AC InfinityMULTIFAN S3-P, Quiet 120mm AC-Powered Fan with Speed Control, UL-Certified for Receiver DVR Playstation Xbox Component Cooling

I bought three of these to cool down two tube amplifiers (One for a power amp and two for a guitar amp), one AC adaptor powers all three daisy chained together. They are dead quiet and do a great job of dissipating heat.Given the cost and limited availability of tubes these days I wanted to keep mine running as long as possible. Keeping the heat from building up inside the amp can extend tube life and I also find that the tone of the amp is more consistent when it's running cool. One fan placed directly over the power tubes for the power amp and two in the guitar amp (One at each end of the chassis) makes them significantly cooler to the touch.If you prefer tube amps these are a worthy and affordable investment. I've found that temperature and stable, correct voltage really impact the tone and performance of tube amps, these are a cost effective way to address the temperature issues and make your tubes and other components last longer.

Este producto cumple y sobre pasa las espectativas, pocas veces dejo comentarios, pero ahora sí vale la pena. Todo lo que dicen de él es cierto, silencioso, enfría, en fin cumple su función para lo que se supone que es adquirido.100% recomendable

Réduction température d’un Switch 10Gb

Very well made and performs at or better than stated. Perhaps a bit louder (nominally), but even at 2 feet away, it was nothing to bother about.I used this, together with their dual ac fan unit, to cool a heavily loaded flight simulator computer. It brought down the operating temperature by 20 degrees Celsius (+) and was a lot easier (and more reliable) to "install" than would be internal pc fans. Also probably 40% more air volume.I am very pleased with both the quality and performance.(con). more a design improvement suggestion than a negative (versus their product description): I would like to have the speed control switch being mountable, say with a screw plate on the rear. Most users won't care, but it would have made it easier for me to make a permanent install out of the switch. I resolved by gluing on a screw plate.Again, NOT A CON, since the cord mount speed control switch is exactly and performs as described.A quality product -- I'll no doubt buy again as I come across applications.BrianVancouver, Canada

What I didn't Expect from the company before despatching the order the should have checked it. It looks that previous return was sent to me the packing plastic bag of AC fan power was torn. The twisting tag for usb cable all three were just dump in the box it was use/tested item. But the AC Fan was working it is good for AV receiver cooling. I could not return due to no time I check out 06:00 hrs in the morning and return back 20:00 hrs. Request for the company please do not this during covid 19. Inspite of this I gave 5 star the product is good quality. I am sorry this is my taught on this product.