Which skimmer make more noise?

[alpha123]

Hi, I need to know which skimmer makes more noise...for obvious reason. :grinyes: I realize they are very different, but I am only thinking noise right now:

1 a BAK-PAK
or
2 Aqua Medic Turboflotor Protein Skimmer (or similiar 'conventional' type skimmer)

First hand experience would be great. If not, please feel free to guess anyway... It is probably still better than me guessing.:wall:

[Amphiprion]

I have heard the BakPaks in action, and they are fairly quiet. I haven't actually listened to a TurboFlotor (I have seen one going, but the surroundings were relatively loud to begin with). If I had to go from instinct, I'd say BakPaks are quieter--I just don't think they are more effective skimmers, though.