Kenwood eXcelon XR401-4 400-Watt Compact 4-Channel Class D Car Amplifier

The Kenwood eXcelon XR401-4 is a compact 4-channel Class D amplifier built for buyers who want real full-range power without giving up installation flexibility. Its low-profile chassis makes it easier to fit in tighter vehicle spaces while still delivering clean output for front and rear speakers, or a bridged setup when the system calls for it.

This amplifier is rated at 75 watts RMS x 4 at 4 ohms, 100 watts RMS x 4 at 2 ohms, and 200 watts RMS x 2 bridged at 4 ohms. Kenwood also equips it with variable high-pass and low-pass filters, speaker-level inputs, signal-sensing turn-on, and an included wired bass knob, making it a strong fit for factory-integration builds and clean aftermarket upgrades.

Key Features

• Compact 4-channel Class D amplifier
• 75 watts RMS x 4 at 4 ohms
• 100 watts RMS x 4 at 2 ohms
• 200 watts RMS x 2 bridged at 4 ohms
• Variable high-pass and low-pass filters
• Speaker-level inputs
• Signal-sensing turn-on
• Wired remote bass controller included
• Compact eXcelon Reference chassis
• 2-year warranty

Connectivity & Integration

• Amplifier type: 4-channel Class D full-range amplifier
• Speaker-level input: Yes, for easier integration with compatible factory or aftermarket source units
• Signal-sensing turn-on: Yes
• Remote level control: Wired remote bass controller included
• Application: Designed for powering front and rear speakers, or bridged channels in aftermarket car audio systems

Power & System Control

• CTA-2006-D rated output of 75W x 4 at 4 ohms, 100W x 4 at 2 ohms, and 200W x 2 bridged at 4 ohms
• Frequency response rated at 20Hz-20kHz (±1dB)
• Variable high-pass filter for dialing in speaker crossover settings
• Variable low-pass filter for flexible system configuration
• Compact design works well in builds where space is limited but clean multi-channel power still matters

Installation & Fitment Notes

• Amplifier type: 4-channel full-range amplifier
• Chassis size: Compact footprint for easier mounting in tight spaces
• Dimensions: 8-11/16" W x 1-3/8" H x 6-5/8" D
• Operating voltage: 14.4V nominal, 11V-16V allowable
• Current consumption: 37A
• Proper power wire, ground, fuse protection, and speaker load configuration should be confirmed before installation
• This amplifier can run four channels of speakers or two bridged channels, depending on system design

Technical Specifications

• Model: XR401-4
• Amplifier class: Class D
• Channels: 4
• RMS power at 4 ohms: 75W x 4
• RMS power at 2 ohms: 100W x 4
• Bridged power at 4 ohms: 200W x 2
• Frequency response: 20Hz-20kHz (±1dB)
• Input sensitivity: 0.2V-5.0V
• Input impedance: 10k ohms
• Signal-to-noise ratio: 100dB
• Dimensions: 220 x 35 x 169mm
• Weight: 1.5kg

Identifiers & Packaging

• Manufacturer Part Number (MPN): XR401-4
• UPC: 019048223296
• Sold As: Each
• Included Components: XR401-4 amplifier, wired remote bass controller, and manufacturer-supplied accessories/documentation

Why Buy From MCOR Automotive

• Authorized Kenwood retailer
• Experienced with amplifier matching, speaker power planning, and clean installation layouts
• Support for choosing the right wiring, speaker load, and integration parts for a reliable setup