Review on AC Infinity Ventilation Electronic Replacement Home Audio by Jeff Labore

The fans are very quiet until the grill turns on. The grille makes the fans sound about 10 times louder (virtually silent on their own) than spinning alone. It goes from almost silent to an annoying hum. So disappointing. :-( I've tried both the included black grille and this white grille, no visible difference. Same annoying hum and changing the fans was excruciating. There's nothing to keep the fans in place so you have to balance by sliding them over the holes (or where you suspect the holes are) will hold the wires and balance the unconnected grill plates and try to screw something in without falling apart. .