PowerBass PS-AWB121 Single 12" Amplified Bass Enclosure Bass is their backbone at PowerBass and their engineers have designed an affordable, yet powerful self contained solution to put a new low in the bottom end of your sound system with PS-AWB loaded woofer boxes. They take a unique design approach and engineer the woofers to fit the box, not the other way around like our competition. This gives our enclosures a deeper, tighter bass that handles more power for your hard earned cash. They match it with a PWM Amplifier to make the power that it takes to get the bass you want. Features - • Single 12" 200 Watt RMS Amplified Bass Reflex Subwoofer Enclosure • Injection Molded PP Cone Woofer • 2" BASV Voice Coil Former • Large Roll Butyl Rubber Surround • Computer Optimized Bass Reflex Enclosure • Durable Aircraft Grade Vinyl Finish • 1-Channel 200 Watt High Efficiency Class A/B Design • High Level (Speaker)/Low Level (RCA) Input • Soft Delay Turn On/Off Circuit • Auto Turn-on (high level input only) • Variable Low Pass Electronic Crossover 50Hz – 200Hz • Variable 12dB Bass Boost EQ @ 45 Hz • Variable Gain Control • Protection Circuit: Impedance Over-load, Speaker Short, Circuit, Thermal Overheating, and DC Output • Variable Wired Remote Gain Control Included • Mounting Hardware Included Specifications - • Inputs: Low Level (RCA)/High Level (speaker level) • Equalization Boost/Cut: 0dB - 12 dB @45 Hz • Subwoofer Frequency Range: 20 Hz - 200 Hz • Power Supply: PWM MOSFET • Bottom Depth: 14.4" • Top Depth: 12.25" • Height: 13.5" • Width: 18.75" • Voice Coil Size: 2" • Material: Injection molded Polypropylene cone • Dimensions (in Inches): 13.5" x 18.75" x 12.25" Top D x 14.4" Bottom D • S/N Ratio: >85 dB • Total Harmonic Distortion: 0.5% at Rated Power • Spl: 86 db • Size: Single 12" • Frequency Response: 30 Hz - 250 Hz • Power Handling (RMS/Peak): 200 / 400 watts