[rdclark]

On Oct 20, 7:08*am, "Mike S" wrote:
Set the receiver output to 4ohms for the speakers, this keeps the receiver a
little cooler.

Even if the TX-SR606 were rated for 4-ohm loads (which it isn't) or
had such a switch setting (which it doesn't), this would still be the
dumbest thing I ever heard.

If the receiver did have a 4-ohm setting and you used it with 8 ohm
speakers, all you would do is reduce the dynamic range of the
amplifiers by limiting the available current. This would make no
difference (either in heat or sound) at normal listening levels, but
it would compromise the sound quality needlessly when the system was
operating near its limits.