Why are you assuming it's the amp? I've had one powering B&W N803's for about 15 months and other than warmup its performance has never changed AFAIK.
You might try a demag CD like the one made by Ayre. We run it every couple of months. It cleans our system up and brings the life back. For vinyl the Cardas sweep record has an even larger beneficial effect, depending on the cartridge. Some react more to it than others.
You might try a demag CD like the one made by Ayre. We run it every couple of months. It cleans our system up and brings the life back. For vinyl the Cardas sweep record has an even larger beneficial effect, depending on the cartridge. Some react more to it than others.