AC Infinity AIRCOM S6, Quiet Cooling Blower Fan System 12" Rear-Exhaust for Receivers, Amps, DVR, AV Cabinet Components

I am in a unique situation in that I have modified my entertainment console with built-in fans that plug into the devices USB power, so whatever devices i am powering have their associated fans on while they are running. In my never-ending quest to keep my electronics cool, I picked one of these up to help cool my Denon x3800h. Turns out, I didn't need it and it never even turned on when in automatic temperature control mode (smart mode?). Turns out my custom built-in fan solution on my entertainment console was doing such a great job there was never enough heat output to trigger the device on.Now, while I did not need this, there are MANY people out there who probably do not realize just how badly they need these. We tend to shove these big, power-hungry A/V Receivers into tight little entertainment consoles, but the amplifiers put out lots of heat and really need active airflow to help prolong the life of the electronics.For the price, this is a no-brainer. I've seen so many people out there with $1000-$2500 received crammed into furniture with little to no airflow, and they are just cooking the internals. I know Denon/Marantz particularly have started running so hot that some of the higher end models are coming with active cooling fans, but if they have no way to exhaust that hot air it is only going to recirculate hotter and hotter air.That, is where this product swoops in to save the day. With this intaking from the bottom and exhausting from the rear, it actually works in tandem with the in-built fans on newer receivers and gets the hot air AWAY from the receiver, allows the receiver fans to keep circulating fresh, cool air. This just sits directly on top of the receiver and streamlines the airflow path to efficiently exit to the rear (for this specific model, front and side exhaust also available).Active cooling is a must have for power hungry home theater electronics, especially when they are sitting in an entertainment console / tv stand.

I ordered the S6 model to replace a Middle Atlantic Comp-Cool that bit the dust after 6 years (if you're familiar with those and know what you pay for what you get, they're a terrible investment compared to an Aircom). I'm very impressed with what the S6 delivers for $50. I chose the 12" model because I didn't see the need for the larger 17" ones. Nor did I see the need for the additional expense of the T models with the screen. Any rack you have your gear in must have venting for heat to exit. These won't work without it. You're just recirculating hot air otherwise.You get two controls on the S Models - one for mode and one for fan speed. The modes are off, on, auto, and smart. On means the fans run all the time. Auto means the fan turns on and off depending on equipment temperature at a single fan speed you set. Smart is similar to auto, except fan speed is also automated - slowing and speeding up depending on how hot things are. You can set the max fan speed for the smart mode. The fan speed button allows you to choose among 4 speeds. Finally there's a round indicator that lights in quarters to indicate the fan speed at a glance. Nice and simple. If you need further programmability than that, then consider the T models. So how does the unit work? Very well. It does the job its supposed to and will keep your equipment cool. On the auto modes I believe it turns on at 88 degrees and shuts off at 84. Make sure to choose the model that blows the hot air exhaust were you need it to vent out depending on your setup - front, rear, or top.So let's talk about fan noise. I read numerous reviews that ranged from "I can't hear a thing" to "I can't live with how loud this is". How can both be true? Turns out they both can be true depending on your setup. If you have an open rack and sit within 3-6 feet of it, you'll hear the top 2 speeds, but not the lower 2. My setup is a closed console with a tight fitting door and rear vent hole. I sit 9 feet away. With no content on and my console door closed it's dead silent at the first 3 speeds, but the top speed is noticeably audible. With content on at typical TV listening levels I barely hear the top speed. If playing music or watching an action movie relatively loudly (which is when an amp will really get hot), even the top speed won't be heard in my setup except in quiet passages. Bottom line: don't worry about noise with these units. Play with it in your setup - you'll find your audible comfort level, and can set the fans to never go fast enough to hear. You don't need full speed for these to cool in most cases. For reference, the S6 tops out at 100 CFM - my old fan was successfully keeping my system cool with only 8 CFM. So, you can easily keep these in the really quiet lower two speeds and in most cases have that be enough cooling.Get one of these. Your equipment will thank you - as will your wallet. You don't want to fry the HDMI board on your AVR. Enjoy!

Its good