How to test and measure your amplifier outputs - avoid blowing up speakers
ฝัง
- เผยแพร่เมื่อ 5 มิ.ย. 2019
- explaining off set measurement
I wonder how your amplifier/receiver is balanced. you hear the words from Simon...don't worry if there is a difference but do not connect speakers above a certain output level.
You can do the same test when you go score a amplifier and there are no speakers to test there, just take your multi meter and headphone with when going out scoring. MEASURING IS KNOWING - วิทยาศาสตร์และเทคโนโลยี
Simon, you forgot to explain me how i can check the wall outlet with my cheap meter...where does my meter has to stand for checking the wall outlet?
Meter must be set on ac (the V with the little "wave" beneath).
if you don't see new video's from me anymore you know the test went wrong
@@vintagestereo hopefully test will go just fine.
It's "explain to me", not explain me.
Very helpful. I wouldnt dare mess with the bias personally before watching this. Thank you for showing how to measure it...
Big thank you for this video. Watched many times for a refresher. It's that turn on pop that I'm always testing for
This video will help me a lot, thank you for sharing your knowledge.I had doubts on how to gauge the power of my amplifiers from my receivers.
Simon, my playback amp plays through the line output, however not through the headphones and the meters no work, can you help me.
Thank you gentlemen. I appreciate your video it help me to repair my subwoofer terminals
Great video i jus learned some new stuff in details which alot of ppl dont actually show u where to set ur multi meter i appreicate this video
This is really handy for guys that play and buy old Adcom gfa (Nelson pass) designed amplifiers. They have no dc protection circuit , so very simple and easy to test this way !
As those are notorious for blowing up speakers that way
179 True RMS! I love my Fluke I bought mine in 1996 for 223 American dollars. Good deal man. Thanks for the video.
Great video! One of the only ones I've seen out there showing you exactly how to use a Multimeter fantastic thank you.
Thank you. I have am amp.with one speaker slightly output
Thank You ! Excellent explanation .
Helped me too, thanks man.
I have to try this. Thanks.
Thanks a very informative vdo👌👍💐
He is right about those switches to be tested. If you happened to own Carver C-19 Preamp. be careful because it comes with rotating switch which will thump out dc voltage as ou rotate it blowing speaker tweeter, which happened to me. Push button type switches are another bad ones, not much as knife type.
Very good vid. If people go measuring things with multimeters, be 100% shure to wire the meter correctly. If by mistake the meter is setup for current measuring, you will make a short on the leads, and this can be the end for you're gear, or meter...Old devices of say, 30 to 50 years of use, it's a good idea to check and replace all capacitors. I always check first bias current on output stages in amplifiers...
wow, the video was just 30 seconds online and I had already 2 thumbs down, so they even didn't watched the video but gave the thumbs down, really sick people.
Scoring videos coming back?
Don't care with this stupid people, your videos are great, keep making your videos.
i have a few scoring video's waiting to be edit
stereo awesome cant wait 🤗
@PODCAST WITH PICTURES probably the stuff explained in this video is simple and the thumbs down are from people who already knew this but those people don't know that there are also many persons, like me, who didn't knew this
5:30 what if the reading is actually zero? I have an amplifier that has no sound coming out, neither from the headphone entry. Any ideas are welcome, thank you
Very good..off set measurement
you are the biggest amplifier master I know so this video is for you simple but thank you for not looking down explaining simple stuff. I am sure the persons who gave thumbs down doesn't even know 10% from what you know about electronica but you understand that even the most simple electronica lessons are abracadabra for many others. To beginners I could explaining to make the perfect O-uchi-mata but even after 1 year of practice most of them can not make a perfect one. Everybody have his/her specialty, for you electronics is simple but for some like me it's very hard. thx for your empathy and support Carlos, this is why so many people love you so much
Hi, How do I check headphones output on focusrite? What value should I set up and where to put multimeter?
wat een beest mooi hoor.en leerzaam.
my Yamaha home receiver is no longer playing music on the right side. The balance control only works for the left side. Any suggestions what to do
Can you do a video that shows how to take voltage and turn it to watts?
Hello this is very intresting thank you. I just bought a second hand amp and connected to my speakers and the right channel stopped working. checking the volts DC I get a reading of 12.5 mvolts dc on the right channel the left channel i s 0. turning dials I have no pops or cracks is there anything else I need to check thanks
IC was crash so check it out don't connect speaker
I make it a habit of always making sure I turn the sound down on my 90’s Proton Power amp. My new AVR has a safety feature when switching between functions.
Where did Simon get his electronics knowledge? The kid knows his stuff.
By the way, fuck the dislikes!
i study electronics. If your amp has a relay always turn down the volume when powering up. There will be a small spark in the relay when it kicks in. If you have the volume up that spark will be bigger and will wear down the relay faster.
Andrew’s lucky to have your friendship and knowledge. His video of your place and the vintage equipment you have, work on, and sell, was amazing.
Thanks for the response, Simon.
The Proton amp has about a 3 second delay after turning on, but I turn the volume to O when I turn it off, and check again before turning on. It was my first decent amp I bought when it came out, it still works great, and I love the dynamic headroom it has, the large green-lit VU meters and the “Power on Demand” feature the unit has. Have you ever seen the Proton AA1150?
