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andy497 · 03-15-2005, 10:47 AM

First, are the danger den d4, aquaxtreme, and swiftech mcp650 all the same pump? They sure look to be.

I'm looking to replace my current 12V pump, and I'm looking for decent performance but quiet. Of the above pumps, the only one I can find in stock is the danger den d4. That's advertised as quiet, but folks say otherwise. Does it respond well to undervolting? This would be with a conventional variable resistor (e.g. rheostat). I don't mind the sound of gurgling water, but the horrible high-frequency whine of my current pump has got to go. I'm swapping my 120s with yate loons at the moment, so that's my noise floor for comparison. Otherwise, are there other pumps that fit this bill? (don't need tons of flow but this is a pretty restrictive system)

addendum:
fyi, my current desktop chiller (pump plus 2 120 fans) measured ~65 dB with my cheap meter. I'm guessing anything I buy will beat that by a huge margin.

03-15-2005, 10:47 AM	#1
andy497 Cooling Neophyte Join Date: Mar 2005 Location: MI Posts: 34	misc. pump questions First, are the danger den d4, aquaxtreme, and swiftech mcp650 all the same pump? They sure look to be. I'm looking to replace my current 12V pump, and I'm looking for decent performance but quiet. Of the above pumps, the only one I can find in stock is the danger den d4. That's advertised as quiet, but folks say otherwise. Does it respond well to undervolting? This would be with a conventional variable resistor (e.g. rheostat). I don't mind the sound of gurgling water, but the horrible high-frequency whine of my current pump has got to go. I'm swapping my 120s with yate loons at the moment, so that's my noise floor for comparison. Otherwise, are there other pumps that fit this bill? (don't need tons of flow but this is a pretty restrictive system) addendum: fyi, my current desktop chiller (pump plus 2 120 fans) measured ~65 dB with my cheap meter. I'm guessing anything I buy will beat that by a huge margin.