Gallo SA3 amp

I have a Crowson stereo amp with an LPF that is designed for their shakers/tactile transducers but they aren't that cheap either. $700 for the Gallo unit IMHO isn't too expensive for something designed specifically for it.

The other option I can think of is the Earthquake shaker amp (about 400 bucks?)

I understand what you're saying about the $700. But some of us are married to a women that would be happy with a $500 of the rack surround system. She thinks my system is fine and I'm battling with her to get anything to upgrade my system.

You need to be able to apply some bass management. Perhaps another option (out of the box) is to use an Emotiva preamp with sub out (and use a regular power amp to drive the second coil.

Doggiehowser
Perhaps another option (out of the box) is to use an Emotiva preamp with sub out (and use a regular power amp to drive the second coil.

I was thinking the same thing