The Recoil SL1789 8? X 9? Compact Under-Seat Active Subwoofer is designed to deliver powerful low-frequency performance in a slim, space-saving enclosure. Built into a tough all-aluminium frame, this compact subwoofer is ideal for vehicles where space is limited but strong bass is essential. With 250 Watts RMS power, the SL1789 provides impressive output for its size. The integrated 4? X 6? Passive radiator enhances low-end response, producing deeper and more controlled bass compared to traditional compact enclosures. This powered subwoofer includes a wired remote bass control (5m cable), allowing you to adjust bass levels independently from your head unit volume – perfect for fine-tuning your sound while driving. Designed for simple integration, the SL1789 features both high-level and low-level inputs, making it compatible with factory and aftermarket head units. It also includes two automatic turn-on options (DC offset or signal sensing) for straightforward installation. 8? X 9? Active Under-Seat Subwoofer. Built-in 4? X 6? Passive Radiator. 250W RMS Power Output. Low-Level & High-Level Inputs. Remote Bass Control Included (5m Cable). Phase Switch (0° / 180°). Dual Auto Turn-On (DC Offset or Signal Sense). Complete Quick-Connect Wiring Harness Included. Subwoofer Size: 8? X 9? (20.3cm x 22.8cm). Passive Radiator: One 4? X 6? RMS Power: 250 Watts. Frequency Response: 30Hz – 150Hz. Low-Pass Crossover: 50Hz – 150Hz. Phase Switch: 0° / 180°. Dimensions: 12.9? X 9.3? X 3? (330 x 237 x 78mm). Weight: 12.1 lbs (5.5kg).