Moving from Pass Labs Aleph 5 to Aleph 2

if 60 watts doesn't cut it then the 1.5db increase the 2's offer will not dramatically improve the sound. save your $ and enjoy the music!
I believe the only thing that the 2's will improve is slightly better control of the drivers. period.

More power good. More channel separation good. More heat dissipation good.

The mono Aleph 2s will perform slightly better than the stereo Aleph 5. The increase in power will be hard to discern, but you should notice better stereo separation and somewhat more clarity as the amplifier won't have to work as hard. On the negative side, the 2s take up twice the space, you may have to rework your interconnects/cables and the 2s will definitely produce more heat as well as consume more electricity. Personally, I don't think the sonic benefits would be worth the added costs, but I could easily see where others would disagree. Best of luck.

I was using a pair of Aleph 2's, Aleph P, and some home made speakers, I know this is going to sound wackey but I switched up power cords and interconnects and I could not tell the difference between any of them, I switched between, XLO, Audioquest, Tara interconnects and Black Mamba Power Cords. What did make a difference is when I switched to XLO Type 5 speaker cables, they were the match my system needed. I thought the XLO Type 5 that were Heavy guage copper cables with Teflon were FAST and brought out an excellent bottom end. Wish I still had that system