mercatino dell’antiquariato di Pescia.
Grazie di tutte le info!
Grazie a te.
Che ganzo il tuo impianto. Complimenti!
Hearing those 50/60Hz cycles gave me terrible flashbacks to something I didn’t even know I knew
😂
Lobotomy?
I hear this faint noise every time I’m cranking up the system and as I finally turn the system down there is this screaming voice saying TURN IT DOWN! How do I fix this issue.
Does it go away if you turn it back up? I get knocks through my floor when I crank mine up, it doesn't seem to happen through my headphones which is odd - or if downstairs are out. I'm sure there is a common link here.....
Ah Yes the turn it down beep... if you do that often enough, the beep will accompany you 24/7, it becomes your best friend! 👍
LOL
@@QoraxAudio However if the beep is accompanied by flashing blue and red lights, you may have a serious system fault that requires involuntarily heading to the local precinct to rectify it.
Terrific very straight forward tutorial regarding hums and load noise. Was hoping to also see examples included of stand alone cassette and 8-track decks I have a stand alone quality Panasonic 8-track player/recorder that produces a load hum/noise when a tape is inserted and volume adjusted on the deck. Any ideas how to eliminate this will be greatly appreciated!
In my opinion, the turntable connected to the amplifier without a 3th cable connecting the ground from the recordplayer to the ground of the amplifier, is the MAIN reason for hum.
@, Maybe you have a point there, but I live in a new home with correct electrical installation. I had hum while using the turntable. It disappeared once the ground was connected.
4:00 Worth noting that if the equipment DOES NOT have a ground pin (e.g. two-pin plug), then its not likely an issue. With only live and neutral, there wont be any path for the ground loop unless there is a fault (or a deathtrap designed in China and they tied the neutral to the enclosure). Amplifiers that only have two pin plugs will have input/output stages that are floating, and should not have issues with hum from ground loops unless you inadvertently ground something you shouldn't. In that case there is more likely a power supply fault in the amp itself if it persists with no inputs. The same applies to your TV set. If its only got two pins, it cant cause ground loops. PCs and laptops are different as they must have a grounded enclosure to prevent the case from becoming live at mains voltage should the SMPS fail or suffer a breakdown in isolation. But generally, only your equipment that has a three prong plug can be a source of ground loops. Need the ground, of course! So concentrate there first before going further. And you can check if its a broken ground by simply using a multimeter set to continuity. Check from the ground pin to a bare exposed metal part of the enclosure and ensure there is continuity. If not, the ground pin or the ground connection is not connected, and should be fixed at once.
The same applies if you live in an old building that doesn't have ground on any sockets except for bathroom ones. But there is still capacitive coupling either in the transformer or a little capacitor added on purpose to help with RF interference. This may still couple more to one prong than the other, so rotating the plugs may help even without ground. But it is more likely to be bad audio cables then.
Thanks to your advice I could find the root cause of the hum in my system. I have a Pioneer AV Receiver with Pioneer Multiplayer and small TV as monitor plus a separate Power AMP for a passive subwoofer. Whenever I used the subwoofer with the external amp there was a basic hum only coming from the woofer which I could not track where it derived from.
With your help I identified the TV as the source. If it was switched off, the hum disappeared. But I Had problems to get rid of the hum! Neither different interconnect cables nor use of other sockets helped. Then, trying out different adjustments in the TV menue I found the solution. I had to disable the economy mode of the TV which switches it off after a certain time without signal. This was sheer luck to find this out! Maybe someone with the same problem should also have a look at this.
Great! Thanks for sharing the economy mode disable, a helpful addition!
Great tips. I was having issue with my power cables. So i took an old vacuum cleaner hose. Cut with metal snips along the length. Placed all unshielded power cables inside. The metal rings along the length make a great shield plus it works great helping keep cables organized.
Thank you. I needed to take out my hifi leads from my turntable, and then plug them back in. 😀
mentioning at 13:50, it works, changing the polarity of a 2 prong cord on an amp can have a big shift
One time I heard a humming noise coming from my wife’s nightstand, there was a big measurement mic in there running on batteries.
Maybe it could fix that problem if you ground your wife or you should put in some more effort.
This was such an excellent vid. Man, do I hate hum! Luckily, my system is dead quiet now, but I’m sure you helped many people resolve their hum problems!
