AC Infinity AIRCOM S9, Quiet Cooling Fan System 17" Top-Exhaust for Receivers, Amps, DVR, AV Cabinet Components

Got this one because it was cheaper than the one with the temperature reading. I figured I need the Aircom S10 because my AVR is in the entertainment stand, and has been getting fairly warm. Ever since I put this on top of my AVR, it blows nothing but cool air. This one also has an auto feature and all you have to do is plug it in to the power strip; very easy to install! It will turn on, off, and adjust the fan speed automatically. It looks sleek and is pretty low profile. This product is also very quiet at every level, except for the max setting. It does such a good job that it doesn’t need to go that high, and it’s not loud enough to hear over your movie/tv show anyway. Your HVAC unit will probably be louder than this fan.

** 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 active 111f - 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 minutes 86f - Amp left off, fan still removed, and temp measured after 40 minutes PERFORMANCE/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.

So far I'm liking it! It's working great, so far, to cool my Denon receiver. The 2 fans are turning on and off automatically as expected (on when enough heat is detected and off when not enough heat). It's not totally silent, but it's pretty quiet, and I can't hear it from my normal seating position (at low fan speed which is what I use). Installation was easy. Configuration was easy. I configured it so that the only sign of life is a small orange LED. I turned the fan speed indicator off because it was a bit too bright. Check out my photo... but ignore the dust. Pretend it's not there.

Has a small footprint, takes up little space, and cools rather efficiently. I bought this cooling fan for an upcoming receiver upgrade. Before I placed it own a new receiver, I placed it on an approximately 12-13 year old 7.1 Yamaha receiver that needs a break. I keep my living room at 75° F, and the receiver sits in a recess without an open back, so it does create some heat. This double cooling fan removes warm air straight up, and I may need to get another one that removes air forward and use this one for a pre amp associated with the system. The controls are simple. I don't need to know the exact temperature, so this one works for my needs. I set it on automatic, and it comes on and turns off, changes between 4 fan speeds, shows you what speed the fan is on, and does a pretty good job of removing the warmer air from the receiver er. I don't mind that the fan speed indicator is bright. I may just put a round piece of black tape over it. Even still, it isn't so bright that it distracts from the image on the television above. The fans are not at all that loud, even at the highest speed. It is priced more than I initially wanted to spend on it, but in the end, I could have more spent more on an equal quality cooling fan. In the end, I didn't have to build a cooling fan module, that could have been cheaper or more expensive.

This is a good product, but I knocked one star due to the fan noise. I've actually purchased two of these. The first one was a few years back & it performs great. Very quiet. however, the one I purchased a few months ago is noticeably louder than the first one I purchased. It's not crazy loud, but it's too bad it's not as quiet as my first one, which is whisper-quiet when on its lowest level. So, just be aware that there may be significant unit-to-unit variance when it comes to the noise level. I use this for some headphone amps that I have (e.g. Schiit Mjolnir 3), and it works quite well in keeping things cool. I like that this model has the rear exhaust, so I can still stack some things on top of the Aircom if needed. I like the different modes that it has; I use Smart mode most of the time: - On mode: this run the fan at a consistent speed of your choosing. there are 4 different speeds - Auto mode: the fan only turns on when it senses a temp of 88F & it turns off the fans when the temp is 84F or lower - Smart mode: the fans change speed based on the temperature. for every 2F increment that the temp is below 88F, the fan speed will decrease by one level. You can choose to run it consistently at one of the 4 different fan speeds, but there's also fancier settings that automatically adjust the fan speed based on the temperature.

I heard about this from a Skylabs Audio (West Des Moines, IA) video on You Tube: "9 Vintage Stereo Upgrades You Didn't Know About". The unit is exactly what Kevin described in his video, works perfectly, and it does an amazing job. I have a 1977 Technics Receiver which was reconditioned and rebuilt by Skylabs. The receiver produces a bit of normal internal heat as it operates, but nothing excessive. Per Kevin, heat can shorten the life of vintage units such as this, so purchasing the basic AC Infinity fan made sense. It is VERY easy to set up, and I am using the auto setting with the orange and white panel lights showing - this means the unit monitors the temperature of the receiver, and adjusts the fan speed accordingly. The AC instructions explain how to select the various settings. Sure enough when the receiver is on during the day or if I turn up the volume, the protective fan activates when needed and does it's job. The fan is silent and removes the excess heat perfectly. The top of the receiver and the internal components stay cooler thanks to the fan. As an extra bonus, the receiver sits on top of a credenza, and the fan helps to keep dust out of the inside of the receiver which has an open ventilation grid on its top.

