Ecotech Marine MP40w ES operating noise

[Funky_Fish14]

I would like to retract my statement below - My new one is very quiet, only audible within the room... the older one has a problem of some sort and will be undergoing return/exchange.

Originally Posted by Funky_Fish14

I have two MP10wES... My older one is loud enough that it whines when upstairs but I bumped it a little while ago and I dont think I lined it up correctly when I set it up again, because my newer one is only half as loud. I can definitely hear them in the next room though, they are on 100%... it was a bit annoying at first, but I have good ears and low 'annoying noise threshold' lol. It doesn't annoy my folks who hate annoying noises (like the smallest water drip or pump humming), though. Its not obnoxious like loud droning, but its defintely an audible 'whir' as it winds up and down.

Cheers,

Chris