AIRCOM S9, Quiet Cooling Fan System 43 cm

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.

A brilliant piece of kit. I was using a laptop fan before but this is in a different class. Beautifully built, all metal. Fans are very quiet. Can be programmed to automatically come on when the temperature rises and then it goes off. Please note you do need a us to UK plug adapter as this comes direct from the USA. I'm very satisfied.

Recently I noticed that my Marantz amplifier was getting hot. Marantz suggest that inch clearance is given at the top of the amplifier or use a fan. Since I'm unable due to space to provide the recommended clearance I opted to go for a fan solution. The AC Infinity works perfectly; cooling the amp with very little noise. Easy to install and use, with good documentation. Also came in a well padded box. I have it currently set to SMART mode. In this mode the fans start when the temperature reaches around 88 degrees F (31 Degrees C), then shuts off below 84 degrees F (29 Degrees C). The fan speed increase every 2 degrees above 88, but currently it have not risen above 88, and seems to be doing a good job at cooling. The S7 is smaller than the amp, may be the larger unit would be better for looks, but it is almost double the price of the S7. My unit came with UK plug power supply, so I did not need a US to UK adapter as others have stated. At low fan speed, I can't hear any fan noise. The unit when sat on top of the amp sucks air through the amp in the direction that normal convection cooling occurs. This is correct as you don't want it to blow air into the unit against the follow of the rising heat. So far the unit is performing perfectly. I wish Marantz had designed the amp with a built in fan!

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.

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

I don't know how I've managed to get by without one of these for so long. Absolutely essential if your AV equipment is inside a cabinet. It automatically turns on when the temperature gets too high and goes off when it has cooled the area. It's very quiet on the low setting. It makes a slight noise on the higher settings but it isn't noisy at all.

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?

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.

wie gewohnt schnelle Lieferung, Sehr gut verpackt. Gerät wirkt Hochwertig und ist auch dementsprechend gebaut. Einfach zum Anschließen da das Kabel fix verbaut ist. Schalttemperatur ist auf 88 Fahrenheit ( entspricht ca.31°C) eingestellt. Könnte etwas höher sein, lässt sich nicht ändern - steht auch in der Produktbeschreibung. Funktioniert auf meinem Yamaha Receiver einwandfrei. Wird nicht mehr heiß. Wirklich tolles Produkt.

Tem um bom tamanho, silencioso e funciona muito bem!

Works like a charm. I'm using it for almost 6 months and my amplifier is enjoying a cool and steady airflow.

Solved my heat problems right away

Ordered from The supplier “International Store” on Amazon. Good delivery, followup and Customer Service. The product AC Infinity S7 is an excellent device perfect for my requirement to join the 4 x S5 fans from AC Infinity to cool my beastly Denon AVC-X8500h despite the Denon having 4 internal fans in the monolithic amp section. I customised the fans based on the internals of Denon X8500h. Yes, It is bit if an overkill. I prefer to pamper and treat my quality electronics like any living thing. All AC infinity products i have purchased so far have fantastic build quality, beautiful minimalistic appearance and solid functioning so far. The S7 came with a charger with AC input voltage rating 100-240v which means there is no issue using it in India. Satisfied with everything so far. Can not comment on the longevity yet. However, i am confident that the fans will last for years to come judging by the build quality. Update: The Fans have been running nonstop these past 2.5 years without issues except for the charger that went kaput after 18 months of nonstop use. But the replacement was cheap(Rs.200)and easy to find as the Tatasky Set-top box original charger is the same one.