90 db efficiency is +/- this or that, pretty efficient, at least not inefficient.
I might try to go less power, more affordable choices, even tubes, and pick an amp that can be used both Stereo now and as a mono-block to add power in the future if desired.
I might try to go less power, more affordable choices, even tubes, and pick an amp that can be used both Stereo now and as a mono-block to add power in the future if desired.