I used to have a first-gen Basslink and liked it a lot. These new Basslink II units with the optional 4 channel amp installed seem perfect for empeg installs. You need an external amp anyway, so you might as well get this package for about $400 and get a compact sub solution as well.

Crutchfield have been selling the Basslink II and amp module as a package deal for the past couple months for $400. It's a pretty compelling deal in my opinion.