Wide Open Sound · Curated gear
Kicker Car Amplifier 51LX5004
WOS Pick What this amp does in 10 seconds — expand for full specs.
- BrandKicker
- SKU51LX5004
- Channels4
Mei says"Match this amp to your speakers and sub. Wrong power or wiring = weak system — do it once, do it right."
The stuff you'll actually notice
- 4-channel platform.
Product description
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
- 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
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.
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
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 -Learn More / LX Control Center PDF-
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) |
Power breakdown
Inputs, filters & control
Build, wiring & install
Protection & performance
Full specifications
| Amp Channels | 4 |
|---|
| Color / Finish | White |
|---|
Vehicle fitment
| Model | 51LX5004 |
|---|
Support & warranty
Need help choosing or installing?
We build indestructible, IP-rated systems for marine, motorcycle, UTV, and automotive. If you want a matched setup, we’ll guide you to the right gear the first time.
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