bryston warm up time

I agree w scrowley. Any SS amp should be ready to go in no more than 15 minutes. And if you have a power conditioner with a meter, you can tell when that is because the idling current draw settles down and stops fluctuating.

As for thermal stabilization, that's very nice but not really necessary for a SS amp (especially full Class A) to perform at its best. And unless the listening room's temperature is kept constant, the temperature at which the amp stabilizes will keep changing depending on the room temperature.

Scrowley also makes a good point about the caps. They might be taking longer to fully charge. However if the amp is still in warranty (20 years transferrable for Bryston), I'd suggest you send it in for routine service anyway. What's a little freight!?

Raquel is right . Real world situations , I have found at least an hour .

FWIW I never found Bryston to 'warm up'.

Sorry, someone had to bash them....

I used Bryston for years and found that they are best left on or warm them up for about 10 minutes before you use them. I would check your speaker connections just to make sure they are tight.

Further to my above post, I had a Bryston 4B-ST for six years. I left it on 24/7 except for electrical storms and times when I would not be home for a week or more at a time. When I would power it up after such down times, it would take a day to reach full performance.

Assuming the amp is used in a revealing system (and that is an assumption here), I am not aware of any solid-state amp, not even an amp with a stand-by function coming out of stand-by (my Rowland 6's, for example), that will sound completely right until it's been running at full idle for two or three hours, and this is the exception. It can take a very long time for caps to fully charge and for the unit to fully come up to temperature.

If a person is not hearing the difference between a solid-state amp that's only been for a very short time and one that's been on for a few days, some limitation elsewhere in the system is the cause (or all that time he/she spent on the firing range shooting clay pidgeons before getting into audio ... :) ).