--- product_id: 33759253 title: "AC Infinity, AIRCOM S9 AV Component Cooling Fan System 17”, Top-Exhaust" brand: "ac infinity" price: "£115.32" currency: GBP in_stock: true reviews_count: 13 category: "Ac Infinity" url: https://www.desertcart.co.uk/products/33759253-ac-infinity-aircom-s9-av-component-cooling-fan-system-17 store_origin: GB region: United Kingdom --- # Ultra-quiet 21 dBA noise 3 dual-ball bearing fans 210 CFM airflow AC Infinity, AIRCOM S9 AV Component Cooling Fan System 17”, Top-Exhaust **Brand:** ac infinity **Price:** £115.32 **Availability:** ✅ In Stock ## Summary > ❄️ Keep your legacy gear cool and your sound hotter — because overheating is so last decade. ## Quick Answers - **What is this?** AC Infinity, AIRCOM S9 AV Component Cooling Fan System 17”, Top-Exhaust by ac infinity - **How much does it cost?** £115.32 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/33759253-ac-infinity-aircom-s9-av-component-cooling-fan-system-17) ## Best For - ac infinity enthusiasts ## Why This Product - Trusted ac infinity brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Robust & Sleek Build:** Durable alloy steel housing supports up to 30 lbs, fitting seamlessly into tight AV setups. - • **Customizable Fan Speeds:** Four speed settings let you dial in the perfect balance of cooling and silence for your environment. - • **Precision Thermal Control:** Smart dual-mode thermostat triggers keep your gear perfectly cool without wasting energy. - • **Whisper-Quiet Performance:** PWM-controlled fans with vibration-absorbing mounts deliver powerful airflow at a barely-there 21 dBA. - • **Versatile Mounting & Compatibility:** Horizontal or vertical placement fits receivers, amps, consoles, and AV cabinets with ease. ## Overview The AC Infinity AIRCOM S9 is a premium 17-inch top-exhaust cooling fan system designed to protect AV components like receivers, amplifiers, and gaming consoles from overheating. Featuring three dual-ball bearing fans with PWM motors, it delivers a powerful 210 CFM airflow at an ultra-quiet 21 dBA noise level. Its smart thermostat triggers and four-speed controls ensure optimal cooling tailored to your setup, while its durable alloy steel construction supports up to 30 pounds and fits in tight spaces. Ideal for extending the lifespan and maintaining peak performance of your high-end audio and video gear. ## Description A quiet fan system designed for cooling receivers, game consoles, and other AV components. Protects components from overheating, performance issues, and shortened lifespans. Programming features two thermal trigger modes and four speed control options. Contains three dual-ball bearing fans with PWM-controlled motors to minimize noise. Dimensions: 17 x 13.5 x 1.5 in. | Exhaust: Top | Airflow: 210 CFM | Noise: 21 dBA | Bearings: Dual Ball Product Description A quiet cooling fan system designed to be placed on top of AV components such as receivers, routers, game consoles, and AV cabinet components. Maintaining an optimal temperature for components prevents overheating, ensures constant performance, and extends their lifespan. The controller on the front of the cooling system features a smart thermostat trigger and fan speed control. The steel enclosure houses two dual-ball bearing blowers that pull heat out of the component and exhaust out the top. The dual ball bearings also allow this fan system to be mounted horizontally or vertically. Its low-profile design enables the unit to fit in tight spaces. Includes corded power adapter to plug the fan system through an outlet. Intelligent Programming There are three programming settings available which includes two temperature trigger modes. The fans can also be set to run continuously or be turned off. Four fan speeds are available for each active mode and will determine the speed at which the fans run when they are triggered. This ensures optimal airflow and noise levels for your application. Design and Construction Each system features dual-ball bearing fans rated at 67,000 hours and are certified by CE and RoHS. Fans contain a PWM-controlled motor used to minimize noise during speed variations and are suspended in mid-air with silicone mounts to absorb vibrations. A low-profile design allows the unit to fit in applications with a limited height clearance. Aluminum and steel construction enables additional components up to 30 pounds to be stacked on top. Product Identification Manufacturer AC Infinity Inc. Product Name AIRCOM S9 Product Model AI-ACS9 UPC Code 854759004655 Product Dimensions Total Dimensions 17 x 13.5 x 1.5 in. (43.2 x 34.3 x 3.8 cm) Cord Length 72 in (6 feet) Product Performance and Technical Specs Number of Fans 3 Exhaust Top Total Airflow 210 CFM Total Noise 21 dBA Static Pressure 1 mm-H2O Operating Voltage 12V DC Power 8.8 W Current 0.73 A Wall Adapter Input 100 to 240V AC Operating Humidity 35 to 85% RH Operating Temperature 0 to 158°F Fan Bearings Dual Ball Mounting Positions Horizontal or Vertical L10 Life Expectancy 67,000 Hours Top Weight Capacity 30 Pounds UL Certification (Fans Only) PDF CE Certification (Whole Product) PDF RoHS Cert. (Whole Product) PDF Product Manual Product Manual PDF Review: Cooled Amp as if It Was Not Even Powered On! - ** 