AC Infinity AIRCOM S10, Quiet Cooling Blower Fan System 17" Front-Exhaust for Receivers, Amps, DVR, AV Cabinet Components

** EDITED REVIEW MAY 7, 2022: After using for 1 year, the Aircom S10 continues to impress. I did make one change, however, to the settings below. The change was to set the device to Mode=Auto/Fan=Low. The reason for the change is that I kept forgetting to turn the fan off manually when set to Mode=On/Fan=Low. I also had the occasion recently to check for dust build-up, and I am happy to say the amount was minimal - the fact of which I attribute to the low fan speed setting. **MODEL PURCHASED: S10 (w/front exhaust)COOLING SETTINGS USED: "Mode=On/Fan=Low"TRICK TO GET FAN SPEED LIGHT TO TURN OFF: Press and hold Mode/Power button (far left while facing unit) for 3+ seconds, then release and wait a few seconds for fan speed light to turn off. When the fan light is "Off" it is truly invisible behind the faceplate bezel, as you can easily see (or not see!) for yourself in the attached pictures.MODE/POWER LIGHTS REMAIN ON: The mode lights - which double as "Power=On" lights - will remain lit depending on mode selected. However, they are not overly bright. In my case, using the "On" mode, only the very tiny white light remains lit. I did not find it distracting.TRICK TO TURN UNIT OFF: Press and release the Mode/Power button to cycle through the modes to reach power off state. In my case, 4 presses are required to reach power off state.AMP USED: Twenty-plus year old NAD 906 Multi-Channel Amplifier with three separate (and very large) power supplies, and six discrete/bridgeable channels. The NAD 906 amp was advertised as having "high quality, high temperature" components. Inside there is a lot of chunky metal, so to speak, that not only produces its own heat but also holds any heat around it. Most significantly the amp has no fans, which is a tip-off it was designed and built for consistent performance at high levels of heat. However, when considering the massive amounts of chunky metal inside, it is clear that the 906 would shed heat very efficiently with any kind of increased air movement across any of the metal, especially the large heat sinks.AMP DUTIES: 4-channel Atmos/DTS-X amplification of "Dolby-enabled" Height 1 and Height 2 speakers line-out signals from NAD 758 v3i receiver. (Note: On the NAD 906 amp, I employed two channels on far right of chassis and two channels on far left of chassis to widen heat distribution/dispersion.)AMP PLACEMENT: Cabinet shelf, two 2" holes in cabinet back cover, open front, no other electronics in same shelf or above/below.SEE BELOW for AMP TEMPERATURES at VARIOUS AMP STATES (Note: Measurements taken at center/top of amp cover, and room temperature is 75f average):With Fan NOT In-place/NOT In-use (i.e. prior to purchase):77f - Amp Off (TV, lamps, and exterior wall by cabinet create ambient heat increase 2f higher than room average)94f - Amp On/Idling, RCA inputs from receiver not active111f - Amp On/Idling, RCA inputs from receiver active but w/no signal (strong "Class A" bias?)120f - Amp On, temp after 140min movie w/Atmos content ("Ready Player One")With Fan IN-PLACE/IN-USE but removed for measurements AFTER MOVIE:77f - After movie, amp immediately turned off, fan immediately removed, amp temp immediately measured after 140min movie w/Atmos content ("Ready Player One")85f - Amp left off, fan still removed, and temp measured after 20 minutes86f - Amp left off, fan still removed, and temp measured after 40 minutesPERFORMANCE/TESTING CONCLUSION: The AIRCOM S10 performed beyond expectation, using low and quiet air flow to keep my amp at 77f while in normal use, which is as cool as it is when powered off. To give some credence to the above active cooling effect's astonishing measurement of 77f, you can see from my other measurements that the heat increased (as expected) after the amp was off and the moving air's wicking effect was removed. Still the amp's heat had only increased to 86f after 40 minutes. I am confident leaving the fan on for 5-10 minutes after the amp has been powered off would wick away most if not all the residual heat from the sinks. To be fair, the amp is not cluttered inside, has enough slits in the top and bottom shrouds to easily call them screens, uses very large heat sinks that allow for amazingly quick heat conduction, and the movie was not overly loud.OPERATIONAL TESTING/CONCLUSION: I did not want to wait for the amp to reach the mid- to high-80's before the fan would automatically turn on, so I avoided all of the S10's automatic settings. In my testing, and now ongoing use, I decided to just manually turn it "On" at its lowest setting (which is very quiet) when I started watching a movie, and thus it would always stay many degrees ahead of the amp. Said another way, by turning the fan on at the same time I begin using the amp, the fan would not have to "play catch-up" with the amp if the amp had been allowed to get hot, first. I work with huge servers in datacenters (and have my own computers) and, in my opinion and based on experience there is no real benefit - aside from convenience, which will understandably be the winning feature to others - to waiting for a fan to do its job later rather than sooner. Now, what I will do differently in the future - distinct from my measurement process above - is let the fan run for a little while after the amp is turned off.VALUE CONCLUSION: With over 20+ years under the belt of my NAD 906, the AIRCOM S10's outstanding ability to remove heat from that hot-running amp will only help it remain stable and useful longer than otherwise. And the cost of the AIRCOM S10 is far, far less expensive than buying a new amp of similar quality.

Weve used these for equipment rack on commercial sites, I use them in my home av cabinet and one actually sits on its side to cool my fridge soffet that gets so hot without it.The cooling fans are quiet but moves a lot of air. The HIGH/MAX setting can get a little noisy.It will remember the last setting after power faikure. Will buy again.

I recently remodeled my house and my wife insisted that I put all the AV gear behind a closed cabinet door. I negotiated to have a rattan mesh put in front so that the AV gear could ventilate, but it was still getting pretty toasty in there after about 30 min. I installed the forward venting AC Infinity blower in Smart Fan mode and it has been running quietly and the inside of the cabinet is super chill! No worries about my receiver overheating now!

Works just like it should. Set it on top of my Denon AVR and it powers itself on whenever the receiver is getting warm and off once it's cooled down. Fits perfectly on top of the receiver. It's so quiet that you'd have no idea it was running if it wasn't for the light. You can disable the light in the setting too but I like to know it's working and I don't notice the light turning on and off during movies. I usually only notice the light while listening to music. I got the front exhausting version and I could not be happier. I'm plugged into a Furman power conditioner with the charging brick. I have not tried using a USB or any other connection. Very happy with this purchase.

Keeps my AVR cool. It’s a little noisy at times, I’m sure the fully variable speed unit is much quieter. This unit steps the fans up and down, and sometimes this can be somewhat pronounced.

Only had it a few days but...exactly what I was looking for. Well built, quite, perfect for what I needed.

Had some custom built-ins done in my home and therefore, the receiver was placed inside a shelf with zero air flow other than what can naturally vent out of the front. I thought that would be enough until of course, the Roku device after 1 hour of watching threw up a overheating message on the TV screen. I knew from then I had to do something so researching led me to this item with good reviews.Fast forward a couple of days for shipping and it arrived to my house. Took me all of 10 minutes to unpack and get it positioned on top of my receiver. Now, not only have I never received another heat warning but the receiver after hours of watching my home theater is actually cool to the touch. This is a must have and one of my best purchases. 10 stars!!