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Kenwood Excelon X302-4 X Series 4-channel car amplifier — 50 watts RMS x 4

Item # 113X3024

Need power, but lack space? Kenwood's Excelon X302-4 four-channel amplifier delivers 50 watts RMS per channel,...

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Need power, but lack space? Kenwood's Excelon X302-4 four-channel amplifier delivers 50 watts RMS per channel,...

7 questions - 11 answers

Item # 113X3024

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$199.00

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About the Kenwood Excelon X302-4

Buck Pomerantz

You'll get big power out of this tiny amp

Need power, but lack space? Kenwood's Excelon X302-4 four-channel amplifier delivers 50 watts RMS per channel, yet still fits almost anywhere in your vehicle. Switch this amp over to bridged, 2-channel mode, and you can power a pair of high-performance speakers or subs with 150 watts RMS each. In 3-channel mode, you can use the amp's front channels to drive a pair of speakers with 50 watts each, and bridge the rear channels to send 150 watts to a sub. This versatility pays off as your system evolves over time.

You'll get big power out of this tiny amp

Need power, but lack space? Kenwood's Excelon X302-4 four-channel amplifier delivers 50 watts RMS per channel, yet still fits almost anywhere in your vehicle. Switch this amp over to bridged, 2-channel mode, and you can power a pair of high-performance speakers or subs with 150 watts RMS each. In 3-channel mode, you can use the amp's front channels to drive a pair of speakers with 50 watts each, and bridge the rear channels to send 150 watts to a sub. This versatility pays off as your system evolves over time.

Fine-tuning included

High-and low-pass filters let you optimize the sound for your vehicle and speakers. When you're running a subwoofer with the rear channels, you can adjust a bass boost to get just the right tone to fit your musical tastes.

Convenient technology

Class D technology ensures that this compact amp will run cool and perform reliably. Kenwood divided the amp's internal circuitry — analog, digital, and power supply — onto separate, non-overlapping circuit boards for improved overall sound quality. The X302-4 accepts input signals via RCA cables from an aftermarket receiver or by way of your vehicle's speaker wiring, so it'll work with almost any mobile audio system. If you do use the speaker-level inputs, the amp can sense the signal and turn itself on, so you won't need to run a separate remote turn-on lead to the receiver or fuse box.

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Product highlights:

  • 4-channel car amplifier
    • 50 watts RMS x 4 at 4 ohms (75 watts RMS x 4 at 2 ohms)
    • 150 watts RMS x 2 bridged at 4 ohms (4-ohm stable when bridged)
  • CTA-2006 compliant
  • Class D amp technology
  • variable high- and low-pass filters (50-200 Hz, 12 dB/octave)
  • variable bass boost on B channels (0-18 dB at 40 Hz)
  • preamp and speaker-level inputs
  • wiring and hardware not included with amplifier
    • 8-gauge power and ground leads recommended
  • fuse rating: 20A x 2
  • 8-7/16"W x 2-1/8"H x 5-15/16"D
  • warranty: 2 years
  • MFR # X302-4

What's in the box:

  • 4-Channel amplifier
  • Two 20-amp ATC fuses (installed)
  • Terminal cover (installed)
  • 8" Speaker level input harness
  • Four 5/8" Screws
  • Instruction manual (English/ French/ Spanish)

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More details on the Kenwood Excelon X302-4

Mark G.

Product Research

Features

CEA-2006 Compliant: CEA-2006 is a system of testing and measurement methods for mobile audio amplifiers. This voluntary standard advocates a uniform method for measuring an amplifier's RMS power output and signal-to-noise ratio. The criteria for measuring power uses a DC input voltage of 14.4 volts and the RMS power output is measured over a frequency range of 20 Hz to 20 kHz (for full range amplifiers), with 1% or less Total Harmonic Distortion plus noise (THD+N). Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4 ohms. CEA-2006 standards allow consumers to compare car amplifiers and receivers under the same conditions (apples to apples).

CEA-2006 Specifications:

  • Power Output: 50 watts RMS x 4 into 4Ω
  • Signal to Noise Ratio: 85 dBA (measured at 1 watt into 4Ω)

Other Specifications: (not using the CEA 2006 criteria)

  • Power Output:
    • 2Ω: 75 watts RMS x 4 (at 1 kHz, 14.4 volts, ≤1.0% THD)
    • Bridged: 150 watts RMS x 2 (into 4Ω, at 1 kHz, 14.4 volts, ≤1.0% THD)
  • Signal to Noise Ratio: 100 dB (at rated power output)

Channel Layout: The 4-channel amplifier is effectively two 2-channel amps (A and B) built into one chassis. Both the A and B channels are bridgeable, so it can be wired as 4-channel, 3-channel, or 2-channel.

