If it's solid state leave it on if you can live with wasting, and paying for, the energy. At normal operating temperature a healthy unit ought to perform more closely to its intended purpose. Thermal cycling (on and off) appears to accelerate the decomposition of electrical devices. So it's up to you, pay the bigger electric bill when it comes or the tech to replace the failed components, IF they more quickly fail. Hey, my stuff is on 24/7 except if I leave town for a while.
Is it ok to leave the amp on?
I just bought a Belles 150A three channel amp (used thru this site). I am considering placing on top of a wall unit (due to space problems). This unit does not have an auto-on feature so I would need to leave it on most of the time.. (except when going out of town etc..) What is the general opinion on this.. and is this manufacturer sensative?