my mag 24 was crazy loud, but it turned out to be factory defect, or actually, more precisely, it had a broken impeller shaft.
It took more then a week to get a replacement, which the mfg shipped out to me prior to my sending back my pump.
Other then that, I have the QO3000 (I think it is the 3k), and it is really quiet.
The MAg did not come with any type of mounting brtacket or padding for vibration or orientation.
You will have to supply your own mousepad or rubber or wetsuit material for that
Good luck,
bill