Class D Amplifier Design: The amplifier design is Class D, which uses digital switching power supplies. The result is the amplifier runs more efficiently, generating less heat than Class AB amps. The Class D design also allows the amplifier to be built on a small chassis, and installed where space is limited.

Signal Sensing: The amplifier has a signal-sensing turn-on circuit on the speaker level input. When a signal (up to 50 watts) is detected on the speaker level inputs, the amplifier will automatically power on. When the signal is no longer detected, the amp will turn off. This allows you to install the amplifier without a remote turn-on lead if the speaker level input is used.

Controls: The X302-4 features independent controls for the A and B channels:

  • Input Sensitivity: The Input Sensitivity controls let you match the amplifier input to the preamp output level of the source unit. The rotary controls let you adjust the sensitivity between 200mV (0.2V) and 5V, with markings at 0.2V, 0.3V, 0.5V, 1V, 2V, 3V, 4V, and 5V.
  • Selectable Crossovers: The crossovers can be set to high-pass, low-pass, or full range (off). Each crossover's slope is 12dB per octave and the crossover point is continuously variable from 50Hz to 200Hz.
  • Bass Boost (B channels only): The Bass Boost increases the bass signal of the B channels, centered at 40Hz. The rotary control lets you adjust the boost between 0dB and 18 dB.

Connections:

  • Line In: The X302-4 has two pair of line level RCA inputs, A and B. The amp will accept a signal between 200mV and 5V.
  • Power/Ground/Remote Turn-on: The amplifier has screw terminals for the power, ground, and remote turn-on, and will accommodate spade connectors. The power and ground terminals are 0.55" wide and the remote turn-on terminal is 0.34" wide.
  • Speaker Output: Four pair of screw terminals are provided for connecting the speakers. The terminals are 0.34" wide, and accommodate spade connectors. The amplifier is designed for a 4Ω load, but can can handle a 2Ω load.
  • Speaker Level Input: When an RCA line level signal is not available, use the included 8" speaker level input harness.
  • Fuses: Two 20-amp ATC fuses are installed in the amplifier. With the 40-amp fuse rating, an 8-gauge amplifier wiring kit is recommended with a 40-amp (minimum) fuse installed within 18" of the battery.

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Customer Q&A

7 questions already asked

Q
Is the indicator light supposed to be red, blue, or green?
cyclops  Jul 22, 2023
1 answer
A
On this amplifier, the light should be red. However, it is possible that Kenwood may have used a different color of LED during a production run. The LED on this model only indicates that power is on.
zachary  Jul 23, 2023 (Staff)
Q
Planning to install amp to a system that has factory head unit that can not be upgraded have been looking into dsp. Do you recommend a model that works with this amp?
michael  Apr 23, 2023
1 answer
A
Our advisors would be happy to review your vehicle info and audio needs in order to recommend a DSP. There are several viable options, so the more info we have regarding your project, the better we can help. Please reach out to our advisors via online chat or phone at 1-800-324-9695.
zachary  Apr 23, 2023 (Staff)
Q
How do you know if the amp is in protection mode?
r  Apr 18, 2023
1 answer
A
Hi RR, thank you for your question. When the protection function is triggered, the power indicator goes off and the amplifier stops operating.
andrea  Apr 18, 2023 (Staff)
Q
This site says the SNR is 85, but the manual says 100. I assume the manual is correct?
hard  Jul 06, 2021
2 answers
A
The manufacturer is correct
paul  Jul 06, 2021
A
85 vs 100 what? Watts?
terry  Jul 06, 2021
Q
Can thi sbe run as a 3ch amp?
aprilgreg  Jun 24, 2020
2 answers
A
Sorry I haven't answered this yet. I will be finally installing it towards the end of the week. I will be glad to give you the answer at that time. Regards, Steve
steve  Jun 29, 2020
A
Yes it can
richard  Jun 24, 2020
Q
Does this amp accept differential balanced input?
ronald  Apr 28, 2020
2 answers
A
The Kenwood Excelon X302-4 does not offer differential balanced input. You might look into the JL Audio RD400/4, which does have Differential Balanced Input, or you may also want to look into a Wavtech LOC, which does us a balanced differential input design, to minimize signal noise. Please chat with us online or by phone at 1-800-324-9695. We will be happy to answer any questions.
jessica  May 22, 2020 (Staff)
A
I haven't installed it yet. I wish could give you a better answer, but I'm re doing the interior on my 1952 Chevy Pick up and haven't gotten that far along yet. The Cruchfield tech's have always been good at steering you in he right direction, so I feel it will be fine. In a week or so I'll know better.
steve  May 12, 2020
Q
Can I run this in Bi-Amp mode with just 1 set of RCA's going into channel A?
be  Jan 17, 2020
2 answers
A
Yes you only need one set of RCA inputs in order to bridge the amp.
casey  Feb 18, 2020 (Staff)
A
You should be able to. Ours is set up with dual amps.
allen  Feb 14, 2020
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