Yamaha AX-497 to PSB T45 ohm/impedance setting?

[rcb020]

I recently bought a Yamaha ax-497 integrated amplifier and my PSB t45s are coming in tomorrow. I'm using my pc-Foobar2000 as the source with a Styleaudio Carat HD1 usb DAC/Headphone Amp (Not the best DAC I know but this is a budget system and it drives my ATH-AD700s pretty good.) Output from the dac goes to cd input on the amp (reason for using cd rather than aux is cd is gold plated, better sound quality?) The T45s specs show 6ohm nominal and 4ohm minimum with recommended wattage between 10-150. My real question is what ohm setting do I use on my amp, 8ohm-85 watts RMS or 6ohm-100 watts RMS? The impedance selector to the LEFT states AorB: 4ohm min/speaker, A+B 8ohm min/speaker. And to the RIGHT AorB 6ohm min/speaker. My guess would be to the LEFT since the T45s are 4ohm min and I'm only using the "A" speaker outs??? Sorry if I just wasted your time Thank you for any help and advice.

 

[3db]

I recently bought a Yamaha ax-497 integrated amplifier and my PSB t45s are coming in tomorrow. I'm using my pc-Foobar2000 as the source with a Styleaudio Carat HD1 usb DAC/Headphone Amp (Not the best DAC I know but this is a budget system and it drives my ATH-AD700s pretty good.) Output from the dac goes to cd input on the amp (reason for using cd rather than aux is cd is gold plated, better sound quality?) The T45s specs show 6ohm nominal and 4ohm minimum with recommended wattage between 10-150. My real question is what ohm setting do I use on my amp, 8ohm-85 watts RMS or 6ohm-100 watts RMS? The impedance selector to the LEFT states AorB: 4ohm min/speaker, A+B 8ohm min/speaker. And to the RIGHT AorB 6ohm min/speaker. My guess would be to the LEFT since the T45s are 4ohm min and I'm only using the "A" speaker outs??? Sorry if I just wasted your time Thank you for any help and advice.

I've got a entire suite of PSB Image series built around the T45s as my HT which up until recently was driven by a Technics recevier. I left the recevier impedance switch alone. It really depends on how big your the listening room is and how loud you want to play them. Although tey may dip down to 4 ohms, they have a high sesntivity and it doesn't take much turning on the volume control to get them to play loud. My ears gave out before the receiver or the speakers gave out, that in a room that was 12 x 16 with a 7.5 foot ceiling.