Kicker 51LX12005 is an LX Series 5-channel Class D amplifier combining four full-range channels with a dedicated subwoofer channel for complete system power.
Key Performance Features
5-channel Class D amplifier platform
Four full-range channels plus one subwoofer channel
Includes LX Control Center and LXRC dash remote
FIT+ technology accepts low-level and high-level signals up to 40 V
SHOCwave2.0 bass restoration on the subwoofer section
System Configuration & Flexibility
Type: 5-channel system amplifier
Application: Full speaker system plus subwoofer system
Amplifier Class: Class D
Bridging: Full-range channels can be bridged at 4 Ω
Power Output
RMS @ 4Ω Stereo: 125 W x 4
RMS @ 2Ω Stereo: 175 W x 4
Bridged RMS @ 4Ω: 350 W x 2
Sub Channel RMS @ 1Ω: 700 W
Sub Channel RMS @ 2Ω: 550 W
Sub Channel RMS @ 4Ω: 300 W
Signal Control & Protection
Selectable crossover types, slopes, and frequencies
Sub channel low-pass crossover and subsonic filter
KickEQ+ parametric bass boost on sub channel
Gain-match LEDs for setup support
Protection monitoring through LX control hardware
Installation Notes
Use proper power and ground wiring sized for amplifier current demand
Mount in a ventilated location with clearance around the chassis
Professional installation and gain setup are recommended
Technical Specifications
Brand: Kicker
Series: LX Series
Model: 51LX12005
Amplifier Type: 5-channel amplifier
Amplifier Class: Class D
Frequency Response: Stereo channels 20 Hz – 20 kHz; sub channel 10 Hz – 160 Hz
Dimensions: 12-5/8 in. L x 8-7/16 in. W x 2-3/8 in. H
Identifiers & Packaging
MPN: 51LX12005
UPC: 713034020233
Sold As: Each
Included Components: Amplifier, LX Control Center, LXRC dash remote, 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
