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Hi Thomas. I am glad you are happy with a tube DAC, but am not a big believer in tube sound vs solid state from my own experiences, but am glad you are happy with it. I think the frequency response is pretty fixed, as is the phase shifting at that frequency, because this is an analog device. The THD is pretty decent, but that is with both channels driven- it is possible it would change with one channel being larger than the other by say 3 dB- maybe I will look at that at some point.... Thanks for commenting!!

Thanks so much for the question and I get the confusion. The difference is that the channels are being put in out of phase in the hopes that they will cancel out at the opposite ear. My analyzer does not take into account the phase differences, just the amplitude of the signals. Hope this helps a bit.

@@vintageaudioreview hi thank you very much for your kind reply A great 3d soundstage is the holy grail for many me included It is a very fascinating sensation kind regards gino

I would like to install a wireless remote into mine to just switch the SH in/out... maybe one day.. Thanks for the info Andrew!

Thanks for sharing and am happy it is working well for you with the maggies!

Sorry to hear about your loss and appreciate your sharing- could probably find another if you look....

@@vintageaudioreview thanks so much, hon! 😺 ❤

Thanks much for the feedback. Your receiver looks decent and is certainly a bit newer. I have some Eico mono integrated amps that will be on the bench before too long....

Thanks for sharing your experience. A 12.5wpc is not going to be enough for that unless it is in a doctor's office for background music. I am not familiar with the Pioneer amp you mentioned, but if it is 50wpc you should be ok.

I thought it did a good job and am glad it it working out for you... for free! Thanks for the comment

Thanks for taking the time to share. Hopefully it did not cost you much to repair the RB1070. I typically don't hear a lot of difference between amps when driving speakers at a level they can handle. My biggest complaint about the rotel was the decorative heatsinks.

That is a pretty good story with a happy ending- hopefully the same will happen to me someday..Thanks for sharing!

I dream of that kind of find , jealous :-)

Not familiar with TRS connections. Worst I have come across are those in some older Pioneer receivers. Appreciate the feedback!

Thanks for sharing your experience between the two. When I review an item I am typically in the 80db SPL, sometimes in the 70dB spl area, which is actually quite loud enough for a lot of listening- like when I am reading... there could be several variables as to why one sounds better than the other....

@@vintageaudioreview All I can figure that, at low volumes the 2000 is delivering more bass and there is less treble. I think I am midrange sensitive. My first getting hooked on vintage was when a tech at a stereo shop was working on a Sansui and played music on Minimus 7's I would say the sound has emphasis on highs and lows, with great punching transients and between instrument play it fades to nothing REAL FAST. The increased amount of quiet and lack of "sustain" emphasizes the music. The same characteristic I love about the 2000 could likely be interpreted as a much lower mid range. Another example of a contrast is a Cambridge Audio AXR100. I really hate it's sound because there is so much midrange it reminds me of a swimming pool megaphone style speaker. I don't know an adjective outside what was stated "glassy" pertaining to fast fade to nothing.

@@27b-6Buttle To me, receivers sound good or not very good when using my Wilson speakers. Some may have more low level hum or hiss that goes away once the music starts playing. I will be doing an a/b between two vintage receivers that should be interesting, but that won't happen for a few months...Appreciate your sharing!

Thanks so much for the commentary as always. Kenwood gear usually gets a lot of views, which tells me it is popular. I never considered the volume control as part of my decision process- though I do prefer some over others as far as measurements go as the step sizes they provide. I don't listen to FM as much at home, but do listen to AM (talk radio), but can see why receivers may not be as preferred as integrated amps nowadays- though receivers can have a better look (?). Funny you should mention the Freya- I have one (+ model) that I will be doing a video on relating to tube rolling.I do not like the sound that volume control makes at all- sounds like a scratch pot to me.

@@vintageaudioreview . Thanks. My Freya+ is still in the box. My brand new stereo chain is approaching completion. With NO experience with tubes, I've chosen a balanced quad of Northern Electric 6SN7s. I picked them for no other reasons other than they are the big shoulder/bottle type (they'll LQQK cool standing proud on top of 'tube savers' too) and because they are related to a Canada brand or something even though I'm sure they're still made by the Communists. I'll keep my eyes peeled for your tube rolling video👍. Acid Jazz, Funk & Brass 🔈🔉🔊

@@TriAmpHiFi Yes- it will look nice with those tubes. I am real interested to see how things "measure up" and I have my tube tester out and will start measuring soon,

Thanks for taking the time to give me some constructive criticism- I think. I use a usb desktop mike when recording the data and have a RODE video boom mic attached to my DSLR when recording my "intro and outro". I get a comment every month or so about the sound quality. Which sound do you have a problem with ?

@ the intro and outro audio is the problem, way too much room sound. Just get the mic closer to you. It’s ok if it is in the shot. The rest of the audio is great though. Thanks for your consideration.

@@mladenbasic1 I appreciate you getting back to me. I will apologize in advance for the video that will air in about 3 weeks as there was some low level noise- they were will up a street cleaner from the fire hydrant and you could hear it idling. I will look into a lav mic.

