tweaking cooling fans

Does the manufacturer sell a fan noise kit that will help? Many projection companies do.

I would think that if the amps only get warm, you might want to consider running your amps without the fans.... I believe the reason why many amps come with fans (in particular 'pro' models) is so that they can be stacked in closed-in environments. We've all seen the local pub that has a stack of amps in a cupboard.

Slowing the fans down should be OK. The fans are designed to deal with continuous full power operation which does not occur with home audio use. I have CarverPro ZR1600 amps, and there is a low noise fan mod that is recommended. Reportedly these fans are almost inaudible. I bought the fans, but have not yet installed them because the amps are located in the cellar and fan noise is not a problem for me.

Well I picked up a bunch of potentiometers (3.5kohms).They do a fine job.If I slow them too much they load up.From my seating position they are almost silent.Thanx guys,