Bass leaves after amp warms up?

"04-20-13: Csontos
Quiescent current is higher when the amp is cold and decreases as it heats up whether the outputs are mosfets or bi-polar. But more so with mosfets than with bi-polar outputs.
Csontos (Threads | Answers | This Thread)"

Not so with the two powerhouse ME850's I have here, both are at 20mv accross the emiter resistors 12 per channel when cold and by 20mins they have climbed and stablized to 50mV. My bass is ultra tight but 2 dimential when cold then it looses precieved tightness for a more 3 dimentail bass when warm. I believe this is what's happening to the poster. Or his supply is sagging as the bias climbs if it goes up like mine as it's warming up.

Cheers George

Fishing716: I just looked at the internals of your M6i amps on Google images and I must say for a 200wrms per channel amp the power supply does look a bit on the thin side to what I would like to see, esspecially the amount of storage caps. And a single dual winding transformer for such a high power rated amp should really two tranise of the same size. Suggest you try another amp to see if fixes your problem.

Cheers george

http://www.me-au.com/html/me850hc1.html

Cheers George

Fishing716. What I believe is happening is that when the amp is cold the bias is naturaly low, this does not tax the power supply as much as when the amp has warmed up, and the bias is at it's max adjusted setting.
However if the power supply is not up to the task it will sag on bass transients more when the amp is warmed up than when it's cold. As the bias is asking for more current when it's warm than when it's cold.

Cheers George