Details:

300-watt RMS Class D amplifier
8" down-firing woofer (feet can be repositioned for front-firing operation)
bass-reflex (ported) enclosure
Feed Forward technology maximizes output and improves dynamic performance
Polk Room Optimizer delivers punchy bass no matter where you place the sub in your room
Night mode dynamic range compression
wireless ready with Polk's optional PWSK1 wireless kit
frequency response 30-125 Hz (-3dB)
continuously variable 60-160 Hz crossover
4-position phase switch (0, 90, 180, and 270 degrees)
auto on/off
speaker-level and line-level inputs and outputs
unfiltered LFE (low frequency effects) input
Energy STAR certified
remote control
13-3/4"W x 14-3/4"H x 16-1/4"D
Gear4Less warranty: 5 years woofer, 3 years amplifier