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Kicker 48KXMA800.4

KXMA Series 4-channel marine amplifier — 100 watts RMS x 4

Item # 20648KXM84

Kicker's KXMA800.4 marine 4-channel amplifier will bring brilliance and clarity to your sound, powering four...

Kicker's KXMA800.4 marine 4-channel amplifier will bring brilliance and clarity to your sound, powering four...

Item # 20648KXM84

In stock
$569.99

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About the Kicker 48KXMA800.4

Gobs of power for fun on the water

Kicker's KXMA800.4 marine 4-channel amplifier will bring brilliance and clarity to your sound, powering four speakers with 100 watts RMS each. You can also set up this amp with two channels powering full-range or component speakers, and two channels bridged together to power a subwoofer with up to 400 watts RMS. This beefy amp delivers lots of solid wattage, no matter how demanding your speakers are.

Gobs of power for fun on the water

Kicker's KXMA800.4 marine 4-channel amplifier will bring brilliance and clarity to your sound, powering four speakers with 100 watts RMS each. You can also set up this amp with two channels powering full-range or component speakers, and two channels bridged together to power a subwoofer with up to 400 watts RMS. This beefy amp delivers lots of solid wattage, no matter how demanding your speakers are.

Stays cool under pressure

This reliable and compact KXMA Series rocker will run cool even when pushed hard, thanks to its high-mass heatsink, high-tech internal components, and efficient full-range Class-D amp technology.

Made for marine use

The KXMA800.4 features a conformal-coated circuit board for improved water and dust resistance, plus corrosion-resistant power connections, a gasket-sealed front cover, and stainless-steel mounting hardware that won't rust all over your boat's gel coat or carpeting.

Connection perfection

Kicker employs their Fail-Safe Integration Technology (FIT2™) to reject noise and stop any interference generated by your boat's electronics, so you'll enjoy your music clean and pure. Speaker-level inputs make it possible to hook this amp up to almost any stereo receiver or radio. Kicker also helps you set this amp's gain properly, by offering free test tones for downloading. You play a tone and turn the gain up until the gain knob glows red. Then, you turn it down until it just goes out, and the amp's gain is set perfectly.

Versatile controls behind the folding door

A gasket-sealed front door gives you quick and easy access to your amp's controls. You can tune for almost any kind of speaker, as the steeply-sloped high- and low-pass filters offer a wide range of adjustment. The filter sections for the Amp 2 channels can be set up for bandpass operation — where both the high- and low-pass filters are engaged to allow only the frequencies between them to play — for optimizing the signal for midrange speakers in a 3-way system.

READ LESS

Product highlights:

  • 4-channel marine amplifier
  • 100 watts RMS x 4 at 4 ohms (200 watts RMS x 4 at 2 ohms)
  • 400 watts RMS x 2 bridged at 4 ohms (4-ohm stable in bridged mode)
  • Class D amp technology
  • gain knobs also function as clip lights
  • Amp 1:
    • variable high- or low-pass filter (10-500 Hz, 24 dB/octave); 10x switch
  • Amp 2:
    • variable high-pass filter (10-500 Hz, 24 dB/octave)
    • variable low-pass filter (40-500 Hz, 24 dB/octave); 10x switch
    • bandpass engages both high- and low-pass filters
  • variable bass boost (0-6 dB at 40 Hz) on all channels
More Features:
  • weather-resistant conformal-coated circuit boards
  • front-mounted controls protected behind gasket-sealed fold-down door
  • Fail-Safe Integration Technology eliminates noise from your vehicle's electrical system
  • preamp and speaker-level inputs (speaker wire to RCA adapter required for speaker-level input)
  • wiring, hardware, and fuse not included with amplifier
    • 4-gauge power and ground wires and a 120-amp fuse recommended
  • dimensions: 8-5/16"W x 2-1/8"H x 11-9/16"D
  • warranty: 2 years
  • Our 60-day money-back guarantee
  • MFR # 48KXMA8004

What's in the box:

  • 4-Channel marine amplifier
  • Four 2" Stainless steel screws
  • 4 Flat-washers
  • 3mm Hex key
  • Amplifier information sheet (English/ Spanish/ French/ German)
  • Power chart
  • Kicker power certification

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Features

Marine Amplifier: The Kicker KXMA800.4 (48KXMA8004) is a 4-channel marine amplifier, effectively two 2-channel amplifiers built into one chassis (labeled Amp1 and Amp2). Any pair of channels can be bridged, so it can be configured to power 4-channels, 3-channels, or 2-channels. The KXMA series amps are designed for the marine environment and include ABYC/NMMA-compliant power and ground terminals, anti-corrosive inputs and outputs, gasket protected controls, conformal-coated circuit boards, stainless-steel mounting screws, and a UV-treated aluminum chassis.

Note: Keep in mind, marine amplifiers are not waterproof, and should not be mounted where they will likely get wet.