If you have the proper test equipment and can find the service manual, you could go through a tuner alignment- not the simplest of tasks if you have not done one, and that assumes the tuner is functioning somewhat properly. Of course, you could try a better FM antenna and position it for maximum reception.

Hard to say, but Ebay is a good guide for pricing

I ended up selling it on Craigslist for around $170- thanks for the inquiry.

Thanks for for letting me know they are working well- sure is a popular speaker!

Thanks for taking some time to comment. Maybe on day I will get a Futura 202 across the bench. I am pretty sure that I thought the 5000a sounded fine to me.....

Thanks for the comment- all the way from "Down Under" even. Am glad you still have the ones you purchased. The friend these belonged to refoamed them (prior to my getting them) and sold them at some point after the video came out. For some reason I have had a lot of comments on these recently- it is one of my most popular videos so I guess they have some what of a following.

w/out being able to see them w/out the covers, I would stay away from them at that price!

Thanks for the comment and info about the speakers priced each and not in pairs. Interestingly enough, just today my buddy Ian told me that the thrift store wanted a $250 EACH for a pair of Mach 1's that were in very good shape....

@@vintageaudioreview A fine choice. I hope they find a good home.

@@jaydee5156 That price is too much for them, we think.. probably will be there for a while.

Thanks so much for the encouragement, and a really like my QA analyzer(s). Will be going through using the QA analyzer to measure a preamp- at least how I do it- this week, though the video won't be out for a month or so.

Thanks for taking the time to share. I heard a similar thing about something you could plug into your router that made the sound better. And what about hi-performance toslink cables that improve the sound- that was another one. But, as part of the hobby, if you want to go for something like that and it works for you, oh well, just don't try to convince us 😀

I was able to get a bit more than 50w/8ohms with the stock 36v/6amp supply that came with it.

@vintageaudioreview Thanks for prompt reply. Which bookshelf speaker you will suggest in combination with this amp.. Q acoustic 3010i ( 75 watts per speaker @ 6 ohms at 86 db) Or Elac debut B5.2 (120 watts per speaker @ 6ohms at 86dp) Lots of love from India..

@@shankarvaigankar8116 I do not have a recommendation for speakers that I have not heard, of which yours fall into that category. My advice is always to pick a speaker that you like the sound of and find out what it's impedance and sensitivity are, and then find an amp that will drive that impedance to the levels you listen to. I think the Klipsch KG2's are a nice sounding Larger speaker to me. Maybe some Bose 301's- if you are able to find them. But listen to the speaker 1st rather than trust a reviewer except for technical info..IMHO

I am in Tucson. I would enjoy testing something like the SA-260, or is it in need of repair?

Thanks so much for the kind words. While I am not a very large channel, I don't think any other channel has the variety of items "reviewed". Hopefully I will continue to get gear to test....

It looks like a great amp- I wonder how it would test on the bench after all of these years..?

Am not familiar with the DAC you menioned. I would hook up the DAC to one of the AUX inputs (am assuming the other input to the DAC is a streamer) and see how it sounds to you. The sound should be the same regardless of the source- If you want to get monoblocks that is okay, but I am guessing the sound will not change a lot depending on how hard you are driving your speaker (if clipping starts). Thanks for the question

@vintageaudioreview ty for the quick reply

Thanks for taking the time to comment and maybe you can find one of these for a reasonable price!

Thanks for the question, Chris, and no, you did not miss me testing the tubes. I usually use a B&K 607 tube tester to check all of the tubes when I get something in that is not working correctly, or is in an unknown state, or if the tubes are in the incorrect spot. I am pretty sure I did check all of the tubes- I should probably mention that I did. I plan on doing a tube rolling video at some point and may actually show a tube being tested.....oh boy!

Thanks for the comment and observation. I went back and looked at several amps that had output transformers- mostly tube but a few McIntosh SS amps, and some had a bit of ringing- more with the tube amps. There is a frequency response test that uses frequency steps instead of a chirp- I don't think I have never used it, but will try it at some point when I get a tube amp in w/ a lot of ringing. Look at episode #123 around the 6:34 point where the Marantz 8B tube amp's frequency response is measured.

I am never that surprised by older gear since it was designed to last longer, I think.. thanks as always for commenting Douglas!

Thanks for the question & I think I can answer that. According to the schematic, there is an additional 36k resistor in parallel with the main 1 output (200ohms) , while there is not with the main 2 output. I believe the owner's manual states that the main 2 output can be used for lower gain amplifiers. Hope this makes sense, but for almost every one there would not be a lot of difference.

Thank you. I have heard of people adding resistors, but didn’t realize it came from the factory that way.

@@BrianJohnson-hg1ow You did not really have to add any resistor. I actually removed the resistor from Main output #2 on my C1. BTW, the C1performs as well as most every preamp I have tested. There is an upcoming video where I compare it to a "high end" brand preamp towards the end of the video.

