Kenwood eXcelon amplifier model X302-4

You will get great power from this small amplifier
Kenwood’s eXcelon amplifier model X302-4 four-channel amplifier offers 50 watts RMS per channel, but still fits almost anywhere in your car. Switch this amplifier to 2-Channel bridge 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 front channels of the amplifier to drive a pair of 50 watt speakers each and connect the rear channels to send 150 watts to a sub. This versatility pays off as the system evolves over time.

Fine Tuning included
High and low pass filters allow you to optimize the sound of your vehicle and speakers. When you run a subwoofer with the rear channels, you can adjust a bass boost to get the right tone to suit your musical tastes.Kenwood Excelon X302-4Convenient technology
Class D technology ensures that Kenwood eXcelon X302-4 compact amplifier works cool and reliably. Compact Kenwood X3024 divided the internal amplifier circuits-analog, digital and power supply — into separate, non-overlapping circuits to improve overall sound quality. The Kenwood X302-4 accepts input signals via RCA cables from an aftermarket receiver or through car speaker wiring, so it will work with almost any mobile audio system. If you use the speaker level inputs, the amplifier can detect the signal and turn on, so you will not need to run a separate remote start cable for the receiver or fuse box. Compared to the previous version x301-4, the signal to noise ratio at 1W is improved from 80dba to 85 dba. Considering that the new amplifier has the same RMS Watts, the SNR can be compared directly. The other improvement we noticed is that the maximum current draw has now been reduced from 25A to 20A. Two more examples of 1W SNR, Alpine s-A32F is 83dba, jl Audio rd400 / 4 at 84dba, both have a higher RMS rating. Kenwood Excelon X302-4They might have better Snr than the Kenwood than 50W rms. Most budget 4 channels are much lower than this rating, but this increase is actually audible to someone we can’t tell. We hope that this information will help someone select an amplifier. Video: Kenwood/YouTube

Kenwood’s X series ultra-high-end amplifiers and speakers that deliver realistic high-density sound and spatial sound impression. The new X series amplifiers are precisely designed for high-resolution audio to create a truly authentic listening experience with every detail and nuance.  Photo: KenwoodKenwood Excelon X302-4

  • 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)
  • 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)
  • RCA and speaker-level inputs
  • 8-gauge power and ground leads recommended (not included)
  • Fuse rating: 20A x 2
  • 8-7/16″W x 2-1/8″H x 5-15/16″D
  • price: $199.00


Kenwood eXcelon X302-4 full specs:

Amplifier Features

Class D AmplifierYes
Full Range Digital AmplifierYes
Load Capability2Ω Stable
Rated power output (4Ω)50W x 4 (4Ω)
Rated power output75W x 4 (2Ω)
Bridged power output (4Ω)150W x 2
High-Resolution Audio certifiedYes
CEA-2006 CompliantYes
Low-pass FilterYes
High-pass FliterYes
Switched Mode Power supplyYes, with Power MOS-FET
Signal Sensing Turn-onYes
Speaker level InputYes
Single Side TerminalsYes
Die-Cast Aluminium Heat SinkYes


Rated power output (4Ω, 14,4V)50W x 4 (20Hz ~ 20000Hz, 1%THD)
Rated power output (2Ω, 14,4V)75W x 4 (1000Hz, 1%THD)
Rated power output (CEA-2006)50Watts RMS x 4 at 4 ohms and 1% THD
Low-pass Filter50~200Hz (-24dB/oct)
High-pass Fliter50~200Hz (12dB/oct)
Bass Boost Circuit40Hz, 18dB (B-Channel)
RCA Input Sensitivity0.2 ~ 5V
Input Impedance10kΩ
Signal to Noise Ratio100dB
Signal to noise ratio (CEA-2006)85dBa (Reference: 1 Watt into 4 Ohms)
Frequency response (+0dB, -1dB)20Hz ~ 50000Hz
Freq. resp. (+0dB, -3dB) (SUB)20Hz ~ 200Hz
Operating voltage14.4V (11V ~ 16V allowable)
Maximum current consumption20A
Installation Size (WxHxD)213 x 53 x 149 (mm)
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