MB Quart DS1-204 8" Shallow Car/Truck Subwoofer+Alpine Mono Amplifier+Amp Kit 8" Shallow Mount Car/Truck Subwoofer w/Poly Cone+2" Voice Coil. 8" Shallow Subwoofer. UV Resistant Butyl Rubber Surround. Durable heavy textured powder coat. All new design based on popular RLP shallow subs. Vented aluminum voice coil former. Thermal Formed Polypropylene Cone and Dust Cap. 2 High Temp Dual Voice Coils. Deep Drawn Stamp Steel Basket Mono Car Amplifier. Fourth Generation V-Power Series. Input Sensitivity (RCA Input): 0.15 - 4.0 V. Input Sensitivity (Speaker Level Input): 0.4 - 10 V. Input Impedance: &gt;10k ohms. Frequency Response (+0, -3dB: 1W into 4 Ohms) for Subwoofer: 7 -400 Hz. Damping Factor (10W into 4 Ohms at 100Hz): &gt;500. Signal to Noise (1W into 4 Ohms): &gt;85 dB. Signal to Noise (Rated Power into 4 Ohms): &gt;105 dB Power Indicator: LED Power Indicator. Thermal Control: Multi-stage Power Limits. Bridgeable Amplifier. Includes Birthsheet For Power Verification. 40% Smaller Chassis Design- Smaller Footprint, Same Power. Class D Digital Amplifier. Snap-On Terminal Covers For Clean Install. Dual Internal Error Correction Tech- Helps to Avoid Feedback. Compatible With RUX-KNOB for Bass Adjustment 8 Gauge 2 Channel Car Amplifier Wiring Installation Kit. (1) 17 High Grade Twisted Pair of 100% Copper RCA Cable. 17 8 Gauge Translucent Blue SuperFlex Power Cables. 17 18 Gauge Blue Remote Cable. 17 16 Gauge Clear Speaker Wire. 3 8 Gauge Clear SuperFlex Ground Wire. Gold Plated AGU Heat Resistant Fuse Holder. 60 Amp AGU Gold Plated Fuse. 7 Split Tube Loom Accessories Included: Wire Ties, Ring Terminals, Butt Connectors, Spades, and Grommets. Soft abrasion proof insulating jacket allows for 100% improved flexibility. PVC outer jacket can with-stand an extreme temperature range of -40 to 220 degrees F