Class D Amplification: This amp features a Class-D design, efficiently providing ample power in a compact chassis. The power output is as follows:

  • 100 watts RMS x 4 into 4 Ohms (1 kHz, @14.4V, ≤ 1% THD+N)
  • 200 watts RMS x 4 into 2 Ohms (1 kHz, @14.4V, ≤ 1% THD+N)
  • 400 watts RMS x 2 into 4 Ohms bridged (1 kHz, @14.4V, ≤ 1% THD+N)

Controls & Indicators:

  • Input Level: 2-position switch; select High (speaker-level) or Low (line-level)
  • Fader: On/Off switch; used to set the number of input channels connected; Off-Amp1 input feeds all channels; On-each amp's input will be independent
  • Auto Turn-on: one 3-position switch:
    • +12V: amp turns on when +12 volts is supplied to the remote (REM) terminal on the amp (preferred method)
    • DC Offset: amp turns on when it sees the DC Offset voltage from a speaker-level input signal (typically the second best option)
    • Audio (Signal Sense): amp turns on when it detects audio from a speaker-level input signal (input gain must be set correctly for this method to work)

      Note: If using either the DC Offset or Audio methods of powering the amplifier On/Off, the REM terminal becomes a +12V output that can be used for activating additional amplifiers.

  • Protection LED (PRT): red Protect LED indicates a problem:
    • Flickering: indicates low-voltage from the battery, either from a low battery or a weak power/ground connection
    • On Solid: indicates overheating, shorted speaker output, or voltage not in the 10-16 volt range

Amp1 Controls: Amp1 and Amp2 have independent controls:

  • Input Gain: rotary dial; continuously variable from 125mV to 5V with the Input Level switch set to Low; 250mV to 10V with the Input Level switch set to High; each gain control has an LED backlight to indicate the signal is clipping
  • Crossover Switch: 3-position switch; select Off, High Pass, or Low Pass; the slope is 24dB/octave
  • Frequency: rotary dial; range depends on Frequency Range switch; continuously variable from 10-500 Hz (x1), or 100-5,000 Hz (x10)
  • Frequency Range: 2-position switch; sets the frequency range for the filter to x1 or x10
  • KickEQ+ Bass Boost: rotary dial; increase the bass level between 0dB and +6dB; centered at 40 Hz

Amp2 Controls:

  • Input Gain: rotary dial; continuously variable from 125mV to 5V with the Input Level switch set to Low; 250mV to 10V with the Input Level switch set to High; each gain control has an LED backlight to indicate the signal is clipping
  • Crossover Switch: 4-position switch; select Off, High Pass, Low Pass, or Bandpass; the slope is 24dB/octave
  • HP Frequency: rotary dial; continuously variable from 10-500 Hz
  • LP Frequency: rotary dial; range depends on Low-Pass Range switch; continuously variable from 40-500 Hz (x1), 400-5,000 Hz (x10)
  • Low-Pass Range: 2-position switch; sets the frequency range for the low-pass filter to x1 or x10
  • KickEQ+ Bass Boost: rotary dial; increase the bass level between 0dB and +6dB; centered at 40Hz

Wire Connections: The KXMA800.4 has screw-down terminals for the power, ground, turn-on (REM), and speaker outputs. The Power and Ground terminals accommodate up to 4-gauge wire (which Kicker recommends) and the remote and speaker terminals accommodate up to 8-gauge wire. The power and ground terminals are ABYC/NMMA compliant for marine installations.

Fuse: The amplifier doesn't have a fuse on the chassis, therefore a 100-amp fuse must be installed in-line on the power wire next to the battery.

Note: Currently Kicker will extend the standard warranty by an additional year (for a total of three years) when a qualifying Kicker installation kit is purchased with the amplifier.

Input Signal: The amp accepts either high (speaker-level) or low (line-level) voltage input signals on the two pair of RCA inputs, selectable using the input level switches on the side of the amp. When using a speaker-level input signal, add the optional Kicker KiSL speaker-level to RCA adapter (sold separately). The input sensitivity is 0.125-5 volts (low) or 0.25-10 volts (high).

Line Out: A single pair of RCA Output jacks is provided as a "pass-thru" for the incoming signal, letting you run the signal out to additional amplifiers.

Dimensions:

  • Width: 11.58"
  • Height: 2.19"
  • Depth: 8.26" (8.78" including wire)

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Customer Q&A

2 questions already asked

Q
Can I use a marine amp in a car?
[ Matt  Apr 18, 2022 ]
1 answer
A
Yes- but you might find the same size for a little cheaper if not Marine grade. I believe the "marine" means it has semi water resistant build, stainless steel bolts, sealed tighter to keep salt air out etc.- don't really need that on land. This amp is very nice though- I am happy with it.
[ jdavis  Apr 19, 2022 ]
Q
Can you connect a PA microphone to this amp?
[ Zach  Jan 01, 2022 ]
1 answer
A
This amp does not have an input that will work with PA microphones. It could work with a preamp output for a mixer or similar device that can take microphone audio and make it preamp level. I recommend contacting an advisor by calling 1-800-324-9695 to get a personal recommendation
[ Paul  Jan 08, 2022 ]  Staff

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