Just thought I'd pop up some info on something I've just installed. I did a little search and couldn't find any mention of this yet. Basically my amplifier is installed in a very snug space and gets very hot.
Pic
So I had little look through the interweb and found a fan setup that can be mounted to the tv cabinet and would monitor and adjust the temperature in the cubby hole where my amp sits.
I found this.
http://www.amazon.co.uk/gp/product/B005ZIR13Q/?tag=cliospnet01-21
Basically it's a mounting plate with 2x 120mm fans and fan controller with thermostat and power adapter.
Looks like this when installed.
So far doing a fantastic job at keeping things cool, it allows you to set a high temp where the fans will kick in until it drops to a low temp that is set.
Hope this is of some interest to someone.
The parts included in the one I bought can be purchased separately so it's probably possible to buy some bits like the mounting plate and fan controller from coolerguys, and other stuff needed elsewhere to do it a bit cheaper. The fan controller can accommodate 4 fans.