• Kicker LX 51LX12005 5-Channel Class D Amplifier, 125W x 4 + 700W RMS
  • Kicker LX 51LX12005 5-Channel Class D Amplifier, 125W x 4 + 700W RMS - product image 2
  • Kicker LX 51LX12005 5-Channel Class D Amplifier, 125W x 4 + 700W RMS - product image 3
  • Kicker LX 51LX12005 5-Channel Class D Amplifier, 125W x 4 + 700W RMS - product image 4
  • Kicker LX 51LX12005 5-Channel Class D Amplifier, 125W x 4 + 700W RMS - product image 5
  • Kicker LX 51LX12005 5-Channel Class D Amplifier, 125W x 4 + 700W RMS - product image 6
  • Kicker LX 51LX12005 5-Channel Class D Amplifier, 125W x 4 + 700W RMS - product image 7
  • Kicker LX 51LX12005 5-Channel Class D Amplifier, 125W x 4 + 700W RMS - product image 8
  • Kicker LX 51LX12005 5-Channel Class D Amplifier, 125W x 4 + 700W RMS - product image 9
1 9

KICKER

Kicker LX 51LX12005 5-Channel Class D Amplifier, 125W x 4 + 700W RMS

Kicker LX 51LX12005 5-Channel Class D Amplifier, 125W x 4 + 700W RMS

$849.99 USD
$0.00 USD $849.99 USD
Sale Sold out
Shipping calculated at checkout.
Before you order

Buy with the right details confirmed

Review the application and system requirements

Confirm the size, power, connections, and included or separately required parts described on this page.

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
View full details