I’ve heard that ferrite beads can help reduce hum when placed in certain places on cables, but I’ve never tried it. Also, I love Grado cartridges, but they can cause a lot of hum when they get too close to a transformer. If a lead wire on your headshell is loose or broken, that can cause a super loud hum, even a loud buzzing noise . I now use only high quality lead wires, mostly Jelco or Ortofon made with litz copper.
Again, great vid. Thanks! I’m very glad you really addressed the hum issue. 🎶🔊🙂
I have behringer 1000watt active speakers and a passive 15 step graphic equaliser a djs CD player and a digital radio tuner the output of the graphic equiliser has an intermittent hum from the right channel tapping the output cable stops the hum yet on a meter there is nothing wrong with the continuity of the leads, I'm wondering if I should earth each separates casing to each other to stop the hum.
Salve, ANA/DIA/LOG : ancora una volta ci rendi partecipi della tua enorme Conoscenza in tema di Hi-Fi, con un’ Opera meritoria nei riguardi di noi tutti Amatori della riproduzione Musicale High Fidelity.- Poiché non è da tutti il divulgare Nozioni, con la facile e comprensibile tua esposizione, di una Materia che talvolta appare complessa.- Mi permetto quindi di classificarti a nome di Noi tutti, quale Personaggio di rare tue virtù e, credimi, di Uomini quale sei tu, ne nasce uno o forse due nell’arco di un Secolo.- : Aldo di Verona, 6/6/2020, anno Domini, ore 9:18.-
Hi...what an informativ vd :-) This is a HUGE problem for almost everyone, and any Audiophile has tried that on their journey. The types of hum is really important to nail, so your starting point is valid. From here you can focus on the source causing these problems, and i guess many of us have experienced a phono stage with crazy annoying hum :-( So thx for taking up the task ;-) Cheers from Denmark
Thank you Thomas!
I have 60hz hum and the main culprit is my rca interconnect cables. I dont know how to get the hum out of my system. Any help would be much appreciated.
@@ArthaxtaDaVince777 First you need to check your grounding? Next you need to check the cables u are using for the unit? Better, check every cable in your system for defects? Also the arm cables (turntable) needs checking, before deciding anything? With Rega decks and phono stages, iv'e came across the hum issue several times, and it has often to do where you live in the world? Some experience no hum, where others experience hum with the same system (or similar). Hope you get it fixed?
@@thomasandersen1784 I'm wondering if buying XLR cables instead of RCA will solve the issue.
@@ArthaxtaDaVince777 changing from RCA to XLR cables created the problem for me. Trying to solve it now.
Great video yet again. I’m going to play around with my interconnects 😀
Does it work?
@@conexos2007 nope, I lifted the ground of one of my devices eventually.
Hi, you should say sensitive instead of sensible. Different meaning. Great video, btw!
Thanks! I had a phono ground hum when I first hooked up a Mani phono preamp. All I did was disconnect the ground and reconnected it and hum was gone. Seems the connection was better when the “U” shaped connecter bottom was slightly away from the screw post. Ie the sides of the “U” connecter nicely secured got rid of the hum.😀
Another important topic with very little practical advice (except here !). One common problem (that I had) was ground loop caused by using multiple AC lines combined with my own DIY audio projects. Basically, I just had too many "three prong" devices plugged into different outlets. One decent solution is to use a "ground lift circuit" at the point where you find the source of the hum. I was able to add this and switch it in/out. (DIY-techie stuff: the circuit is just a 10ohm (2-5 watt) resistor and a .1uf (200+ vdc) capacitor in parallel. It sits between your ground wire and your AC earth ground point. It's safer than a "cheater" plug, but you need to build it.) Many people feel "ground lift" is dangerous. True..if you have NO ground point to begin with. However, the fact that you have ground loop noise probably means that your system has multiple (non-star) ground points. This is a NO-NO for a high quality audio system. Oh..if your are using a turntable...The cartridge cable MUST be grounded to the phono-pre-amp which in turn SHOULD be grounded to the main-pre-amp (or input selector amp). Many pre-amps have a ground lug for this purpose. In addition the pre-amp (or input selector amp) should be the "star" of all the grounded components. Like they say in Italy.."All roads lead to Rome..." One of the earliest practical examples of "star" topology.