I picked one up from eBay for under $200. The ad said it was fully functional, but I didn’t know what to expect. To my surprise, it literally looks brand new, all of the switches and controls work perfect, zero static or noise and it sounds great. If must have either been gone through or never used.

@@BrianJohnson-hg1ow $200 is a really good price for one. They are under-rated in the hifi world except by those who own them. The big thing is not to use it to turn on/off a high power amplifier using the switched a/c outlet as it's on/off switch is not really designed to allow lots of current through it.

As always, thanks for taking the time to comment Alistar. My guess is that the majority of vintage speakers were 8ohms and so the amps/receivers were designed for those more than 8ohm. Sometimes the frequency response may be better with 8ohms but the THD/SNR better with 4ohms or visa versa.

@ interesting . You know I have no electronic knowledge beyond basic dc circuits. But it’s still interesting about the ohm difference. Woudl that be due to circuit design or component choice?

@@ragnarhairybreeks It is just circuit design.

@ thank you

Thanks for taking a few moments to comment and I appreciate the kind words. There are one or two other videos that go into more detail about the circuitry. Hopefully you still have the 500t and it is working...

Hi Michael! What is interesting is I watched your video about replacing caps in the Sansui receiver and then saw this comment from you! I rarely listen to the headphone output, but most of the time the hum/his is ok. I don't subscribe to carte blanche replacing caps. I will do a video a bit like your about replacing the caps- before and after performance- but have not found a candidate for that yet. Keep up the good work!

@@vintageaudioreview Hi, I was in he no camp in replacing caps until really necessary but after just replacing half in the little Sansui 200 Receiver it has made a big difference. It would be fantastic if you did get a chance in doing a before and after results sound wise and especially with all the readings taken as well before and after. That way we could see what has happened. I for one hope you find a candidate. Keep up the good work to it all helps others I think.

@@MichaelYates Thanks and I am sure the right candidate will come along before too long- I would mainly replace power supply related caps- at least that is my thinking at this point.

You can search for the schematic online and use it to troubleshoot the EQ. Hopefully it is labeled clear enough as sometimes the copies are not great. If the ps voltages are ok then inject a 1khz signal and trace it with a scope to see where the distortion occurs- good luck!

Thanks for explaining what the level adjust does. I should have read the manual regarding it. Guess it might be useful if you had teenagers and wanted to limit how loud they would play....?

@@vintageaudioreview Absolutely.!

Protection against teenagers! ...if you don't tell them about it.

I am not a Hafler guy so really don't have an answer....

@@vintageaudioreview well ty anyway

I thought it had a nice sound- just don't like the balance/volume control situation. Glad you are keeping these older receivers around.

@@vintageaudioreview actually the way to use it is to push from the bottom using the fore finger , so it goes up in sync when voluming up. To lower use the pinky finger into the cutout wedge between the two controls to slide it downward... Then you become a pro!

@@essentialknowhow3752 Sounds like you figured it out. From a measurement standpoint it is nicer than having a balance control

@@vintageaudioreview agree...eliminates it effectively

No problem reading- don't really hear it being pronounced very often. Similar to the TECHNICS pronouncements I suppose

Hopefully they are able to sell them- they are definitely a collectable item

@@vintageaudioreview And they don't cost as much as the set advertised early in the video, much less.

I think the one I found for the video was quite a bit over priced

If you are politely telling me that you don't like the sound quality, the method you mention would not be as simple as that. One of the mics I use is a usb mic for the audio when I record data and the other mic is a boom mic mounted to my camera. I apologize that sometimes the audio recording is not as good- sometimes they pick up the A/C (or heater) coming on. I have only had 1 other comment- many months ago- about the sound quality.

@@vintageaudioreview Just trying to help. Leave yourself some more head room so we don't hear it clip. Better to have too low of a level recorded than too high. You can always raise the level in post production but you can never get rid of that clipping in post.

@@mikeh2520 Thanks for taking the time to help me improve. Is the problem more with me on screen or during data ?

@@vintageaudioreview I just dropped into the middle of it to check again and @13:47 and onwards, there is nasty clipping. If you have a visual indicator of mic level use that to get a better reference level. Your ears should be your best test instrument.

@@mikeh2520 Thanks for you input and I really only hear a slight amount of distortion, but will adjust the mic setting down on my USB mic. Thanks for the help!

Are you talking about the dbx noise reduction units, or the 3bx's? Most likely you got them for a good price which would make it even better. Thanks for sharing

@@vintageaudioreview dbx II 122 and 224x

@@adaboy4z The 122 is a noise reduction unit, not sure about the 224- some takes decks offered that as well as Dolby.

Thank you so much- It is a great tool and a bargain at the price.

Thanks for taking the time to comment. I like to say "dbx", though!

What a score!!! The remote is fairly rare from what I understand. Thanks for sharing!

😮

Amazing how ppl just dump these rather than sell or donate

Thanks for sharing your memory. I did not have the same memory when 1st seeing McIntosh gear- but that changed as I got into audio more in my later years.