Recommended Pump

[Delphinus]

I have both a Mak4 and a Mag18 (submerged), but interestingly I've never really compared them noisewise. I guess in my own (very subjective) measurement I don't really notice a significant difference between those two pumps, both definitely have a small contribution to the ambient din of the room, but there are really too many competing variables to really say anything meaningful (fan noise, other pumps, etc.) about comparing those two pumps to each other directly. They seem about the same, actually. I'm surprised you can hear the Mak4 in another room, that sounds way noisier than the one I have, which enclosed in a stand, barely seems noticeable outside the stand.