I have this problem but it is intermittent.I will just happen with no warning.I have noticed if i just barely touch the interconnect cable it stops.I have checked the cable on another amp and can't find any shorts.The buzz is there even if I turn the volume all the way down.
Seems interference (intermittent and present regardless the volume). Try cables with more (double or triple) shielding!
I have had a lot of noise coming from my Benz Micro Glider SL, probably because it’s a low output MC.
I found that changing the phono preamp input resistance helped *a lot*.
Quick note on the 50/60 Hz. The 50 or 60 Hz itself is not so much the issue. The real issue is the harmonics you get after the mains is rectified by the power supply. The harmonic overtones (e.g. for 60 Hz: 120 Hz, 240 Hz, etc.) are whats most bothersome. Thats what gives it that "buzzy" quality to both the 60/120 Hz tones. If only 50 or 60 Hz was present, it would be hard to notice, and commonly the pure fundamental is often present in very small amounts in most equipment due to magnetic coupling. Some of it can be helped by adding a snubber network on the secondary of the mains transformers if your equipment uses it in lieu of an SMPS. It will help eliminate the sharp pulses from the rectifiers cutting off after the bulk capacitors have charged. This will help remove the higher order harmonics if you cant sufficiently isolate the grounds.
Cheap audio cables/rca jack cables ended up being my problem. They were the monster brand, but they were old.
You mentioned it very briefly at the 6.08 mark:cable TV isolator. I tried everything to include an expensive surge suppressor/sound conditioner to eliminate the hum in my speakers. Nothing made a dent. A simple cable TV isolator did the trick. Bought off eBay or Amazon-can’t remember.
I bought my TV isolator after my USB TV tuner blew up when I connected both it and a charger to my laptop. You could feel the electricity making your muscles move when touching both connectors. Cable TV usually comes from a different building. And buildings far apart can have ground at different potentials because of both ground resistance and the power lines carrying AC being out of phase between two separate points along the way. That's why all devices with RJ-45 Ethernet sockets have little isolation transformers in them, sometimes even inside the socket itself. Because that standard was actually designed with transmission between buildings in mind.
The legend says: The hum you are hearing is the analog soul... trying to communicate with selected users, chosen by the analog world which exists in another dimension.
😆
@@anadialog 😆
Hi! I just got a svs sb- 1000 pro subwoofer, connected through speakers level (vintage pioneer c-73 power amp with no sub out) and I got a hum in the sub when everything is turned off. Once I turn on the power amp and the pre-amp (m-73) the hum is gone. What I did notice is that if I take out the ethernet cable from the node x streamer/dac, the humming is almost gone. Still can’t figure it out. The ethernet socket in the wall is close to the power socket. And I do have quite long speaker cables that I use for the subwoofer, even if the sub is close to the power amp. I can cut them if necessary. But I’m not sure if this is causing the hum.
if my AV R DSP is dead.
will I be able to use it with out DSP ??
just like amp ?
I think you can, yes!
@@anadialog thank you for the answer
I got mains him which persisted after changing DAC, interconnects, power leads, plug sockets and power strips. The only thing which made it go away was moving the DAC to the other side of the amp. Any idea why? It’s as close to the amps as before. This makes no sense to me 🤷🏻♂️
Hey DIA, thanks for the interesting set of tips. If I remember correctly, you're actually one of the main reasons I've recently started learning about cable ingredients and wanting to build make my own designs that have the purpose I intend for them.
I saw a video of you about three or so month ago, you were whispering to the camera as if you were sharing these hidden secrets that the audiophile world didn't want us to know about. Not that those "secrets" were necessarily useful to me in my situation at the time, but you alone gave me the mentality that this particular part of the audio world wasn't just about spending money, there was a completely different route to go down.
This route involves a lot more learning, more heart, and the ability to really put yourself into the passion.
Yes...😂 that was me! I am very happy it helped!
