I'm looking to buy a pair of Quad 11Ls for the front of my Arcam AVR300. Is this a sensible choice? I mostly listen to acoustic music at low/medium volumes so purity and detail of sound is important. Quad 11L speakers are rated at 6ohm. The Quad website states that although rated at 6ohm the speakers are suitable for use with 8ohm amplifiers. My other question is: What setting on the AVR300 speaker impedance switch do I choose for the best quality sound at low/mid volumes, 4ohms or 8ohm? Cheers Steven.