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In Reply to: RE: Are there any better SS class A amps for under $2000... posted by fstein on April 06, 2016 at 11:41:08
I had a Pass Aleph 3. Intoxicating, but not able to push quite a range of speakers in any decent sized room.
You can get a used Pass X-150 for just under 2k, and it's a horse (also made later than the Aleph, so capping is more distant).
After a run of amps: Dyna Mk III, SAE 31B, Dyna 410, Dyna 416, Threshold Stasis 3, Pass Aleph 3 over ~20 years, I've stopped looking for about 15 years after I got the X-150 since I don't need anything better.
It's run ML SL-3's, Verify Parsifals, ProAc Tablette's, and Triangle Celius 202's with nary a burp. It just missed a pair of ML CLS IIz's but a friend drove those with an X-150 and it was just fine - however his Aleph 5 did not do very well with the ML's, so he got an X-150.
Follow Ups:
that model is not class A per original request.
The X-150 runs pure class A up to 50 watts - well in excess of what an Aleph 3 can put out, and then goes up to an over 150 at A/B. Sorry that's not going to do it for you.
unfortunately, that is an overly optimistic view. :)
It leaves class A around 10 watts per Pass Labs . The point five version is but an improvement over the original.
I spoke with the people as PASS as I own a X250.5 and it runs CLASS A to about 25 watts, then AB....But with my Wilsons I hardly ever go into AB mode as they are stable and pretty efficient.
I would wager a guess you are exceeding 25 watts on dynamic peaks not on RMS usage of course ....
If I turn it up loud. The meter on the front is for when the amp goes from class A to AB. I very rarely go past that line. Only when I'm on a tear...That's with the Wilson's. When I had the revels hooked up they sucked up the power...
...and know from the source
As do I with the embedded link to the Pass Labs website with the exact specification!
If I remember correctly,there is/was a Symphonic Line RG-1 MK 3 popped up on AudioGon.
100 wpc class A.Sweet amp,dynamic and good tonal balance.Had both single-ended and balanced inputs.
Tom:cat
I have been very, very pleased with a pair of Monarchy Audio SE 100 MK2s that run mostly in class A.
I have other amps for my ESL 63s, but find myself coming back to the Monarchys every time I change amps.
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