After looking more and more at Mr Pass designs, I find it amazing how he can get such amazing results out of a simple circuit compared to other topographies. One in particular I believe was a large value p bipolar w a large value n bipolar on the output as a single ended source. Being I have almost a bottomless pit of lfets and a few sanken bipolars. I wanted to try and take a shot at something similar or possibly 2 N value outputs. Can a 125w Exicon drive 2 250w Exicon with this type of layout? Has anyone tried a very simple 25-30watt lfet class A design?
Hi,
Things can be too simple, and only work by brute force and ignorance.
Peruse : Death of Zen - A new Class-A power amp for balance.
rgds, sreten.
Things can be too simple, and only work by brute force and ignorance.
Peruse : Death of Zen - A new Class-A power amp for balance.
rgds, sreten.
What I find completely amusing about that article is after all the ranting and raving and just when you are almost convinced he might actually have some level of creative thought, Mr Elliot basically copies the JLH circuit. LMAO
Zen V4, Zen 9, and F6 are far more interesting amps than that amp, and both F7 and F5 are far superior while also being simpler.
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Hi,
You Zen aficionado's are completely missing the point of the DoZ.
More hairshirt might be more "exotic" and "hifi hardcore" but
the DoZ is a perfectly acceptable and pragmatic approach.
That it ends up close to the JLH (which is based on the White
cathode follower) is no surprise, as you don't reject good
ideas just because you didn't think of them originally.
As for the Zen's being "brilliant simplicity", I don't think so.
rgds, sreten.
You Zen aficionado's are completely missing the point of the DoZ.
More hairshirt might be more "exotic" and "hifi hardcore" but
the DoZ is a perfectly acceptable and pragmatic approach.
That it ends up close to the JLH (which is based on the White
cathode follower) is no surprise, as you don't reject good
ideas just because you didn't think of them originally.
As for the Zen's being "brilliant simplicity", I don't think so.
rgds, sreten.
Correct actually asked this question after looking at jlh and plh. What kind of power output at 8 ohms can I get out of the duel dye Exicon 250w N channel lfet as a single ended output device? What if I used 2? I imagine the voltage would need to be increased as well as current but would it be the same gain of the single ended output or would some of the power be dissapated?
I'm an not totally versed on the Zen nor have I spent time listening to it. I do however admire simple effective designs that work horses and stable. As a 2A advocate an analogy can be made with Kalashnikovs. Sure a ton of more refined materials could be used certain things can be refined tolerances could be tighter buy if the elements don't rot away that cheap stamped sheet metal receiver you can find out left uncared for for 30 years shake the rocks out of the receiver, **** in it to clean it out a little bit and she will run. Even the zinc rivits were used so the rifle can flex in certain points as opposed to the standard of rigidity only adding to the durability and dependability of it and when American companies tried to make copies we tried using steel rivits only for them to break instead of flex. Sure it will never be a sub MOA rifle but it's simple effective and minimal part count and everything and material is there for a reason. While I am not versed in the Zen series I have spent a lot of time looking at AB and currently A topographies and would like to learn and push the envelop on every component used in my final designs, not mimic these circuits but use them as a case study for lack of a better term.
@ Sreten
Ok you don't think so
but what your arguments ?
Last Mr Pass amplifiers from BAF2015 was 2SK77B and Schade feedback Hockey Puck.
Two are not named Zen's but have only one transistor and CCS.
This new amps have triode curves , you see this on the scope, plenty of gain and nice damping factor.
50 watts single-ended amazing sophisticated minimalism topology style and First Watt F7 are another champion.
Best regards
Zen Master Pass San know they are not death anyway just step to new amplifier reincarnation life cycle before
ultimate audio nirvana
glorifying Zen series of amps is practically opposite of their concept and purpose
NP never said that they're blameless amps ..... more conceptual toys , with main purpose of learning
so , attacking any of Zen amps as not being perfect is complete waste of time
them - not being perfect - is prerogative
NP never said that they're blameless amps ..... more conceptual toys , with main purpose of learning
so , attacking any of Zen amps as not being perfect is complete waste of time
them - not being perfect - is prerogative
With adequate heatsinking you could probably dissipate 50W per double die exicon eg Vds of 25V and Id of 2A.
PLH which is more linear than JLH per dB of feedback, is not necessarily Nelson's greatest work in regards to Zen philosophy.
There are many other fine examples if not even better. Better technically doesn't necessarily mean more enjoyable though.
Worth putting together a shortlist of 3 amps.
Probably best to think about your speaker load, min impedance and sensitivity and decide which amp best matches that speaker load for your listening requirements.
best stated yet.. the entire series existed (seemingly) as a reason to disseminate the concepts/ideas so people could understand amp electronics and physics. How very charitable me thinks.. over the course of many many different amps and schemas. There's nothing to argue about actually because there was never a competition. Just ideas..
The training method of Japanese Zen Buddhists can be explained as following: Learn as much as possible, then abandon all the knowledge through meditation, so that one can touch the perfect deep insight “directly” without disturbance of the never perfect “logic” and “knowledge”.
This means that Zen is “logically” imperfect, but since the human logic is always imperfect, zen is illogically perfect. Double negative.
Then you would realize my explanation is logical, so it doesn’t mean anything for ZEN Buddhists, and this ultimate meaninglessness is probably ZEN.
PS: A book of the German philosopher Eugen Herrigel, "Zen in the Art of Archery" is a really good one for who is interested in ZEN.
This means that Zen is “logically” imperfect, but since the human logic is always imperfect, zen is illogically perfect. Double negative.
Then you would realize my explanation is logical, so it doesn’t mean anything for ZEN Buddhists, and this ultimate meaninglessness is probably ZEN.
PS: A book of the German philosopher Eugen Herrigel, "Zen in the Art of Archery" is a really good one for who is interested in ZEN.
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