Older PURE CLASS-A Amplifiers


I am looking at some older Pure Class A amps and am curious as to are they as good as some newer amps like the Pass X150, and which ones are recommended, and have they been compared to each other anywhere? Thanks much for the recommendations.

I am considering the following PURE CLASS A amps:
Threshold T-50
Monarchy Audio SM-100 Monos
Monarchy Audio SM-70
Forte Model 4
tpk123
Pass labs Aleph series have to be in there with a shout. As David 99 says, the Aleph 3 has to be one of the great power amps out there, not the most dynamic, but such a sweet, detailed sound. I have been using it into my Living Voice Avatars for 3 years. You need 50 watts, then there is the 5, I believe at 60 watts, or the 4 that comes in at 100, something for everyone
Classe DR3. Hands Down!! (Having owned many pedigree amps (McCormack DNA2, Jadis Defy 7 among others)
- A good old CLASSE DR3 VHC this amp is a small power house and deliver 45 WPC of pure classe A and it is reliable and sweet souding, weighting in at nearly 90 pounds....
Threshold SA -1 mono block power amps are my choice for great pure class a sound. Also the SA-2 mono blocks and even the stereo SA-3 amp. All of these amps are timeless and have incredible sound.
Hi,
I have two of the Lazarus highbird mark III amps and the Cascade Classic MKII pre amp.
The system sounds awesome. It is a work horse. I have it since 1993.

As for Greg. His last name is miller.
The last I heard about him was back in the nineties that he was planning to go to Japan.
Apparently, the high-end audio market over there liked his products.

I am looking as well for copies of the circuit for the above.

Thanks,
Jonathan