looking for a quieter submersible pump in sump?

[ed99]

I've got a Mag 12 submersible and it makes a lot of noise as well, though I've been told they are as quiet as they get. My tank is in a corner on a hardwood floor so it seems to act like a big speaker. Putting carpet underlay under the sump and wrapping the pump with with a rubber hose has helped reduce the noise, but not as much as I hoped.

Ed