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Cathar · 12-20-2003, 08:49 PM

I have an MD-30RZ. It emits a medium pitched turbine whine, albeit fairly quiet. A mid-speed 8cm case fan is about the same volume, and a CD drive spinning up is much much louder. The pump does vibrate though, so are you sure that the sound really isn't the sound of the vibration of whatever the pump is sitting on?

I sit my pump on some foam rubber to stop the vibrations transferring to the surface that the pump sits on, and only if I turn everything else off in the room then can I really make out the noise of the pump.

12-20-2003, 08:49 PM	#2
Cathar Thermophile Join Date: Sep 2002 Location: Melbourne, Australia Posts: 2,538	I have an MD-30RZ. It emits a medium pitched turbine whine, albeit fairly quiet. A mid-speed 8cm case fan is about the same volume, and a CD drive spinning up is much much louder. The pump does vibrate though, so are you sure that the sound really isn't the sound of the vibration of whatever the pump is sitting on? I sit my pump on some foam rubber to stop the vibrations transferring to the surface that the pump sits on, and only if I turn everything else off in the room then can I really make out the noise of the pump.