I get some 'hum' or buzzing from my amplifier, due to other gadgets such as Computers ect. As long as my initial signal chain isn't close to those 'noise makers' it won't affect the audio directly.. (as is proven by simply dumping it via firewire to the computer) - but monitoring that same audio can have noise in from said interference. Tends to be components that suffer some sort of noise / distortion / hum.. as long as your signal chain from the source is clear and you can prove this , it's then easy to target where hum is coming from. This is of course aside from broken components (bad capacitors ect) One thing to keep in mind as well, never keep your Cellphone near any signal chains - if you have to keep your phone near your gear, keep it on Airport mode or you WILL pick up distorted interference. Test this any time by putting a cellphone next to your headphone cables or a tape deck play head and you will hear it. It's the worst noise in the world.
I have some question. I was doing live band. Somehow I have hum noise coming from my sub. I have ground plug for each extension cord, but still get hum
That may be the problem. Try using the sub in a different power socket and see if it makes hum and so on for each component. Usually it's a ground loop that makes hum. Plugs with no ground don't hum.. but are dangerous.
Hi, I’m a subscriber. My class A amp, (adcom gfa5802) just recently developed a slight buzzing hum on the left channel. Do you think the filter capacitors for the left channel are bad? I checked the DC voltage at the speaker terminals and they’re at 0.025V, so I think the coupling capacitors are fine. Or do you think it’s something else? Thanks in advance.
Hard to say but when the Humm is from only one channel it is most probably an inner fault. In any case try using a completely different plug for the amp and see if it changes. Also, try using a different amp if you can to exclude the loudspeaker.
I have a ground loop and hum with my gutar rack .i have axe effect 3,furman power conditioner,crown power amp in some venue i have no hum at all but when i play other venues i have high screeching noise and groud loop issues
I have a wonderful Mark Levinson amp with hum. I tested with a cheater plug and hum went away. So , at least, I know that the hum is from the house ground and not the amp. Thanks so much for your advice. I removed the cheater plug and will work on power conditioning.
hello I have the following 1 power amplifier, 1 preamplifier, 1 pre phono, and 1 turntable, is it correct to connect everything to a line conditioner?
Well, it's always a good idea to separate high power components like amps from the rest! That's for sound quality not hum
Thank you . I have a separated pony box with one 20 amp breaker. The ground in this is an external ground copper rod 10 ft in the ground a a 14 gauge Teflon coated copper ground is solder to the rod and clapped with a copper clap. My 12 gauge home 3 wire run direct to a plug on my line conditioner.
Only my Dual 1229 is a hum issue. CheersJohn
I have had this issue. The thing that helped was insulating the power cable ground on the plug side with electrical tape. The amp still has a ground connection through the RCA interconnectors to the DAC but the hum stopped. Is there another more elegant way to fix this?
I did note you said you couldn't answer all questions, but may be some other viewers have a suggestion. I only just noticed hum when I had turned my amp(200watts per channel) to 80% of maximum volume. The hum goes away when I touch the tone arm mount on the TT. At playing levels the hum is just not there. I don't have an earth connection on the TT the reason being it was serviced and upgraded by a well respected expert on that tone arm( SME 3009) I could add a ground wire however as the hum is only apparent at high vol I have decided I can live with it.... is that a good or bad idea? Edit: I found out what the problem is and it is unfix-able. The issue is not hum. The cartridge, tonearm in combination with the high gain of the amp have created a Radio receiver, with he result when the amp is turned to near maximum volume I am getting a badly tuned radio signal. I did some checking its not an uncommon problem
Thanks a lot for the info. Another question, what particular power conditioner do you recommend, a passive or not? 👍
I dunno if you talked about this already but what should we do about tape pressure pads...lots of mine falling off and on 8 tracks actually disintegrating
Don’t forget Tube Gear can have Hum from a bad tube. I just upgraded my power tubes and found a hum on my right channel. I swapped tubes between channels and still had the hum on the right. So my problem was not the tubes. After more research I found a loose RCA jack on my vintage amp. After correcting the jact the hum disappeared. Moving the amps to install the tubes must have the catalyst to loosen the jack the last bit!
I’ve got synths going to my amp. But I’m getting him only from ones without 3 pin power chords. I’ve changed wall socket but that makes no difference. Any ideas? Could the power leads being only 2-way have some effect? If so, what is the solution?
I am afraid so. Try using another 2 pin cord instead of the three pole...one at the time. You must understand who is doing it before doing anything...
I think I sorted it. I simply connected the synth outputs to different inputs on my preamp and it’s all sorted. Looks like a dodgy channel on my preamp. I’ve had problem with DACs connected to my preamp before. It’s a great preamp: Musical Fidelity a308cr.
