Kenwood KAC-D3104 Compact 4-Channel Class D Car Audio Amplifier 600W Max

The Kenwood KAC-D3104 is a compact 4-channel Class D amplifier built for clean full-range speaker power in vehicles where space matters. It fits well in OEM-plus upgrades, small system builds, and installs where you want more output and control than a head unit can provide without giving up valuable mounting space.

Its compact chassis, variable crossovers, and bridged capability make it a practical choice for powering front and rear speakers, running a stronger front stage, or bridging channels for higher-output applications where appropriate.

Key Features

• 600 watts max power
• 4-channel Class D amplifier design
• 50W x 4 RMS at 4 ohms
• 75W x 4 RMS at 2 ohms
• 150W x 2 RMS bridged at 4 ohms
• Variable high-pass and low-pass filters
• Bass boost control
• Speaker-level input with signal-sensing turn-on
• Compact chassis for tighter installation spaces
• Hi-Res Audio support with frequency response up to 50kHz

Connectivity & Integration

• Inputs: RCA line inputs and speaker-level inputs
• Signal sensing: Signal-sensing turn-on for easier integration with compatible factory or aftermarket source units
• Channel configuration: 4-channel operation with 4/3/2-channel application flexibility
• Bridging: Supports bridged 2-channel operation at 4 ohms
• Best use cases: Front and rear speaker amplification, active-style upgrades requiring crossover control, or bridged speaker applications within rated impedance limits

Audio & System Control

• Variable high-pass filter: 50Hz-200Hz, 12dB/oct.
• Variable low-pass filter: 50Hz-200Hz, 12dB/oct.
• Bass boost: 40Hz, 0dB to +18dB
• Input sensitivity: 0.2V-5.0V RCA / 4.0V-12.0V speaker level
• CTA-2006 compliant power rating
• Signal-to-noise ratio: 100dB (rated power reference)
• Frequency response: 20Hz-50kHz
• Dual Sigma Drive circuitry for improved damping and output control

Installation & Fitment Notes

• Amplifier type: Compact 4-channel chassis
• Mounting flexibility: Good fit for under-seat, trunk, or other limited-space installations
• Power/ground terminals: M6 screw-type terminal block
• Speaker terminals: M4 screw-type terminal block
• Fuse rating: 20A x 2
• Proper amplifier wiring kit, fuse protection, speaker wiring, and installation hardware are required and sold separately
• Vehicle-specific integration needs vary by source unit, speaker configuration, and mounting location

Technical Specifications

• Amplifier model: KAC-D3104
• Amplifier class: Class D
• Channels: 4
• Max power: 600W
• RMS power at 4 ohms: 50W x 4
• RMS power at 2 ohms: 75W x 4
• RMS power bridged at 4 ohms: 150W x 2
• Speaker impedance: 2 to 8 ohms allowable
• Bridged impedance: 4 to 8 ohms allowable
• Frequency response: 20Hz-50kHz (+0dB, -3dB)
• Low-pass filter: 50Hz-200Hz
• High-pass filter: 50Hz-200Hz
• Input impedance: 10k ohms
• Operating voltage: 14.4V (11V-16V allowable)
• Current consumption: 25A
• Dimensions: 6-11/16" x 2-3/16" x 7-3/8"
• Weight: 2.9 lbs.

Identifiers & Packaging

• Manufacturer Part Number (MPN): KAC-D3104
• UPC: 019048226310
• Sold As: Each
• Included Components: KAC-D3104 amplifier, documentation

Why Buy From MCOR Automotive

• Kenwood Preferred Retailer (online and in-store)
• Experienced with amplifier matching, system planning, and vehicle-specific integration
• Support for selecting the right wiring, speakers, and install parts for a clean, reliable setup