Top positive review
21 of 22 people found this helpful
Coolfan performance review
on May 4, 2012
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.