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
There are a lot of Class A tube amps too- any reason they are not on this thread?
Don't think you can get the Threshold SA-1 mono blocks for $1000, I've looked.
SA-3 would do, the Forte #4 is a good amp and you would have enough left over to get it upgraded be Jon Soderbreg.
You could even get 2 Forte #4 and biamp for your price.
Well, actually the 8008BB is not really class A, but it shares the same platform that its big brother the Palladium is based on and it's available used for under 1k.
Did somebody say STAX? I got a DA 300. A littal harsh on dynamic speakers. oh so sweet on ribbons & electrostatics. However I don't have anymore:( Anybody looking for some sweet class A amp?