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

An Absolute Must Have For Legacy & New Stereo Receivers & Amplifiers
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.

Great fan for receivers
Note: This is a very late review. I got this in 2021.After almost 3 years of use it still runs perfectly.This keeps my receiver cool, it is quiet, and it moves a good volume of air.Issues: The fans aren’t exactly the easiest to clean. I would have to disassemble this to fully clean the fan blade.

Just what I needed
Keeps my amplifier cool, quietly and at a great price

works perfectly
nice looking , blends perfectly with my marantz as if a part of . solid build nothing cheap here. set to automatic keeps unit cool. highly recommended

Mein Mann hat eine HighEnd- Stereoanlage mit Geräten vom Feinsten. Zum Geburtstag wünschte er sich von mir dieses Belüftungssystem.Er war begeistert vom edlen dünnen Design, der Qualität und der leisen, kraftvollen Arbeitsweise.Es dauerte zwar ziemlich lang, bis die Lieferung da war, aber das Warten hat sich gelohnt!Die Preis-Leistung stimmt, es gibt nur Gutes zu berichten.Ein Tipp: Vermerken Sie bei der Bestellung, das Sie einen deutschen bzw österreichischen ADAPTER benötigen!Dieses Belüftungssystem ist selbstverständlich für jeden, der Kühlung braucht, super geeignet.Mein Mann hat sich jedenfalls sehr gefreut….100% Weiterempfehlung!

I replaced my uncooled and failing 30-40 year old multi-amp/processor surround sound system components with a Yamaha RX-A1060 7.2 receiver a year ago. The top vent temperature normally runs over the Auto trigger temp. of 88˚F and goes over the recommended leveI of 94˚F when working hard (not often) or when ambient room temp. is high in summer. The Yamaha will probably outlive me, but I thought I’d spoil it with this cooling device. I am currently running it constantly on the lowest speed, playing some bass-heavy electronic music at a tolerable level. The unit appears well-built and I expect it to perform well. BTW, for those who may find the fan speed LED indicator a bit too bright, a narrow strip of thin but stiff coloured transparent plastic film can be bent into a [ shape and inserted over the display, between the Mode and Fan Speed buttons.Shipping was excellent: The order placed on Friday morning was shipped within 5 1/2 hours and delivered to my PO box first thing Monday morning.Warm weather operation followup: Running at the lowest speed, the exhaust air never passed 31˚C/88˚F when the ambient temperature was 26˚C/79˚F.Early 2024. Still running smoothly after 1000s of hours but now set on automatic. No change except for the price which has gone up by $100 since 2018 when it was sold by AC Infinity directly. Third party sellers can inflate prices.