Wow, I must've got a 'loud' Quiet one 3000, I have it running to my fuge, and I can hear that over my mag 12 return pump!!!
But me personally I would rather have something reliable then 'quiet'.... I have the same 2 mag 12's running for 4 years,, only shut off when the power goes out, and another 12 that has been going for over a year,,,
I took a chance with the 3000, and it seems good so far,, the numbers show that it's more efficient then the mag7. and cheaper..... time will tell....