Kenwood KAC-531 Mono Class D Subwoofer Amplifier 1000W Max 500W RMS 2-Ohm Stable
The Kenwood KAC-531 is a compact and efficient mono Class D amplifier designed to bring powerful, clear bass to your vehicle's sound system. Delivering up to 500 Watts RMS at 2 ohms, this monoblock is built to drive a wide variety of subwoofers with absolute precision. Despite its small footprint—measuring just over 8 inches wide—the KAC-531 is packed with high-end audio technology, including high-quality PMLCAP polymer multi-layer capacitors and a magnetically shielded output coil that significantly reduces interference and distortion for a purer low-end response.
Installation is streamlined thanks to the one-sided connection layout, which keeps all power and signal wires on a single flank for a cleaner look and easier management. The KAC-531 is incredibly versatile, featuring signal-sensing speaker-level inputs that allow for seamless integration with factory head units without the need for a separate remote turn-on wire. With a built-in infrasonic filter to protect your subs from damaging ultra-low frequencies and a variable bass boost to dial in the perfect amount of punch, the KAC-531 is a reliable, high-performance foundation for any bass-focused car audio upgrade.
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Features:
- Powerful Mono Output: Delivers 500 Watts RMS at 2 ohms, providing high-energy drive for single or dual subwoofer configurations.
- Class D Efficiency: Optimized digital circuitry generates massive power while producing very little heat, allowing the amp to fit in tight spaces.
- Signal-Sensing Turn-On: Simplifies installation by automatically powering on the amplifier when an audio signal is detected from factory speaker wires.
- Advanced Noise Suppression: Magnetically shielded output coil prevents interference from radiating, ensuring your bass stays clean and noise-free.
- Infrasonic Filter (25Hz): Enhances system efficiency and protects subwoofers by cutting out non-audible frequencies below 25Hz.
- Audiophile Grade Components: Uses PMLCAP capacitors to decrease distortion, delivering more realistic and detailed low-frequency sound.
- One-Sided Terminal Design: Groups all connections on one side to make wire routing more intuitive and the final installation much cleaner.
- Variable Bass Boost: Includes a built-in control to add up to +18dB of boost at 40Hz, allowing you to customize the impact of your low end.
- Remote Level Control Ready: Compatible with the optional KCA-RC01A wired remote (sold separately) for instant bass adjustments from the driver's seat.
- Secure Hex-Screw Terminals: Gauge-style terminals lock your power and speaker wires into place for a vibration-resistant, high-conductivity connection.
Specifications:
- Amplifier Class: Class D
- Number of Channels: Mono (1-Channel)
- Maximum Power Output: 1000 Watts
- RMS Power Output (4 Ohms): 300 Watts x 1 (20Hz - 200Hz, 1.0% THD)
- RMS Power Output (2 Ohms): 500 Watts x 1 (100Hz, 1.0% THD)
- Frequency Response: 20Hz - 200Hz (+0dB, -3dB)
- Signal-to-Noise Ratio: 100 dB (Reference: Rated Power into 4 Ohms)
- Low-Pass Filter: Variable 50Hz - 200Hz (-24dB/oct)
- Infrasonic Filter: Fixed 25Hz (-24dB/oct)
- Bass Boost: 40Hz, 0dB to +18dB
- Input Sensitivity: RCA (0.2V - 5.0V), Speaker Level (4.0V - 12.0V)
- Power/Ground Terminal: 4-6 AWG Capable (M6 Hex Screw)
- Speaker Terminal: 8-16 AWG Capable (M4 Hex Screw)
- Dimensions: 8-3/8" W x 2-1/16" H x 5-7/8" D
- Weight: 3.3 lbs (1.5 kg)
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