Kicker 51LX12501 is an LX-Series mono Class D subwoofer amplifier designed for dedicated car audio bass systems. The 1250-watt mono platform gives loaded enclosures and custom subwoofer boxes a focused power option with included Smart Bass control. Key Performance Features LX-Series mono Class D subwoofer amplifier 1250 W manufacturer-rated mono subwoofer output Smart Bass control included with LX mono amplifiers Designed for dedicated subwoofer systems Premium LX amplifier platform for system-focused installations System Configuration & Flexibility Channels: Mono Primary Use: Car audio subwoofer amplification Application: Loaded enclosures, custom boxes, and bass upgrades System Role: Dedicated mono subwoofer amplifier Power Output Rated Output: 1250 W mono subwoofer amplifier output RMS Output: Verify final RMS output by impedance before matching to a subwoofer Signal Control & Protection Smart Bass remote support on compatible LX mono amplifiers System tuning and protection features designed for high-power audio builds Full-range or subwoofer signal control depends on amplifier model and channel layout Installation Notes Mount with adequate ventilation and secure wiring access Proper power, ground, fuse protection, and subwoofer wiring are required Subwoofer impedance and power handling must be verified before operation Technical Specifications Brand: Kicker Series: LX Model: 51LX12501 / LX1250.1 Product Type: Mono subwoofer amplifier Amplifier Class: Class D Rated Output: 1250 W Identifiers & Packaging MPN: 51LX12501 UPC: 713034020226 Sold As: Each Included Components: Amplifier, Smart Bass control, mounting hardware, documentation Why Buy From MCOR Automotive Authorized retailer for the brands we sell Specialists in car audio, marine audio, and vehicle-specific integration Expert support for amplifier matching, wiring requirements, and clean system setup