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. Review: Great investment, works exactly as advertised. Did not know I needed this! - 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. ## Features - A quiet fan system designed for cooling receivers, game consoles, and other AV components. - Protects components from overheating, performance issues, and shortened lifespans. - Programming features two thermal trigger modes and four speed control options. - Contains three dual-ball bearing fans with PWM-controlled motors to minimize noise. - Dimensions: 17 x 13.5 x 1.5 in. | Exhaust: Top | Airflow: 210 CFM | Noise: 21 dBA ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01LVUWOBX | | Air Flow Capacity | 210 Cubic Feet Per Minute | | Best Sellers Rank | #116 in Computer Case Fans | | Brand | AC Infinity | | Brand Name | AC Infinity | | Compatible Devices | Gaming Console | | Cooling Method | Air | | Customer Reviews | 4.8 out of 5 stars 4,426 Reviews | | Item Dimensions L x W x H | 17"L x 13.5"W x 1.5"H | | Manufacturer | AC Infinity | | Material Type | Alloy Steel | | Maximum Rotational Speed | 6700 RPM | | Model | AI-ACS9 | | Noise Level | 21 Decibels | | Number of Items | 3 | | Part Number | AI-ACS9 | | Power Connector Type | SATA/Molex or 3-pin/4-pin | | Product Dimensions | 17"L x 13.5"W x 1.5"H | | UPC | 854759004655 | | Unit Count | 1 Count | | Voltage | 12 Volts | | Wattage | 35 watts | ## Product Details - **Brand:** AC Infinity - **Compatible Devices:** Gaming Console - **Cooling Method:** Air - **Material:** Alloy Steel - **Maximum Rotational Speed:** 6700 RPM - **Noise Level:** 21 Decibels - **Power Connector Type:** SATA/Molex or 3-pin/4-pin - **Product Dimensions:** 17"L x 13.5"W x 1.5"H - **Voltage:** 12 Volts - **Wattage:** 35 watts ## Images ![AC Infinity, AIRCOM S9 AV Component Cooling Fan System 17”, Top-Exhaust - Image 1](https://m.media-amazon.com/images/I/51iWLsgbqXL.jpg) ![AC Infinity, AIRCOM S9 AV Component Cooling Fan System 17”, Top-Exhaust - Image 2](https://m.media-amazon.com/images/I/61X9wtfAygL.jpg) ![AC Infinity, AIRCOM S9 AV Component Cooling Fan System 17”, Top-Exhaust - Image 3](https://m.media-amazon.com/images/I/61CbqsaKdgL.jpg) ![AC Infinity, AIRCOM S9 AV Component Cooling Fan System 17”, Top-Exhaust - Image 4](https://m.media-amazon.com/images/I/61CkRH33SUL.jpg) ![AC Infinity, AIRCOM S9 AV Component Cooling Fan System 17”, Top-Exhaust - Image 5](https://m.media-amazon.com/images/I/61JQCNcrbsL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: i have a denon avr s940h reciever in an enclosed cabinet with 4 inches from top of reciever to top of cabinet. Will the s9 or t9 work?** A: 4" from the top of your receiver means only 2.5" from the top of the AIRCOM S9. This may be too little clearance for a top-exhaust unit. You say "enclosed cabinet." I assume one side is open. The hot air needs to vent somewhere. If this is true then go with a front or rear exhaust system instead. The AIRCOM S10 is the front-exhaust version and S8 is rear-exhaust. Also, I like the S-Series because it offers all the control over the fans that I require. The T-Series costs more and seems a little overkill. Unless, however, you really like the LCD display. **Q: Will this work in automobile applications** A: It works off of 120. You should call the company and ask them if they have fans for automotive applications. **Q: does anyone use these fans in a stack? in between 2 components (amp, fan unit, avr for example)?** A: As long as you have proper clearance I don't see why it wouldn't cool ok. I think it pulls air upwards better than pushing air but I have used it to push air up thru an amp. **Q: Have a receiver in a cabinet with 3.5" space behind it to back of cabinet or about 5" above it to a glass shelf. Top or rear exhaust unit is better ?** A: This unit exhausts from the top and I have about 1 inch above the unit. It works perfectly. I’ve had no problems with the receiver overheating, since I purchased the fan. If you have 5” above, it should work very well for you. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Cooled Amp as if It Was Not Even Powered On! *by R***M on May 15, 2021* ** 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. ### ⭐⭐⭐⭐⭐ Great investment, works exactly as advertised. Did not know I needed this! *by G***3 on September 14, 2025* 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. ### ⭐⭐⭐⭐⭐ An Absolute Must Have For Legacy & New Stereo Receivers & Amplifiers *by N***K on August 12, 2020* 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. ## Frequently Bought Together - AC Infinity AIRCOM S9, Quiet Cooling Fan System 17" Top-Exhaust for Receivers, Amps, DVR, AV Cabinet Components - AC Infinity AIRCOM S10, Quiet Cooling Blower Fan System 17" Front-Exhaust for Receivers, Amps, DVR, AV Cabinet Components - AC Infinity AIRCOM S7, Quiet Cooling Fan System 12" Top-Exhaust for Receivers, Amps, DVR, AV Cabinet Components --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/33759253-ac-infinity-aircom-s9-av-component-cooling-fan-system-17](https://www.desertcart.co.uk/products/33759253-ac-infinity-aircom-s9-av-component-cooling-fan-system-17) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-24*