Pass Labs ALEPH 5 vs ALEPH 2

Thanks for all of the responses, I apologize for the confusion I caused, I originally meant to seek a comparison between the ALEPH 4 at 100 watts and ALEPH 2 also at 100 watts as Jshaw1004 alludes too. I am still not sure if I appredciate the difference.

Each outputs 100w into 8 ohm but 200w into 4 ohm for aleph 2 only. I believe aleph 2's have higher bias current and damping factor because separate transformer and separate enclosure for better heat dissipation.

Isn't the Aleph 2 160w into 4 ohms? (Not quite doubling down)

You're patly right, that's what was shown in service manual but doubling down shown in my owner's manual. Based on its circuit, more likely 200w for 4 ohms. If fact Aleph amp is so good that I'm going to diy myself after the parts and enclosure arrives.
OTOH, rule number one, you need the speakers on the efficient side in order to appreciate how good Aleph is because its full-time class A and single-end/2-stage design.

Cdma, I heard a while back that getting a bigger power transformer was a help for the Aleph P pre (which I use to drive the 2 monos). Any truth to that, and if so, is it cost-effective? I don't really need to open a can of worms for myself or anybody else, however! Thanks.