AVS Special Member
Join Date: Jul 2003
Location: Silicon Valley, CA
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It seems like noise floor can be a significant issue with these high-sensitivity speaker designs.
I'm not defending this stack as sensible :-), but I was running an unbalanced miniDSP with an iNuke3000DSP (not using the internal DSP, but the amp is the DSP version), connected to the pre-outs on my Onkyo 805 and the hiss was audible from the listening position. It was annoying.
Then I built a passive crossover for that speaker and connected it directly to the 805. The hiss was reduced to a reasonable level, but there's a lower frequency hum/buzz that is on the edge of audibility from the LP (though the rest of the room isn't quiet enough to be a major bother at this point).
If you can, I would audition before you commit to an amp purchase, to check for noise.