I have pair of PSB B6 speakers. About 89 or 90db sensitivity min input 20w. Input sources Macbook Pro via HRT Dac (optical from Mac direct or RCA from HRT), Sony blu-ray player, Cable box.
Amps being considered:
Onkyo A-9555 ($300+)
Onkyo A-5vl ($400)
Yamaha A-S700 (used $350/new $800)
Yamaha A-S500 ($400)
NAD C326BEE or NAD C320BEE ($430 or $300)
Use in bedroom, not large. High volume not needed, but right power so low volumes sound their best.
Oh...my PSB speakers are 6ohm impedence, minimum 4ohm.
Need to keep costs down, down, down.