Check the listing for details. SoundXtreme Digital Bass Machine Processor ST-AP5. Condition: New. Listed at 46.52 USD. SoundXtreme Digital Bass Machine Processor ST-AP5 ✓ Free 60 Day Returns ✓ Free Express Shipping Description: DIGITAL BASS MACHINE PROCESSOR BY XTREMEVISION! Features: Dash Mount Remote Control | Bass Level & PFM Subsonic Filter | Bass Equalization CircuitBass Output Control | Bass Output Control | PFM Subsonic Filter ControlParametric Bass Controls | PWM High Head Room Power Supply | Output Level 13.5 VoltFrequency Response: 10HZ-100KHZ | THD: 0.003% & S/N @ 130DBBalanced Input Noise Rejection AT60DB Product Details: Brand: SoundXtremeBack Material Type: BasswoodHand Orientation: RightNumber of Strings: 1Product Dimensions: 2.8"L x 4.2"W x 1.4"HItem Weight: 1.8 poundsProduct Dimensions: 2.8 x 4.2 x 1.4 inchesItem model number: ST-AP7Date First Available: August 30, 2013Back Material: BasswoodNumber of Strings: 1Size: 5.2 x 3.9 x 1.8 inches