AC InfinityAIRCOM T10, Quiet Cooling Blower Fan System 17" Front-Exhaust, for Receivers, Amps, DVR, AV Cabinet Components, Compatible with Digital Video Recorder

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!

I bought the Aircom T10 to keep my Onkyo TX-RZ620 AVR cool during extended periods of use, in order to keep it working for the foreseeable future. The unit shipped in excellent packaging, with foam inserts to prevent damage. Straight out of the box, I could tell the T10 was well built and well designed.Installation was simple - position the unit, plug it in, and it begins working. With only 4 buttons on the front panel, programming is quick and easy, allowing you to toggle max fan speed, display brightness, temperature alarm threshold, etc.I initially used Smart Mode, which automatically triggers the fans at the slowest speed setting when the probe (measured) temperature threshold is crossed, and increases fan speed commensurate with subsequent increases in the probe temperature. This mode works very well, but also constantly cycles the fan on and off when the AVR is not taxed. I was assured by AC Infinity that the on/off cycles won't shorten the lifespan of the T10, which has fans rated for 67,000 hours of use(!). Nevertheless, the thought of the fans coming on and turning off over and over with only a 1-degree temperature differential is a bit...distracting.In any event, I've since switched to Auto Mode, which waits until your threshold probe temperature is reached, then runs the fans at an appropriate speed (but only as high as your programmed highest fan setting) until the temperature is decreased by 2 or 4 degrees Fahrenheit, then turns the fans off again. I find this to be a bit less distracting - the fans run slightly faster for longer, but then they're off again for just as long.With regards to distraction, I will say that the fans are definitely audible at a distance of ~12 feet. Obviously, the lower the fan speed, the lower the fan noise. I set my fans to max out at setting 3, and I find settings 1-2 are lightly audible if your TV/movie/music has a lull (i.e. when there is no sound coming from your speakers). However, if there's any sound coming from your AVR, you likely won't detect fan noise unless you try really hard!Finally, my AVR is not one that runs excessively hot (I believe Denon and Marantz are the hotter-running brands). I haven't pushed my AVR since installing the T10, with a prolonged period of loud (7.2 channel) music, but the Aircom T10 easily keeps my probe temperature under 80 degrees at normal use levels, with a max fan speed of only 2 (out of 6)! This does the job, and does it well.

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.