KICKER
Kicker LX500.4 4-Channel Amplifier - 4x125 Watts Full Range 51LX5004
Kicker LX500.4 4-Channel Amplifier - 4x125 Watts Full Range 51LX5004
Regular price
$599.99 USD
Regular price
$599.99 USD
Sale price
$599.99 USD
Unit price
per
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The KICKER LX-Series is a perfect marriage of SQL design and high-powered output, utilizing feedback from the industry to deliver the most requested features while maintaining the highest performance possible. All multi-channel amplifiers are bridgeable and come with a wired control center (LXCC).

From the Ground Up
The LX-Series represents KICKER’s high-power premium amplifier line designed in-house from the ground up. Precision control, next-level flexibility, designed for performance, built to last.
- Incrementally dial in entire system with the included LX Control Center
- Class-D design for lower current draw, longer playing times, and lower operating temperatures
- Gain-match LEDs show you perfect gain setting
- Customize the appearance with reversible center panel and choice of 11 RGB LED accent colors
- Equipped with FIT+™ technology, accepting low- and high-level signals up to 40V, with full differential inputs created to eliminate unwanted noise for crystal-clear sound
- LX features choice of turn-on modes and comprehensive protections for thermal, circuit, and voltage stability, ensuring reliable performance

Comes with the LX CONTROL CENTER (LXCC)
- Diagnostic Readouts: Monitor battery voltage, LED output clip indication, amp temperature, and protection status in real time
- Precision Control: Adjust gain trim, left-channel time delay, and selectable crossover type, slope, and frequency. Allows for both HP, LP or BP crossovers for all full-range channels
- Cable Length – integrated 3.28 feet (1m), directly into amp
Specifications
LX 500.4 white paper |
51LX5004 Whitepaper PDF |
RMS Power [Watts/Channel] @ 14.4V |
2Ω Stereo: 225 x 4 4Ω Stereo: 125 x 4 4Ω Bridged: 450 x 2 |
Dynamic Power [Watts] |
1100 |
Frequency Response [Hz] |
20–20k |
Signal-to-Noise Ratio (a-weighted, re: rated power) |
>95dB |
Signal-to-Noise Ratio (ref: 1W output) |
>75dB |
Dimensions [in, cm] |
Height: 2-3/8 (6 cm) Width: 8-7/16 (21.4 cm) Length: 9-7/16 (24 cm) |
Input Sensitivity |
High level 1V–40V Low level 125mV–5V |
Variable Electronic Crossover |
24dB/octave Linkwitz-Riley Each channel pair Off/HP/LP/BP: • HP: 20–5kHz • LP: 40–5kHz Selectable Topology: 12, 18, or 24dB/oct Butterworth; 12 or 24dB/oct Linkwitz-Riley |
KickEQ+™ |
Not applicable for LX500.4 (no sub channel) |