There are most common issues with ground loop , power cables almost always causes that. you can just STICK insulating tape on the ground section on both sides of power strip. Ground loop noises WILL disappear.
Picture please. Lol ty.
@@gonzaljevic just stick insulating tape on ground part of the power strip where power cable gets in. cant send you pictures here. I HAD ground loop problems with my active monitors. So easy to do.
@@MarkoVlasicAudio Seems like this is a good idea. But I still don't understand it. Do I place the tape on the ground socket even though my cable has a ground wire? Is the purpose to close the ground socket in the outlet?
@@ArthaxtaDaVince777 just try to stick tape over and noises will be at minimum. even silent.
@@MarkoVlasicAudio Can you give instructions? Sorry I'm extremely ignorant on this topic...
Thanks for the video. My turntable hum decreased to acceptable levels after I moved my phono preamp away.
Great! Thanks for telling us.
Thanks man this vid is very helpful.
I have a kenwood km-206 that only hums when a rca cable is plugged in , even hums if the rca cable isn’t connected to a source
Did you try changing cables...maybe there's a short in the output...
@@anadialog yea I tried with multiple cables, when I have a speaker connected and I touch of the the rca input grounds with my finger it make a pop so I’m thinking it has to do with the ground
Hey update , turns out the input jacks aren’t ground to the amp chassis
I have a very noticeable subwoofer rumble while using my Technics SL-1200MK5 with a Nagaoka MP-200 cartridge, the amp is a Simaudio Moon ACE can any of the aforementioned intrusions in the signal be the culprit of this? it does a huge subwoofer movement even at quite passages, how can I eliminate this as I´m afraid it will damage my speakers? thanks.
Many times with sub, it’s a long sub woofer cable. You can get a cable interconnect ground isolator to fix the issue. Hope this helps.
I had hum problems with my headphone amp, but I couldn't understand who was the culprit between amp, DAC and PC, as removing any of this three solved the problem. What's even stranger is that the DAC doesn't even have ground on the plug! Anyway two things could solve the problem, the first was using a toslink optic fiber cable between PC and DAC, the other possibility was to remove ground from the headphone amp. I chose the second as using anything different from usb to connect the dac means that I can't control the volume from pc, so I need to use the remote or reach for the volume knob, but also audio quality seemed to suffer just a tiny bit (but it might have been just suggestion).
Had a hum on one channel, turned out that one of the several XLR balance cables that I use in my system was different than all others in that while all others had four wires for each channel this particular cable had only three.
Does that device that IFS sells as ground loop breaker, is safe to use?
Which one?
Video starts at 1:13
I only hear the 50hz noise (i think this is this one that i hear) when i am not listening to music and i turn the volume very high at a level that i never reach when i listen to some music. I have never felt disturbed by this so do i still need to investigate more? Do you have any recommandation for quality preamp power cord without (as you always say) spending an arm and a leg?
Thank you for the video.
That is normal.
Especially when a turntable is connected.
Have the same case!
Well, if doesn't bother you your lucky! Before getting a good power cord just try to change it with a new one, even just a simple bulk standard black power cord and see if it changes. With turntables things get complicated. It may be many other things. Check the turntable doc I linked in the video description it has loads of solutions to try!
@@QoraxAudio ok thank you i didn't know about that.
@ yeah i feel like i comes from the amp. It is an old one (kh 503). I'll chek it out. Thank you.
What do you do if it's coming from your plasma TV? Can you fix it or does it need to be replaced? Thanks.
Sure you can fix it! in the video the solution...
Ounce again thank-you for your good advice, it is always much appreciated, grammar correction the correct word is sensitive not sensible. I own a pair of Sugden mono blocks amps one hummed 60hz sound so I changed the power cord and total silence Grazie mille.
Loud 60 hz buzz. It's a stereo receiver and it's definitely not the table. I tested the table on another input. Of course the signal was low but absolutely no hum. It's only when chords are connected to the phono input and that input is selected. When there are no chords attached to the phono input there is no hum. The cables are fine. I've put new rca in so it's not the chords And it hums whether the phonograph is on or even disconnected to the cables. No cables no hum on phono but the cables are tested good on other equipment. Is it a dead short and why no hum if no cables?
