About the Kenwood Excelon XR400-4
Super-slim profile, big-time power
Super-slim profile, big-time power
Kenwood's Excelon XR400-4 4-channel amplifier adds clarity and punch to your car's audio system, as it powers each of your front and rear speakers with 75 watts RMS. As your system changes, you can also use the XR400-4 in 2-channel mode to drive a couple of subs with up to 200 watts RMS each. The XR400-4 can fit in many different places in your car because of its incredibly low profile — it's under 1-1/2" tall.
Designed for optimum efficiency
Kenwood packed this amp with space-saving features. Class D technology reduces the size of the power supply, while the internal heatsink is tilted to reduce height without compromising the amp's cooling system. Recessed power and speaker wire terminals help to further reduce the amp's footprint, protect the connections, and give your installation a neat, professional look.
Controls for the best sound — bi-amp capable
You can contour the sound with high- and low-pass filters so your speakers play efficiently and sound their best. The front and rear channels have separate gain and filter controls so you can adjust for different types of speakers. The XR400-4 also gives you the ability to "biamp" your system, amplifying the tweeters and woofers separately for greater power and control over the sound.
Product highlights:
- 4-channel amplifier
- 75 watts RMS x 4 at 4 ohms (100 watts RMS x 4 at 2 ohms)
- 200 watts RMS x 2 bridged output at 4 ohms (4-ohm stable in bridged mode)
- CEA-2006 compliant
- variable high- and low-pass filters (50-200 Hz; 2.5K-10k Hz, 12 dB/octave)
- Class-D amplifier design
- frequency response: 20-20k Hz
- preamp inputs
- fuse rating: 30A x 2
- 4-gauge power and ground leads recommended wiring and hardware not included with amplifier
- 8-11/16"W x 1-7/16"H x 8"D
- warranty: 90 days
- MFR # XR-400-4
What's in the box:
Kenwood Excelon XR400-4 owner's manual
- Refurbished 4-channel amplifier
- Two 30-amp mini blade fuses (installed)
- 4mm Allen wrench
- 2.5mm Allen wrench
- 2mm Allen wrench
- Four 5/8" Self-tapping screws
- Instruction manual (English/ French/ Spanish)
- Warranty card
Customer reviews for Kenwood Excelon XR400-4
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More details on the Kenwood Excelon XR400-4
Features & specs
Performance | ||
---|---|---|
RMS Power Output (Watts x Channels) |
75 x 4 | |
Peak Power Output (Watts x Channels) | N/A | |
Power at 2 Ohms (Watts x Channels) | 100 x 4 | |
Power at 1 Ohm (Watts x Channels) | --- | |
Bridged Power (Watts x Channels) | 200 x 2 | |
Minimum Impedance Bridged | 4 | |
Minimum Impedance Unbridged | 2 | |
Minimum Impedance | 2 | |
Best Frequency Response | 20-20k Hz | |
THD at Rated RMS Power | 1% | |
Signal to Noise Ratio | 76 dB | |
Input Voltage | 14.4v | |
Features | ||
Amplifier Class | D | |
Low-Pass Crossover Frequency | 50-200 or 2.5k-10k | |
Low-Pass Slope (dB/octave) | 12 dB/octave | |
High-Pass Crossover Frequency | 50-200 or 2.5k-10k | |
High-Pass Slope (dB/octave) | 12 dB/octave | |
Bass Boost | No | |
Bass Boost Frequency | N/A | |
Fan Cooled | No | |
Fuse Rating | 60 | |
Speaker Level Inputs | --- | |
Preamp Outputs | No | |
Width (inches) | 8-11/16 | |
Height (inches) | 1-7/16 | |
Depth (inches) | 8 | |
Parts Warranty | 90 Days | |
Labor Warranty | 90 Days |
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 into a 4-ohm load, with 1% or less Total Harmonic Distortion plus noise (THD+N), and over a frequency range of 20 Hz to 20 kHz, when applicable. Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4 ohms. CEA-2006 allows consumers to compare car amplifiers and receivers on an equal basis. Using CEA-2006 criteria, the Kenwood XR400-4 is rated at 75 Watts RMS x 4 channels with a 76 dBA signal to noise ratio.
Specifications: The manual also lists these non CEA-2006 compliant specifications:
- Power:
- 2Ω: 100 watts x 4-channels (at 1 kHz, with no more than 1% THD, 14.4 volts)
- Bridged: 200 watts x 2-channels (into 4Ω at 1 kHz, with no more than 1% THD, 14.4 volts)
- Signal to Noise Ratio: 100 dB (at rated power)
Class D Amplifier Design: The amplifier design is Class D, which uses digital switching power supplies. The result is much higher efficiency (less heat generated) than Class AB.
4-Channel Amp: The front and rear sections of the amplifier (labeled A and B) have independent gain and crossover controls.
Crossovers: The front and rear crossovers can be independently set to high-pass, low-pass, or turned off (full range). The crossover points are continuously variable with a selectable range, from 50-200 Hz or 2.5-10 kHz and the slope is 12dB per octave.
Aluminum Heat Sink: The aluminum heat sink increases the amplifier's heat dissipation efficiency, increasing the life of the amplifier.
Controls:
- Input Selector: two position switch:
- AB: separate inputs are supplied for the front and rear channels
- A: the signal supplied to input A is fed to both front and rear outputs
- Input Sensitivity: 200mV-5V; front and rear independently adjustable
- Crossover: the front and rear channels have
independent controls for these crossover functions:
- Mode: high-pass, low-pass, or off (full range)
- Frequency Range: low (50-200 Hz) or high (2.5-10 kHz)
- Frequency: continuously variable; 50-200 Hz or 2.5-10 kHz, depending on the setting of the frequency range switch
Inputs and Outputs:
- Signal Input: two pair of RCA preamp inputs; front and rear (labeled A and B)
- Power: set screw terminal; accommodates bare wire up to 4-gauge
- Ground: set screw terminal; accommodates bare wire up to 4-gauge
- Remote Turn-on: set screw terminal; accommodates bare wire up to 10-gauge
- Speaker Output: four pair of set screw terminals (left and right A channels and left and right B channels); accommodate bare wire up to 10-gauge
- Fuses: two 30 amp mini blade fuses
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Customer Q&A
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This amp lives up to the Kenwood reputation of producing clean, distortion-free sound. It's small profile makes for an easy install beneath the seats, and the adjustment options are plentiful and effective. I've tried other products, but I always come back to Kenwood.
Tom L from Avon, CO