I used it in my 8 for a while but decided to get rid of the sub. This amp is a Memphis Audio PR150.2. It provides 150Wx2 or 300x1 bridged. It features the following:

High Pass Filter
Low Pass Filter
Full Range (No Filter)
Bass Boost
Variable Low Pass Filter
Variable High Pass Filter
Low and High Level Inputs
Remote Gain Control Capability

$75 Shipped