As far as turntable hum..i have tried 3 turntables..3 different amps and still have the problem in all configurations..so maybe there is a ground prlblem in the house..i dan't think it can be anything else..tried different cable..power boards..etc
My house also has bad power
My new system of Accuphase amp and Eversolo 8 streamer, the streamer is causing hum. Nice unit but obviously not perfect in its internals. I had some success by linking the amp chassis and the streamer chassis with a wire. Reduced minor hum to about 20% so I consider that a success. Next week will get a new Isotek power board to replace my Thor, and a Isotek power conditioner to clean up any DC in the AC. Already have upgraded Isotek power cords.
I thought it said ‘how to kill Hifi mum’ whoa! This is gonna be good. 🤣
I'm waiting to my new powered studio monitors. I hope I don't have to watch this video after getting them. Great that you keep on doing these videos.
mr. Finglish (Bäd English Recs)
My Edifier speakers hum when I switch on aux, which is a turntable. It's subtle and I'm lazy, so I live with it.
In my case the hum comes from connecting cables to two of three inputs of my integrated amp. On the third input complete silence.
Nice attempt to solve a very common problem, but it’s a minefield and I would like it if suggested a call to a local Hi-Fi retailer where the equipment was bought from for the safest and best advice if all else fails. If they are any good they will identify the trouble and fix it, like the did for my ground loop problem which had faulty tonearm cable. Keep the analogue faith✌️ (are those CD’s in the background?😁) By the way - the word is ‘sensitive’ not ‘sensible’ but as it’s not your 1st language 👍😁😂
For those whom are connecting a phono preamp to their computer, be aware of inbuilt into the motherboard sound cards as they can be crap. I has hum and ticking noises and then purchased a PCIE sound card and now no longer a problem. but be ware that the input khz rate can be low quality.
I solved the problem after watching this video" nothing worked so I got a hammer" and smashed my power amp 🤨
Rakuten amd Walmart.com have the top-rated Tripp Lite LS606M Power Conditioner for less than $90. Great reviews for hum elimination. over-voltage, etc.
Good ex0lanation
I read here about insulating ground pins. Doesn't sound safe.....
It is not safe.
To make matters worse for me 50hz is the resonant frequency of my listening room.
As you refer to lamination rattle and not being able to address it. Actually it is in many cases not at all due to poor transformer design. Transformers are more or less sensitive to dc leakage in the ac line. Devices like LED lighting on dimmer switches or other devices plugged into same circuit can leak dc back into the lines and the transformers can hum or more like buzz. This is easy to fix actually. Many power strips feature dc leakage filters. Removing dc from the lines. And eliminating buzz from a transformer. Usually larger transformers can be sensitive to this. Even some of our products have buzzed. However it requires a significant amount of dc leakage to create this problem. Yet i have always been able to fix this issue with our customers. Often they have an older home with poor wiring, or sometimes it’s the devices plugged into the same circuit that causes this issue. A dc blocker is needed. Like these examples.
www.ebay.com/itm/133114436839
Or
Most common is this one emotiva.com/products/cmx-2
Does the job, removes dc offset and stops transformer hum. I should be clear. Most cases it’s something else leaking the dc which in turn causes the hum, and can damage some electronics long term. So should be addressed and dc offset should be removed. In some of our products we have large 100VA Otype transformers which are superb for audio yet can be sensitive to dc offset. But it’s less than a percent of customers who have experienced a hum. And all of them fixed with a device like I mentioned
Thanks Tim for making that clear!
THANKS GREAT VIDEO
If humm comes from electrick wiering/outlet/unstable power/bad grounding, UPS solves these. Also, if outlet/wiering is bad or something faulty on same line. Can end up Your equipment smoking, thats another thing UPS protects You from (atleast good one).
Emotiva CMX-2 is great for DC Offset Hum. Furman has the SS-6B for only $39.00 and www.ebtech.com has the HUMX for about $70.00. Both from Sweetwater.com
Greetings - I enjoy your channel - first time commenting. I've had my Technics 1200g for nearly a year. No hum issues, but I hear a very faint periodic "thump" once per revolution (happens whether 33 or 45 rpm - obviously more frequent with the latter speed). Inaudible when playing music (except for very quiet passages) but I can hear it between tracks. If the tonearm is cradled, I. don't hear this thump sound. I know this is a bit off-topic for a "hum" video but wanted to ask if you have any thoughts as to the root issue given your ownership of this same turntable. The only mod is a 3rd party mat. Cartridge is an Ortofon Cadenza Bronze. Thanks for any suggestions you may have!
