Now that I will call a reliable piece - Levinson preamp.
I have transistor equipment and cannot hear any difference after two hours of warm up, and the difference between one hour and two hours is small. This doesn't mean that others wouldn't hear or/and that I wouldn't hear it with other equipment. I don't leave the equipment on unattended, this includes overnight.
I have transistor equipment and cannot hear any difference after two hours of warm up, and the difference between one hour and two hours is small. This doesn't mean that others wouldn't hear or/and that I wouldn't hear it with other equipment. I don't leave the equipment on unattended, this includes overnight.