I purchased an Aircom S9 to keep a recently repaired, near 30 year old JVC RX-905V cool after spending $150 to rebuild the power supply board after the low voltage capacitors on it blew and caused it to fail. Some people may (rightfully) question why anyone would spend that much to repair a 30 year old receiver instead of putting that money towards a new receiver. All I can say is, my JVC RX-905V is spotless, without imperfection and has served my now old ears very well for many years. Paired up with four Boston Acoustics CR-9's and an M&K 500w Subwoofer, it puts out music that my ears absolutely love and have been unable to find in any of the new, high-end units I tried. To even try and replace the features, functionality and sound it has with something else would mean spending well over $1,000. So replacing my receiver wasn't an option. So one day after getting my receiver back from the shop and feeling how hot it was getting, I happened to type "stereo cooler" in the search box here on Amazon Shopping. What?! There's such a thing?? Show me! And up popped the Aircom series of coolers with a lot of five star ratings. I read well over one hundred of them and placed my order. When my Aircom S9 arrived I quickly unpacked it, set it on top of my stereo, followed the easy peasey setup guide and turned my stereo on. I tried the automatic settings on the S9 letting the thermal settings cool my beloved JVC RX-905V and manually setting the fans to 3/4 speed to keep it cool. Both worked equally well and I ended up letting the thermal sensing control the cooling for my receiver. Now, I did have a small issue with the initial unit that I received from Amazon. The power supply ("wall wart" in amateur radio speak) generated a TON of RF noise which made receiving FM or AM radio signals on my receiver impossible. I contacted both Amazon and Aircom about the issue. Amazon's response was to ship a new unit right away. Not exactly what I wanted because I considered it a waste to ship an entire new unit when a replacement power supply would suffice. Aircom responded to my email inquiry within two hours and was profusely apologetic about the issue. They offered to send a new power supply (which is what I wanted) right away, all that I needed to supply to them was my Amazon order#. Amazon had already shipped a new unit so I opted to wait before proceeding with Aircom and informed them of such. I received a new Aircom S9 from Amazon and installed it quickly. I discovered the replacement has the exact same issue as the original and as I emailed the nice folks at Aircom about, their 1250mw power supply for their device puts out far too much heat in too small of a space and creates a lot of RF interference wiping out AM and FM reception due to lack of proper shielding. Since I'm an amateur radio guy, I rummaged through my parts bins and found a Fair-Rite Type 43 Toroid Choke and wrapped the power supply cable for the Aircom S9 around it 11 times. Problem solved, no more interference from the Aircom supplied Power Supply and now I'm a very happy camper. I genuinely like and appreciate the engineering that went into the Aircom S9 cooling device itself. It does the job well for my legacy receiver and I've no doubt it will help extend the life of it. Aesthetically, this is a very nice stereo cooler. It's quiet (even on high speed), looks great and does a great job keeping my receiver cool. I've been known to "exercise" my amp's capabilities and living in a townhome that means my neighbors occasionally hear me. LOL! My only "nit" is with the power supply that shops with it. It's poorly designed, generates too much heat and generates a ton of RF Interference. This is an easily fixable problem that I outlined in my email to Aircom hoping they pass it off to their engineers. If you're considering an Aircom S9 for your receiver/amplifier, this unit delivers the cool. Just do yourself a favor and order a Fair-Rite Type 43 Toroid along with it (those are easily found here on Amazon for about $8) and wrap the power cord around it 10-11 times to eliminate the interference. Then sit back and let the Aircom S9 keep your stereo receiver/amplifier nice and cool. Note: I purchased my Aircom S9 for my own personal use. I've not been asked to provide my review above by Aircom nor have I been compensated in any way for my review. I read so many good reviews about this unit that I felt I had to add my own and point out the flaws with the power supply that ship with it. I'm hopeful that Aircom incorporates the feedback I left them in email about the power supply and take steps to fix it. Their S9 device is a beautiful stereo cooler, it does a great job and it deserves a decent power supply.

Modern home receivers are still using a terrible method of amplification. Each channel is amplified, regardless of whether or not you are using it. So, if you've purchased that "11.2" AVR with all the watts, they are hot, and amped, even if you only actually have 2 speakers plugged in. What does this mean? LOADS of wasted power, which also means HEAT Yet, for whatever reason, AVR manufacturers also don't bother to (generally) actively cool. I had chosen to solve this by buying a cheap $20 desk fan and just pointing it at my AVR, but that fan died. So I took to amazon to see if anyone else had a more elegant solution. This is what I found, and it is exactly what I was looking for. The concept is simple, it's just some PC cooling fans in a plastic box with a fan controller and a simple LED. But it's priced fairly, it's quiet, and the features you don't need that are included with this are very nice. (I turned off the ambient LED lights, for example, using a simple button press) I had briefly considered buying PC fans and putting them in a box or something, but when I saw this, and saw the price, I did not hesitate to pull the trigger. My *ONLY* note that isn't 100% positive is that the images were a bit misleading about the size. If I had read the details, it wouldn't have been a shock, but I bought it at first sight, and was expecting it to roughly match the dimensions of my receiver. This unit is basically just two PC fans in size, so it doesn't cover the entire (or even most) of the top of my unit. However I set this to 50% fan speed, and could not hear it over ambient room noise, and when I put my hands on my AVR after about 30 seconds, it was already cool to the touch. PERFECT

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.

Tem um bom tamanho, silencioso e funciona muito bem!

produit de qualité et instalation facile

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