Review on Wathai Playtations Receivers Computers Electronics by Ardy Espinoza

I replaced a Wathai unit with a speed that I was using to improve ventilation (and heat generation) in my home entertainment center duct. I bought the first model due to concerns about heat build up in the closed compartment of my Denon AVR-X3700H receiver but found it too loud. This variable speed model allowed me to adjust the speed so that the audio didn't disturb the quiet parts of movies or music. At the chosen speed, I regularly check the top of the receiver and didn't find it uncomfortable to keep my hand in one spot.