JL Audio ACP112LG-TW1 400W MicroSub+ Amplified Subwoofer Ported-Enclosure System with Single 12" 12TW1 Subwoofer Single 12" Vented Subwoofer Enclosure with Built-In Amplifier | Power Output: RMS: 400 Watts Total | Preloaded with single 12" TW1 Series Subwoofer Driver - 12TW1-0.25 | Built-in DCD Class D amplifier | Vented enclosure with carpet finish Subwoofer Features: Injection molded, mica-filled polypropylene cone | Rubber surround | Cast alloy frame | Long linear excursion capability (0.40 in / 10 mm, one-way) | DMA-optimized motor design | Patented "concentric tube" architecture | Patented "floating cone attach method" technology | Steel mesh grille included Amplifier Features: Input Voltage Range @ RCA Inputs: 70 mV - 1.40 V RMS | Input Voltage Range @ High-Level Inputs: 280 mV - 5.4 V RMS | 12 dB per octave filter slope | Low-pass filter: 50 - 200 Hz Selectable output polarity (i.e. Phase): 0 / 180 | Selectable turn-on modes: Sig / DC / REM | Automatic turn-on (via signal sensing or DC offset sensing) | High level speaker input, w/ molex connection harness | Optional bass remote available, sold separately: JL Audio RBC-1 | Fuse Rating: 30A x 1 Enclosure Features: V-Groove MDF Construction | Flared port entry and exit | Automotive-grade vehicle carpet | CNC-Cut High-Grade MDF | Silver "JL AUDIO Built In USA" embroidery on front baffle | Steel mesh grille mounted with driver | Enclosure Dimensions: 9.25" D x 23.75" W x 15.75" H