Will leaving an amp powered-up all the time...

I have a Pass X-350. How do you adjust the bias.

Thanks Audphile1.I will try it out.I never thought that a signal must pass thru in order for the amp to sound best.I thought the small voltage is passing thru from the preamp to the speakers anyway.

I tried the " leave it on" for a day or two but all the amps I have from Krell 400xi, Parasound Hca 1000a, Bryston 4bsst seems sounds softer, warmer, more open but lacking of " edge" or sharp details and I really miss that . In my set up, I find it is best to have 30 to 60 mimutes warm up before playing any sources.

After many years in this hobby I don't see that leaving an amp on all the time provides any benefit vs. turning off if not listened to for extended periods. My solution is to turn on and off during the week if I listen in the evenings only and leave on during the weekend when I will spend more time listening. Also, I have never had an amp or other components go bad because of cycling off and on; I think the fear of premature wear, is highly overrated and unsubstantiated.

I'm with Stevecham. Also if a amp manufacture is stating to keep a amp on all the time to sound their best, then it's a crutch and design flaw IMHO, I'd stay away. There are plenty of amps that sound great upon turn on.