Kicker LX850.1 Amp 1 Channel Mono Subwoofer Car Amplifier up to 850w RMS
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The Kicker LX850.1 is a Class-D mono subwoofer amplifier from the Kicker LX-Series, producing up to 850W RMS at 1 ohm. It includes the LXRC dash remote with SHOCwave2.0 bass restoration.
This listing is the LX850.1. The LX-Series mono amplifier range is also available in higher outputs — see the Kicker LX1250.1 or LX1650.1.
Key specifications
- RMS power @ 14.4V: 850W x 1 at 1 ohm, 500W x 1 at 2 ohms, 300W x 1 at 4 ohms
- Dynamic power: 1100W
- Frequency response: 10–160Hz (+0/–1dB)
- Crossover: low-pass 40–160Hz, 24dB/octave Linkwitz-Riley
- Subsonic filter: 10–80Hz, 24dB/octave
- KickEQ+ bass boost: 0–6dB, centre 20–80Hz
- Inputs: high level 1V–40V, low level 125mV–5V (FIT+ differential)
- Dimensions: 6 cm H x 21.4 cm W x 24 cm L
- Included: LXRC remote with 6m RJ45 cable
LX850.1 Mono Amplifier
All LX-Series monoblock amplifiers include the LXRC remote level control featuring SHOCwave2.0™. The LX-Series is Kicker's high-power premium amplifier line, balancing SQL design with high-output performance.
From the Ground Up
The LX-Series was designed in-house from the ground up as Kicker's flagship amplifier range. Built for precision control, flexibility and long-term reliability.
- Monitor and adjust with the included LXRC Dash Remote
- Class-D design for lower current draw, longer playing times and lower operating temperatures
- Gain-match LEDs show the correct gain setting at a glance
- KickEQ+™ parametric bass boost 0–6dB
- Reversible centre panel and choice of 11 RGB LED accent colours
- FIT+™ technology accepts low- and high-level signals up to 40V, with differential inputs to eliminate unwanted noise
- Choice of turn-on modes, plus thermal, circuit and voltage stability protections
Comes with the LX Remote Control (LXRC)
- Dash-mounted remote for fingertip bass level adjustment
- SHOCwave2.0™ (Sub-Harmonic Octave Creation) — Kicker's second-generation digital bass restoration algorithm, recovering lost low-bass frequencies
- Battery voltage displayed in a fuel-gauge-style readout
- RGB LED brightness control
- Output clipping indicator to prevent distortion and protect your system
- 6m (19.75 ft) RJ45 cable included
Explore the full range in Kicker Amplifiers.
Specification
| Frequency Response | [Hz] 10–160, +0/–1dB |
|---|---|
| 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) |
More specs
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What's Included
- LX850.1 Mono Amplifier
- LX Remote Control LXRC
- 19.75 feet (6m) RJ45 cable
Kicker
About the Kicker KA51LX8501
From our tech experts at CEN
A monoblock amplifier for subwoofer duty, rated at 850w RMS. Everything it makes goes to the bass.
Who it suits
Anyone adding a subwoofer that needs real power behind it rather than a compact powered unit.
Our tech experts advise
Published power figures mean little until the amplifier is matched to the speakers and the gains are set with a meter rather than by ear. It needs a fused feed from the battery on the correct cable gauge, the part we most often see done badly. Installation is priced per vehicle, so get in touch with your make, model and year and we will confirm what it needs. See car audio installation.
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Have it Fitted By Our Team
Our team fits car audio, stereos, dash cams and vehicle security at our workshop in Beeston, Nottingham. Tell us your vehicle and we'll confirm the parts and a fitted price.
- 1
Tell us your vehicle
Make, model and year, and what you'd like fitted.
- 2
We confirm the parts
Fascia, wiring and interfaces checked for your car, with a fitted price.
- 3
Fitted at our workshop
Bring it to our Beeston workshop and we do the rest.
Unit 25 Technology Drive, Beeston, Nottingham NG9 1LA
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Frequently Asked Questions
Q: How do I choose the right amplifier for my speakers or subwoofer?
A: Match the amplifier's RMS output per channel to the RMS handling of your speakers or subwoofer at the same impedance. The Specification tab lists the power figures. If in doubt, contact CEN with your setup and we will recommend a match.
Q: What wiring do I need to install this amplifier?
A: You will need an amplifier wiring kit sized to the amplifier's power draw, typically including power and earth cable, a fuse, RCA leads and a remote wire. CEN stocks complete wiring kits, and the amplifier's fuse rating is the guide to the cable gauge required.
Q: What class of amplifier is this and does it matter?
A: Class D amplifiers are compact and efficient, ideal for subwoofers and modern installs. Class AB designs are traditionally favoured for outright sound quality on mid and high frequencies. The class is listed in the Specification tab where provided.
Q: Will an amplifier work with my factory head unit?
A: Yes, in most cases. If your head unit has no RCA outputs you will need a line output converter to feed the amplifier a clean signal. CEN stocks line output converters and can advise the right one for your vehicle.
Q: Can CEN install this amplifier?
A: Yes. CEN offers professional amplifier installation from our Nottingham premises, including secure mounting, wiring and setup. Contact us to book.
Q: How much power does the Kicker LX850.1 produce?
A: At 14.4V it delivers 850W RMS at 1 ohm, 500W RMS at 2 ohms and 300W RMS at 4 ohms, with 1100W dynamic power.
Q: Does the LX850.1 come with a bass remote?
A: Yes. The LXRC dash remote is included with a 6m (19.75 ft) RJ45 cable. It adjusts bass level, runs SHOCwave2.0 bass restoration, shows battery voltage, controls the RGB LED brightness and has an output clipping indicator.
Q: What bass controls does the LX850.1 have?
A: A variable 40–160Hz low-pass crossover (24dB/octave Linkwitz-Riley), a 10–80Hz subsonic filter and KickEQ+ parametric bass boost of 0–6dB, centred anywhere from 20 to 80Hz.
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