Can a Amp be "timeless" and compete with todays amps?


I’ve been into hi resolution audio for 20+ years, well longer than that but acquired high quality gear about that time. I veered off into other interests for 15 years but still had my system sitting idle in it’s dedicated room. I became interested in it again 6 months ago and began to update it. I still have my Rega Planar 25 table and a Dragon phono stage.  I retained my CEC TL1 transport, but replaced my DAC with a Dinafrips Venus II, I also have the Hermes DDC which I feed my CEC into as well as my Cambridge Streamer. I sold my Genesis V speakers because they were having an issue with the left channel bass and since they were out of business I had no way to fix them, it was over my head. I found someone that wanted them and was willing to repair them himself. (he is very happy with them) I replaced them with some Goldenear Triton 1.r’s which I love. So here is the nostalgia part. I still have my VAC Cla 1 Mk II pre amp and my VAC Renaissance 70/70 Mk II amp. I feel they still hold up well sonically, so my thoughts are to send them both to VAC for the Mk III updates this fall of 2022, which includes replacing any necessary parts and "voicing" them back to new as intended when they were first made. I really believe these pieces are worthy of the restoration, are newer pieces today really going to make much headway? I cannot afford to replace these items with "like" items as I am retired and the discretionary income isn’t there anymore. I just feel like they are still really good and offer a very high quality sound. I mean 8- 300 B tubes can’t be all that bad can they? I’ve voiced the pre amp with with Telefunken 12AX7’s and I have a small stash of them. Tube sound is still great right?

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I second @lancelock with the vintage theater amplifiers. I have the little brother of the 1570B, the Ampex 6516 monitor amplifier, that was used to master the soundtracks of movies. Of course, it needed heavy bringing up to date to be used as a stereo amplifier, but all that is largely cosmetic as we are talking about adding modern connectors, and also about taking out the first gain stage (as the input was tape level.)

Mine had seen extra heavy duty in a movie theatre for decades, so a nice tune-up was already in demand. Not because of the heavy use (which it can easily take, as it was designed to be operated 10h a day, every day, for decades), but simply because of the age.

Compared to the 1950s we have drastically better capacitor technology, and a LOT can be done to optimize the internal wiring.

Few other mods done, which are modifications and not just "oil change": power tubes running in triode mode, separate filament transformer, the C input supply changed to CLC input, feedback loop drastically reduced (and then fully removed).

For those measurement savvy, I measured it with the minimal feedback (less than 1dB), at full power output (20W) the low extension was -1dB at 10Hz. I have not re-measured after taking ou the NFB completely, but I can report that the sound is way more dynamic, live, and bass much more 3D and grabbing than with it.

Now, back to the sound quality....

It's simply astonishing. It is as emotional, pure and human as the best examples of SET amplifiers are. They have produced the MOST LIFELIKE violin reproduction I ever heard from a stereo. Well, they clock the only instance a violin felt real from recording, in any system ever. (That is was not "close" or "almost", but the real deal.) That says a lot, as even most ultra high end systems reproduce violins in cat major or flat mouse E sharp, or plastic being shredded by sharp steel A keys...

So, it's a rare form from any amplifier of any age to do the most basic form of justice to violins. The venerable Ampex excels at it. Yet, not just that... I can listen to Karyyn - Jaina or Billie Eilish When I was older, and feel as if I'm transported to another reality... these songs contain high levels of subsonic information, and these babies can deliver it like nothing I ever heard. (Well, that might show my narrow-experence with HE systems boasting sub-20Hz provess... to tell the truth, we, audiophiles never listen to such material in our audio get togethers, so who knows really.)

So yes, I think "vintage" amplifiers are well and truly deserving of our attention, whether you are an UBER-fidelity fan (for life-like violin reproduction), or a hard-core rave party addict who wants to feel the marrow moving inside his bones (wants more than just a kick-in-the-chest...) 

 

 

 

 

Apologies if I duplicate other’s comments.

I think the simplest designs with solid components, whatever their strengths or weaknesses, have longevity, whatever your judgements are of their fundamental architecture or their particular performance. More complicated ones compete with successors’ evolutionary tweaks.

The other issue is that everything ages. There can be a multitude of performance changes that result from that, more or less amenable to intelligent maintenance.

OP, what exactly would be the problem if it WERE a hotrod job?  If you use "upgrade parts" [a relative term, I acknowledge], maybe you end up w/a BETTER sound that what it was originally...I say this because I am using an OLD Sansui integrated, slightly hotrodded [by someone else], driving some old Pioneers that are majorly hotrodded [by me].   WAY better sound; I sit and shake my head in wonder every time I listen to it.

But go w/whatever you like, obviously ~ just saying that ruling out upgrading something [like caps] might be your sonic loss>>>>>

I happen to have lots of vintage equipment and 10 integrated SS amps and 4 tube amps.I don't buy anything new.I like to find vintage equipment. I can't afford the new stuff.

My equipment is 15 to 66 years old. 
Most of my guests think it sounds spectacular. 

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