AC Infinity, AIRCOM T8 AV Component Cooling Fan System 17”, Rear-Exhaust

Product: AC Infinity AIRCOM T9 I bought the AC Infinity AIRCOM T9 to cool down my Parasound amp. Sitting out in the room, with an ambient air temperature of about 79 degrees F, the amp's heat sinks were measuring around 120 degrees F. Hot to the touch. I started looking for a cooling solution and when I came across the AIRCOM T9, I thought this product might work. Better than building my own... The AIRCOM T9 does work and it works really well... amazingly so. On the lowest fan speed setting (with my mods in place), the AIRCOM T9 front panel temperature reports about 12-14 degrees above ambient. My digital temperature gun confirms the T9’s front panel temperature readout within a degree. This is a vast improvement over the 40 degrees F above ambient I was measuring at the heat sink. Keep in mind the T9 is measuring air temp (bottom side of the T9) where as the digital temperature gun measures something solid, like the heatsink and the metal discharge grate around the fans. If I turn the fan speed to a higher setting, the front panel temperature reading drops even more, but as expected, the fan noise increases. At the fastest speed setting, I saw a 5, 7 degree difference from ambient. But the fan noise was too much for me, even though the music obscures most of the fan noise. With the fan set to the third lowest setting (out of 6 possible settings), the fan noise level is much more agreeable. When I discovered the lowest fan setting worked like a champ, I just left it at the lowest fan setting. At the lowest fan speed setting, the fan noise is present, but its nearly, almost inaudible - consider it essentially inaudible. It’s quiet enough that guest won’t hear it when the music isn't playing and when the music is playing, for sure, the fan noise isn't heard. Heck, when the music isn’t playing I don’t notice it anymore, and I've got the critical ear. If either the AIRCOM T9 or the AIRCOM S9 (both have essentially the same specs) is used within a closed furniture cabinet, like most entertainment center’s people buy, I suspect the highest, fastest fan speed would not be heard as its not that loud. The AIRCOM T9 front panel display can be turned off. When on, its a bit bright in a dark room. Its fine for me. The mods I made to the T9... around the perimeter, on the underside, I added a “D” shaped 5/16” x 23/64” Auto and Marine Rubber Weatherseal, a black colored EPDM rubber product I found at Lowes. I left the T9’s feet in place and when I placed the T9 on a glass table top, I could see all the seals were touching the glass surface sufficiently, deforming enough to create a sealed chamber in order to pull the air through the amp without any front, rear or side leakage. This is probably why the lowest fan speed setting works so well for me. One thing I noted... the fans are slow to change speed, meaning the spin up and the spin down time is gradual instead of an instant change of speed like with my computer fans. I think this is a positive aspect... not becoming aware of the fan speed change. Keep in mind... the AIRCOM T9 has a temperature probe protruding 1, 2 mm on the bottom side. You can feel it with your finger, located around the middle fan... don’t knock it off. The downside to the AIRCOM T9? Another wall wart to deal with! Annoying, but its a small price to pay for the AIRCOM T9’s performance. The ambient air temperature in the photograph is around 75 degrees F. Without the AIRCOM T9, the heatsinks would measure around 118, 120 degrees F. With the AIRCOM T9, 87 degrees F is great. The highest temp I've ever measured at the heatsinks was around 126 degrees F, and to be CLEAR, WITHOUT the T9 in place and doing its cooling thing.. The construction of the AIRCOM T9 is really good. Impressive construction quality. The packing box is solid enough for USPS/UPS shipping, though Amazon put it in another box. Thanks Amazon! So, would I buy the AIRCOM T9 again? Yes, but not for my amps. I think the AIRCOM S9 would work just fine. I really don’t need the features of the programmable AIRCOM T9 for my amps. The amps I’ve owned get hot and stay hot, regardless if they are idling or playing music. A constant flow of air through the amp’s heat sinks is all I need. I want thermal stability from the constant air flow. I don’t want the fans turning on and off. Constant airflow with little noise is the goal. Yeah, I’m happy with the T9! I’d probably be happy with the S9 as well. I do like the T9’s front panel display... Instant feedback! Update: 8/17/18 I continue to be very pleased with my purchase of the T9. Because of the cooling it is providing, I think my amp has a "better sound" than without the T9 cooling. Yeah, I know... all of my imaginary audio voices are telling me so. I do think the amp will probably live longer.. heat's a real killer for electronics. I think some clarity is needed about noise... on the slowest fan speed setting I use, in a quiet room without any music playing, I can hear the fans. Mind you, my amp sits out in the open without anything to block the fan noise. See the pictures. I've caught myself wondering what that "noise" was, and when I realized it was the fans from the T9, I said, "Oh, OK... 4 larger, slower turning fans would have been better". Still, the noise level is really low, and when I play any music at a low volume settings, I do not notice the fan noise. Regardless, still very, very happy with this purchase. All of my imaginary audio voices are telling me I brilliant!

