Which is more efficient and requires less power?

Thanks, Duke. I've only shopped once at Bust Buy. Everything was paid in $1 bills.

I'll email you privately regarding the amps in question, if you don't mind.

Would it be beneficial to double the 6 ohm nominal impedance to 12 ohms via Zero Autormers, in your opinion? Or, is this unecessary if the amps have 4 and 8 ohm taps and/or high current delivery?

Tvad, I think it's very unlikely the Zeros would help with a solid state amp. With a push-pull tube amp I'd guess somewhat unlikely but still possible. I have customers using Zeros with their push-pull tube amps, but the speaker load is an unusually difficult one (fullrange electrostats).

Feel free to e-mail me. I've had intermittent e-mail trouble lately so if you don't hear back from me in a reasonable amount of time try again or post a message here.

Duke

Thanks, Duke. I've emailed with some system specifics.