Kenwood - KAC-531 Class D Digital Mono Amplifier with Variable Low-Pass Crossover and Bass Knob - Silver
Customers are saying
Customers consistently note the Class D Digital Mono Amplifier with Variable Low-Pass Crossover delivers a quality sound experience. The amplifier is well-regarded for its audio performance.
Features
Mono Block Class-D Amplifier
Efficient design provides clean, stable bass power with minimal heat output.
Variable low-pass-filter crossover
Lets you easily adjust the audio frequency from 50Hz to 200Hz for flexible sonic customization.
500W total power
RMS rating of 500W x 1 @ 2 ohms, for robust audio.
100dB signal-to-noise ratio
Offers crisp audio.
Class D circuitry
Ensures reliable power handling.
Bass Boost EQ
Dial in deeper, harder-hitting bass with adjustable boost frequencies.
Subsonic Protection Filter
Helps prevent distortion or mechanical stress on ported or high-excursion subwoofers.
Speaker-Level and RCA Inputs
Compatible with both aftermarket receivers and factory head units without RCA outputs.
Thermal & Overload Protection
Kenwood safety circuitry ensures stable, long-term operation.
Specifications
- Continuous Watts x Channel @ Ohms300 Watts x 1 @ 4 OhmAmplifier ClassDNumber Of Channels1Bass BoostNoneBridgeableNoLow-Pass CrossoverVariable
Reviews
Rating 4.9 out of 5 stars with 7 reviews
- Sound Quality (4)
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Compare similar products

Upgrade your in-car audio with the Kenwood KAC-531 Class D Digital Mono Amplifier. Because of its construction, it is capable of up to 500 watts RMS power at 2 ohms and will surely give your subwoofer the energy it needs for a full, deep bass. Since this amplifier is Class D, it runs efficiently, providing good power handling without excessive heat generation. This makes it perfect for powering a subwoofer from a compact automotive setup. It features a variable low-pass crossover to let you tailor the frequency output from 50Hz to 200Hz to your taste and capability of the subwoofer. The KAC-531 is compact in design for easy installation and will even fit in tight spaces with no compromise on performance. Boasting an impressive 100dB signal-to-noise ratio, this amp keeps your audio crisp and clear, distortion-free; the included remote bass control lets you dial in the perfect bass level from your seat. Whether you're updating a sound system or swapping out an older amp, the Kenwood KAC-531 yields high performance value.

Enhance music with this KICKER CX-Series Mono amplifier. The three-second delay when turning this device on or off eliminates unwanted interference, while the subsonic filter removes potentially damaging frequencies. This KICKER CX-Series Mono amplifier has a compact design for easy installation, and the Fail-safe Integration Technology-PLUS provides compatibility to work with almost any radio.

The GM-DX871 is a 1-channel subwoofer amplifier that can deliver up to 800 watts RMS to your subwoofer, providing powerful bass with a strong and heavy beat. CTA-2006 compliant, this highly efficient Class D amplifier offers impressive, high-quality power in a compact chassis. The speaker-level inputs allow you to install this amp in a factory system without RCA connections. The built-in low-pass filter lets you optimize the sound for your vehicle's interior. Additionally, a wired bass control remote enables you to easily adjust the amount of bass from the subwoofer output. The GM-DX871 amplifier uses high-current, high-grade electronic components and gold-plated RCA connections to ensure maximum performance.

Bring the sound inside your car to a higher level with the Kenwood KAC-334 Class D bridgeable multichannel amplifier, capable of 600 watts maximum power for crystal-clear and powerful sound, enhancing your drive. Its compact design allows versatile installation, and variable crossovers let you fine-tune your audio settings for optimal sound quality. The amplifier's Class D efficiency means plentiful power output without generating a lot of heat. It powers your speakers or subwoofer for dynamic and distortion-free performance.
| Pros for Kenwood - KAC-531 Class D Digital Mono Amplifier with Variable Low-Pass Crossover and Bass Knob - Silver | |||
|---|---|---|---|
| Sound Quality | Sound Quality, Power, Size, Ease of use, Price | Sound Quality, Power, Size, Ease of use, Price | Overall Performance |
| Cons for Kenwood - KAC-531 Class D Digital Mono Amplifier with Variable Low-Pass Crossover and Bass Knob - Silver | |||
| There were no cons for this product— | There were no cons for this product— | Heat | There were no cons for this product— |










































































