Here is a link to a similar one. Same case, slightly different build:
Pass Labs Zen Amplifier - Price Reduced For Sale - US Audio Mart
150$ is less than all components with the chassis price.
Give to chokes some physical distance from psu transformer.
Chokes on toroids not the best solution imho..easy to modify.
Well it looks the same, $150.00 is a steal - as long as it is working and indeed came out of Pass Labs, worth the money just for that fact.
Probably one Mr. Pass made from short series of 25 pcs. Zen's you can read in article " Return of Zen "
https://firstwatt.com/pdf/art_zen_redux.pdf extract:
" TM. Since writing the article I have had an opportunity?to build another 25 copies of the amplifier,
listen to it on a larger variety of loudspeakers, absorb criticism from the readership, and generally meditate on the project. "
🙂
https://firstwatt.com/pdf/art_zen_redux.pdf extract:
" TM. Since writing the article I have had an opportunity?to build another 25 copies of the amplifier,
listen to it on a larger variety of loudspeakers, absorb criticism from the readership, and generally meditate on the project. "
🙂
The original Zen amp needed a quiet power supply or there was buzz. I ended up with a regulated supply. CLC was another option but not quiet enough for my speakers at the time.
Here are pics for ZM.
Here are pics for ZM.
Attachments
It has collected some dust.....can it still play?
Is there any relation between theses Zen amps and "Zen Mod"?
I joined long after the "Zen period"......
Is there any relation between theses Zen amps and "Zen Mod"?
I joined long after the "Zen period"......
well, entire ZEN series of amps is made as (unconscious) anticipation of Zen Mod's arrival in Papaland
things were too serious around, so I'm simply Omninecessity (besides being Omnipresent, Omnipotent ..... in short - Omnieverything)

things were too serious around, so I'm simply Omninecessity (besides being Omnipresent, Omnipotent ..... in short - Omnieverything)

It has collected some dust.....can it still play?
Yes it still works, but things have advanced quite a bit and with just a few more parts things get much better, thinking ACA 🙂
Last edited:
150 greenies is more than correct price - for parts only
and in case of confirmation that it actually is made with Papa's hands, it can be priceless
so, go and snatch it, see for confirmation later
and in case of confirmation that it actually is made with Papa's hands, it can be priceless
so, go and snatch it, see for confirmation later
and in case of confirmation that it actually is made with Papa's hands, it can be priceless
And that is the issue. If it was just someone's build, I'll pass on it (see what I did there?), but if it was Papa's build, I'd skip work and go get it.
Wizard's Assistant is most likely having better memory than Wizard himself, from various reasons, some of them being topological, some logical
besides , Wayne is substantial part of PL DNA, while we at that subject
besides , Wayne is substantial part of PL DNA, while we at that subject
It really looks like a genuine experiment I recognize all the parts. How it got out there is a mystery.
- Home
- Amplifiers
- Pass Labs
- Help With Provenance: Pass Labs Zen