AC Infinity AXIAL 1225, Quiet Muffin Fan, 120V AC 120mm x 25mm Low Speed, UL-Certified for DIY Cooling Ventilation Exhaust Projects

I purchased two 120mm fans from AC Infinity, one high speed and one low speed. The short story is that both fans are awesome quality. The high speed fan is a little too noisy for a living room entertainment center but makes some impressive airflow. The low speed fan is quiet enough to use in the living room, 6 feet away, and not make a noticeable amount of noise while still moving plenty of air. If you are looking for a fan, buy one of these.I built two stereo cabinets with intake filters and used these fans as exhaust fans. Since I had two cabinets, one for the shop and one for the house, I bought both the high speed and low speed fans figuring I would put the high speed in the garage if it was too noisy for the living room. Both fans are very high quality, sturdy aluminum surrounds. The high speed fan is about twice as thick as the low speed fan but otherwise they are identical. All the hardware necessary to mount them was included and mounting screws were long enough to mount through 3/4 inch thick plywood without problem.The high speed fan did turn out to be more noisy than I wanted for the living room so it ended up in the shop. The primary purpose of the cabinet in the shop was to protect the stereo from metal dust and other nasty garbage, but I have no doubt that a single 120mm high speed fan will circulate more than enough air to cool any electrical component or series of components you could assemble. I am using a standard 16 x 20 inch ventilation duct filter from the hardware store and the fan generates enough force to hold the cabinet door (20 x 24) shut with a clean filter. Even now that the filter is getting clogged with sawdust and grinder dust the fan is still moving air. The only downside is the noise. For comparison, if you have heard a PS4 switch from normal cooling to high speed cooling, that is about how loud this fan is.The low speed fan is perfect for my stereo cabinet in the house. It is quiet enough that you forget it's on as soon as you turn on the radio or TV and sit down on the couch six or so feet away. I have a receiver and a PS4 in the cabinet and the cabinet temperature has not risen above ambient enough that I can tell by feel, even after hours of movies or video games. This is in a small footprint cabinet with no room inside for internal circulation, so the PS4 gets hot very quickly without the fan on. I know the fan is doing all the work cooling and getting it done nicely.I have little doubt these fan will last for years based on the quality and they are definitely worth the price.

Purchased this item sometime ago and it runs 24 hours a day and it's quiet and still running. Would highly recommend

I had this fan for over a week, the unit is very well build with metal housing, fits and finish is excellent plus it very easy to install in my entertainment cabinet. However, it's a bit too noisy when you can hear it runs while watching a movie since you can't control its fan speed. If you want to select this fan and don't care about the noise then you should give it a try.In my case, I returned it and bought another fan with variable speed control and so far so good, the variable speed fan work as expected and the fan's noise is barely noticeable even when watching a movie.

I’ve always wanted to be able to close the cabinet doors while using my receiver. This fan allows me to exhaust the heat and bring in cooler air allowing my equipment to run cooler. I chose the quiet model and I can’t hear it with the doors closed. It came with an AC plug which I have connected to the switched outlet on the receiver.The installation steps were straight forward and would have been easier if I had been able to move the 200 pound tall cabinet that I installed it in. The fan case is metal as are the wire screens. Using the screen as a drilling template required no measuring. They recommend a hole size to match the fan case. That is 4.75” for the 4” fan. I was not going to buy a $30 hole saw for this one project so I made the hole 4” (the diameter of the blades) Packaging was excellent and I bought two so I have one for the next cabinet I build.

I purchased the coolfan initially on its own to cool 300b tubes in a highend audio amplifier. I was told by my manufacturer that if I could get recirculating air to the tubes there was a potential of doubling the life of the tubes since heat destroys most everything.When I got the fan I was very impressed with the quality of build for its 4 inch size and the 56cfm rated output. The case of this fan is aluminum and it has some weight for its 4 inch square size.When I initially plugged it in and saw how powerful it was I was impressed with the high air flow but I knew that the noise level was not going to work in my application because I needed dead quiet for listening to music.Jimmie fixed this problem by sending me a powercord (also sold on Amazon) that contains a variable voltage control to the fan thus you can adjust the speed for any intended application.I therefore adjusted the speed to almost as slow as it would go and the noise level dropped 10 fold while still circulating enough air to make the fan perfect for my intended use. If you do this you will only hear a faint whisper from 3 feet away and from where I listen (12 feet) you cannot detect any noise yet it is circulating air out to 3-4 feet. Therefore I would highly suggest purchasing the fan with the variable speed power cord....it really makes the fan much more versatile.For those of you that have found bargains that really work this should be added to your list. For those of you that want a quality fan for cooling internal space of a home theater enclosed rack, hi-end tube power amplifier,computer case and many other devices this one should be at the top of your list. I might also add that Jimmie at AC FAN was a joy to work with and his service was outstanding. Highly Recommended.