This BBXW10 SpeakerCraft Subwoofer amplifier is a dedicated mono 250 Watt RMS amplifier designed to drive in-wall or boxed subwoofers. It includes all necessary, and some extra, controls and capabilities to really allow for optimal sound.
The amp has both line and speaker level inputs and outputs, as well as a dedicated LFE line level input. There is a variable low pass crossover control as well as phase, volume limiter and bass boost control. Of course it also has a front panel level control. In addition the amplifier has auto sense to turn on and off the main power when a signal is detected. You can find the full manuals at this site.
Of course being a SpeakerCraft amp, it is designed to be very reliable and to run cool. The condition is really excellent, but just to be safe I'll only rate it an 8. Of course this ad is just for the amplifier, I do NOT have the speaker. I'll include a copy of the owner's manual if desired.
Buyer pays shipping and PayPal fees if they desire to use that service. The current version of this amp, called the Bass Power 250, runs around $900 so this is a real deal for someone.