Just unpacking this device you can feel its quite heavy, actually heavier then I had expected, but this is a good thing, as it shows this is not just a nice looking tin box with some fans in it and is in fact built to similar spec as the audio gear it protects. The T8 looks quite nice with my amp, however its clear the designers had Marantz in there minds when building this. The odd curved shape really only matches a Marantz I would love for them to make this exact device without the curved ends because AC Infinity If Your Listening most amps have flat face-plates so why is it designed around Marantz. Nitpicking aside the unit works very well and is easy to set up once you understand how the various modes work. The AIRCOM T8 comes with a small booklet explaining the setup. Once you have decided how you want it to work by choosing a mode, speed and a target temp for the fans to turn on its basically on auto pilot and I must say it works very well. My test subject is an Onkyo HTR as you may already know these amps can run very hot. I had an older one fail due to how hot it would get during just normal use. I got this to make sure my new Onkyo amp is kept at a nice even temp. So far this unit has been working so well that even after watching movies for part of the day the amp is just warm to the touch where before I added the T8 it would get pretty hot. Note: I do feel they should perfect it to make it quieter because in my opin its not as quiet as I would have liked and expected, but I keep it at 2 and its not too bad, so I wouldn't call this device whisper quite if that's what your expecting. I have mine in a BDI Media Cabinet and with the doors shut during a quite section of a movie I can still hear it a little bit and I wouldn't have this ever set on 5 which is pretty loud and there's no real reason in my setup to do so, Speed 2 keeps my amp at around 89 degrees and im fine with that considering it can go over 118 degrees with no cooling fans in a rack with closed doors. Do I recommend buying one? yes if you have a hot amp and especially if your gear is in a cabinet with closed doors then you will def want one of these its well worth the price.

I’ve used this for the past 2 1/2 years and this is a very effective cooler for any AVR/amp that tends to run warm or hot. On the lowest fan speed the sound is barely noticeable even on low volume settings however if you allow the cooler to run at higher speeds, you will hear the fan engage at higher speeds when it senses heat heat from your AVR or amplifier. Of course this will depend on how hot your amp runs during use. I have offloaded power on my setup to seperate amplifiers allowing for a lower fan setting compared to using the built in power of my AVR. You will be able to adust temperature and speed settings to your liking. Overall it does a good job and should help prolong the life of your equipment.

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.

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.

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.

Bats way above its price. This is a very well made unit. Its look and feel will give up nothing multi-thousand dollar equipment it sits atop. Very easy to set up and monitor thru the front display. In use the fans are quiet. It is doing an excellent job of reducing the air temps coming out of my AVR which has 13 channels rated at 150W per while in use.

My Marantz SR5015, purchased January 2021, started dropping the audio randomly in February 2025. No conditions had changed in my home, I checked all my connections and what not, everything was fine. I placed a small box fan next to the receiver and the audio turned back on. So it was an overheating issue. Being out of warranty and not wanting to have a box fan constantly blowing on my receiver, I immediately thought of AC Infinity as I've bought many of their products over the years and they've always been high quality. I purchased the rear-venting Aircom T8 and have been very happy with it. It's heavy duty, elegant, well made, and the front curvature aligns perfectly with me Marantz. It's a little bit deeper than my receiver so it hangs off the back a bit but keeping it flush in front with my receiver still has the fans lined up perfectly with the top vents of the Marantz, plus the bottom pads are still on the receiver. I played around with the Auto and Smart features quite a bit and, after doing testing and looking at research online, went with the Auto feature. The fan speed at 2 seemed to work the best but the noise bothered me slightly. I bumped it down to the lowest speed of 1 and it still is able to drop the temperature adequately. I have it set to turn on at 85 degrees, drop to 81 degrees, alarm at 95 degrees. So far it's never gone above 85 degrees! In reading reviews, the top-venting model has a lower dB although I wish these fans were just a little quieter. The instructions are just ok, you have to read every Mode setting carefully as they contain settings that affect how the Auto and Smart modes work. My recommendations to AC Infinity is to use quieter fans and update your instructions to be clearer!