AC InfinityAIRCOM S9, Quiet Cooling Fan System 17" (43 cm) for Receivers, Amps, DVR, AV Cabinet Components

My Denon AVC-X4700H runs hot, almost disturbingly hot. My 4 ohm speakers only deliver 87db per watt so are a tough drive, and whilst my front speakers are driven by another amp, the AV amp still drives another 4 speakers and the subwoofer.The S9 has proved to be fantastic at reducing the running temperatures significantly and the auto temperature control function means you can leave it to its own devices which is a real plus. It turns on/off as required so no hassle there. It generally runs on setting one which is only just audible, but ramps up to setting 2 out of 3 under load.Overall I'm very pleased with it, its built well, looks good, and is well priced for what it offers. If you own a Denon/Marantz AV amp then these things are a great addition and the temperature reduction will likely significantly increase the product life from excessive heat wear & tear.

It’s very well built, uses an external AC adapter so should be a cheap fix if that fails, and it works brilliantly.I own a Denon AV receiver, and it was getting so hot that frying eggs on its lid would’ve been easy, it would probably have cooked the Sunday roast too!Since adding the AC Infinity, it’s fridge like cool, no matter how hard I’m pushing it. So if heats a problem with your component, add one of these and it won’t be.

First class , well built, does exactly what it says it will do , my Denon now running in a chilled environment and much healthier for it too. Have you not ordered one yet? This is a MUST HAVE item. Delivered rapidly with excellent support what is there not to like?

Keeps the avr from running too hot. Not the quietest option. Did not come with UK power adapter.

Fits nicely on top of my Marantz.Be aware tho, the unti only ships with a European 2pin power adapter tho.For UK, you'll either need a 2 pin to british plug adapter, or another 12v 1.5A power adapter with the right size connecter. Luckily i have a few old routers, and they're 12v 1.5A and the connecter fits fine, so used 1 of their power adapters for it instead.

This keeps my AV AMP cools and have been running continuously for over a year. Very well made and quiet upto setting 3.

Great product, does exactly what it says!Av processor stays super cool during hours of use. Highly recommend!

excellent service. I highly reccomend