I have 40mv on my Yamaha amp rs202d which is new.
Is that ok ?
On 05:28 mark you said "1.8" when in reality it reads 18.2
Does this affect outcome in any way?
one channel on my amp is at 37, so I should fix it.. but I don't know what to do
Change ic
I love the half english and half dutch explenation
Coolen Dutch 😁
la traduction en Français direct n est malheureusement pas bonne , enfin je ne vois pas une grosse différence entre ces deux voltmètre PUISQUE 0.8 SUR BORNE DU HAUT avec les deux . es ce bien de prendre du mesure sans haut parleur ? MERCI
Just curious, shouldn't the black probe be connected to the COM port on the meter ?
I don't know. I have 0% knowledge but Simon connected it this way and he knows what he do
Speakers are ran of AC not DC cant get an accurate measurement if you are checking for DC. You see that little - symbol pop up when he checks it..... means you are not in the right setting
Yes,he had it hook up wrong on the cheap meter it read plus votes . On the better meter it read negative votes.
If the Amp have Speaker Relay this dc offset problem protects the speaker from blowing?
NO
You can't watt meter audio... Load has to be simulated for accurate readings
I still don’t understand why there is a difference of 0 mv on one terminal and 18 mv on the other. Are they both supposed to be 0 mv?
0 is ideal but 18mv is good too, good enough to be sure your speakers are safe
I did these tests on my Sansui QRX-3500. The amp is in poor shape and needs to be fixed. It doesn't look like a fun fix.
Thank you, quick question, if an amplifier burns your speaker, does that mean the crossover of the speaker is also burn? Or could it be only the speaker coil? (I burned my left klh 10.5 tower with a Fisher rs1080...) Thanks in advance!
So to test speaker output use millivolts 👍🏽
Hi, can you find for me one this amp in a cheap price?
cheap?
He is selling this amp but these amps are not cheap
U can made this amp very easily
Try power transistor audio board
May be in the cheap multimeter you connected the probs wrong way
So you guys are most definitely dutch .
So this can be adjusted (bias) correct.
correct
you sound like michael van gerwen haha
He’s from Holland. Isn’t that weird?
dutch?
A millivolt is 1 thousandth of 1 volt. Are you sure he is a "pro"?
Nidhi shelare Ej-4i
Good God man come on, get on with it
“blew up” 🤣🤣🤣💀💀💀
Okay i got bored. Next video.
you must be iemand uit nederland
Kwam ik net tegen: iemand heeft je intro gepikt!!! th-cam.com/video/z6eCdehmKdI/w-d-xo.html
BTW: ik heb dat filmpje bij Google gemeld onder de noemer dierenmishandeling.
ohhh ja die muizen en ratten vallen worden goed bekeken maar wat ik heb ontdekt dat sommigen hun tamme ratten en muizen voor deze filmpjes gebruiken, want je ziet zo het verschil tussen tam en wild. Die intro heeft mijn neef voor me gemaakt is een standaard Apple ding dus door iedereen vrij te gebruiken
denk niet dat google hier werk van maakt want deze filmpjes zijn erg populair, kijk maar naar het aantal kijkers, je hoeft alleen maar video's over ratten en muizen te maken , een per week en je pakt zomaar 20.000 dollar per jaar. de video van de link die je me stuurde is meer dan 3 miljoen keer bekeken dwz dat deze video al meer dan 4000$ heeft verdiend. Ze maken dit soort filmpjes voor het geld en omdat muizen en ratten als ongedierte worden gezien doet google er niets aan. Soms hebben ze een water trap, een langzame dood dus nog erger dan deze
I hate when they make long ass videos for a concept that can be explained in like 5 mins. Get to the fucking point.
This is how I make all my video's, if you don't like it don't watch.
First of all this guy talks too damn much like he loves hearing himself talk.
For a video that was supposed to be no longer than 2 minutes this ends-up being 15 minute video.
2. when he's measuring the mV at 4:55 he says if the measurement indicates about 4 mV (can't understand if he says 4 or 40?!? anyone??) "you might want to put it a bit down" then he says "if it's around 8 (again, does he say 8 or 80) on it don't connect speakers because it will blow up the tweeters".
He then proceeds measuring the other channel at 5:29 which indicates 18.5mV. He says "that one reads around 1.8" WTF?? The dot is clearly behind 8 which is 18 ?!? (confusing again). Did he have to remove one decimal due to how his meter displayed the result?? Even the author of the video says "the other one reads 18". Most probably indeed that reading is 1.8 but the technician should have explained why he read it that way. For a beginner that never used a meter in his life this is far from straight forward.
I got a Sansui 881 from the 70's and the Aneng AN8008 multimeter bounces around the 60mV range when turned on.
Recently I bought a Musical Fidelity B1 and wanted to know how to measure the outputs as it came with a pair of B&W DM110i that had blown off tweeters. I've put it on the multimeter and one channel measures 19.6 whereas the other one measures 30.7 on the mV setting.
How do you determine the polarity of speaker wires coming out of a guitar amplifier?
It's just a black double wire. (One of the wires is smooth and the other has ribs.)