Humm...I've seen around this wobble problem affecting most new Technics tables. Maybe in yours is quite evident? Try to check that...
Thank you for the reply. I've contacted Technics consumer support and asked for their assistance having this problem addressed. Although this sounds like a latent defect, I should still be under their factory warranty. In all other respects, I really love this turntable.
Ah yes 50 Hz the bell tolls. It tolls for thee
Tripp Lite LS606M at Amazon for $70.99! Real Power Conditioner!
I had this after my decks have been standing.
How I do it is to isolate the setup with fresh cables if it continues ? I get the screwdriver & stripy strip .
That's the noise that comes out of your speakers when you touch the auxiliary cable with your fingers. Weird!
Preamp has no power cord . Power strip I will change. I my turntable RCA were shit, I know shield turntable cable need to be
I had my phono preamp sitting on top of my DAC. Discovered it was a source of hum. Go figure!
Phono preamps are EXTREMELY sensitive....in most cases THEY are tye problem and must be isolated somehow
Great!
my amp doesn't even have a ground pin...it's only a 2 pin power connector...
greatfull
When the power is low can make Amplified speakers make buzzing
And if I may add: just buy quality products and keep it simple. very simple. Do not have to be rich for a quality stereo system.
Minor 3rd?
Oh man!!!! Don't get me started..fucking hum is driving me nutz with my new turntable!! I have tried so many things with zero success. At what point is it the turntable itself?? I feel like my hum is quieter than your 50 60 Hz example. Only happens when the cart hits the record..... Nothing threw the tube phono pre amp, it's super quite!!
It's crazy as it just appeared out of the blue. It was fine for the first three weeks in operation
Try touching and moving your phono preamp and if that does not change try removing the blue and/or tye green which are ground and see what happens.
I find nothing to help shitting hum , sandbox 4” of sand, sting on 1/2 5 squash balls on a 500 bench maple stand, my Dual has a 2 prone plug, my amp is on the second shelve. 18” below 2” of maple my turntable and my linear power . I will look at power cords and Switch my HiDiamond power plug in box.
I just installed rca terminaters on all of the unused rca inputs, To difference is crazy different
If you got hum in your system just means it's enjoying the music but can't sing along😄
Well European connection it is a loop connection ring main, you don't want that in your mains the hi-fi has to be a dedicated line ideally and can be dedicated just depends how the setup is, a fridge or freezer can cause hum on the network if it's on that ring main or air conditioner. Ideally on every power cord a safety cap film polypropylene capacitor of 0.22uF at 275v across the live and neutral terminal this can be dangerous and you have exposed wires!! this should be done at the socket behind behind the Wal,l or in a strip each connector to each plug individually. They consumer unit can get noisy MCB or RCD producers noise ideally replace it with a fuse if a 20 amps mcb use 15 amp fuse wire.
SEPERATE GROUND ,
I believe my hum is coming from my EQ which I just bought brand new I kill the power and the hum goes away I have match brand new XLR to RCA f & m cables connected to the pre outs bec there's no EQ jacks
I opened the amp and everything is intact nothing loose the power cord on the EQ is THIN and detachable the AMP power cord is fixed and is NOT 3 PRONG and when the amp is powered on the hum starts (I think it needs the power cord changed to 3 prong) I'm stumped at this point now any help would be appreciated.
Did you try to attach the eq to a different outlet?
can someone help me PLEASE? HUM/HiSS problem
when I pull out speaker cable (3.5mm to 2Rca) from speaker hum disappears.
when connect to pc and playing any kind of music, hum disappears BUT when I stop the music after 5 seconds, hum instantly comes back.
when I volume up, hum increases.
I have been searching for a way to fix it for weeks. For dear God's sake someone help
Phono cables are crap these days, I'm going about making all of my own custom cables. None of the propriatry available cable connectors seem to fit securely or are made with thin tin like plated metal finding quality leads seems to be very difficult.