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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

Showing 2 responses by mfslgoldcd

mfslgoldcd
90 posts
 
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.
mfslgoldcd
90 posts
 
Look for the rare Pass Labs Aleph 0s (40W pure Class A)stereo power amplifier. This was one of the most natural sounding power amps I have ever heard. I am always looking for one ever since I heard the Pass Aleph 0s years ago. By the way the Pass Aleph 0s is one of Nelson Pass's favorite amp of all time. I talked with him for about an hour one day and he told me if you can find a Aleph 0s make sure you grab it.
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