markjaspi:aliEnRIK:
Unless im missunderstanding this, I disagree with festings advice
The amp should be set to 4ohm. If its kept at 8 ohm theres a good chance the amp will cutout as its not enough power to drive the speakers at certain frequencies
Bose speakers run better at 8ohms, their literature states they are suitable for 4 or 8, my understanding is that 4 ohm speakers are harder to drive than 8 ohm speakers.
Yamaha 667 spec states;
Dynamic Power/Channel (8/6/4/2 ohms) 125/160/190/230 W
Which I would read as harder to drive, maybe I am wrong,
maxflinn maybe able to shed a little light on the subject as he has just been through all this with his new speakers and amp.hi mark, rick has suggested to me to set my as-500 to 8ohms for the time being and only change it to 4ohms if i see any sign that the amp is struggling, as ive just said in another thread i think this advice may be more relative to my current setrup and the minor issues that ive had and not general advice re. 4 ohm speakers. so as far as the op is concerned i'm not sure i can be of any help...
and strapped, -10 is nothing