Upgrade your sound system with this compact Kenwood Marine Motorsports 4-channel amplifier. It delivers 400W total power for crisp, clear tones, and the conformal-coated circuit board keeps out moisture and salt for safe use in both land and water vehicles. This compact Kenwood 4-channel amplifier is easy to install in tight spaces for added versatility.
Q: Does this amplifier have a variable low-pass crossover?
A: Yes, this amplifier has a variable low-pass crossover for flexible operation.
Q: What kind of circuitry does this amplifier use?
A: This amplifier uses Class D circuitry for reliable power handling.
Q: How many channels does this amplifier have?
A: This Kenwood amplifier has 4 channels.
Q: What is the signal-to-noise ratio of this amplifier?
A: This amplifier has a signal-to-noise ratio of 95dB, which ensures clear audio.
Q: What is the total power output of this Kenwood amplifier?
A: This Kenwood amplifier delivers 400 watts of total power.
Q: Can this amplifier be used in a marine environment?
A: Yes, this amplifier is designed for use in both land and water vehicles.
A: Plug and play in the sense that you if: - you do not have an aftermarket head unit with pre-amps, you can still splice the RCAs to your factory wiring harness (but i wouldn’t recommend that, as it would be better to get an aftermarket stereo wiring harness for your unit, they provide more standard color coded cables to splice to, then splice from the RCA to it) - you do have an aftermarket head unit with pre-amps (this means you should already have an aftermarket stereo wiring harness), you can just connect the RCA cables (which are included) from your head unit to the amp Once the audio wires are successfully routed from your head unit to the amp and then back to your harness, all you have to do is: - splice the remote wire (blue) and power wire (yellow) to the stereo wiring harness - splice the ground wire (black) to the stereo wiring harness or ground it to your chassis This process may seem tedious and time consuming, but will save you $ and is also a good way to get into DIY car audio. There are plenty of walkthrough videos on YouTube that you can reference when performing this process, as it is pretty standard. Lastly, if this sounds like it’s out of your comfort zone, Best Buy does provide geek squad installation services (which in my area cost around $130) but you may have to wait a while (sometimes up to a month as they get backed up with orders) in order for them to get to your install. Hope this helps :)

Upgrade your sound system with this compact Kenwood Marine Motorsports 4-channel amplifier. It delivers 400W total power for crisp, clear tones, and the conformal-coated circuit board keeps out moisture and salt for safe use in both land and water vehicles. This compact Kenwood 4-channel amplifier is easy to install in tight spaces for added versatility.

The Pioneer GM-DX874 four-channel amplifier will deliver up to 150 watts RMS to each of your front and rear speakers for powerful music. Highly efficient Class D technology keeps this powerful amp running as cool as it looks, and allows for a compact chassis that fits in a lot of out of the way spaces. The frequency response of this amplifier stretches up to 50,000 Hz, for Hi-Res Audio Certified playback. Pioneer uses high-grade electronic parts and gold-plated RCA connections to ensure maximum performance. Speaker-level inputs allow you to install this amp in a factory system with no RCA connections. The amplifier switches its input mode automatically when it detects the high-level signal, eliminating the need to run a turn-on lead to your receiver or fuse box. Built-in high- and low-pass filters let you adjust the sound for your vehicle's interior, whether you're driving speakers or subs.

Boost the sound of vehicle door speakers with this KICKER four-channel amplifier. The variable bass boost lets you easily tune the system as desired, and Fail-safe Integration Technology-PLUS provides clear sounds with its noise rejection. This KICKER four-channel amplifier features high-efficiency heat sinks, preventing overheating during long periods of use.

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.
| Pros for Kenwood - 400W Class-D Bridgeable Multichannel Compact Marine Motorsports Amplifier with Variable Crossovers - Gray | |||
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| Cons for Kenwood - 400W Class-D Bridgeable Multichannel Compact Marine Motorsports Amplifier with Variable Crossovers - Gray | |||
Customers are pleased with the sound quality, compact size, power, and easy installation of the 400W Class-D Bridgeable Multichannel Compact Marine Motorsports Amplifier with Variable Crossovers. They describe the sound as amazing and clear, appreciate the small size and powerful output, and find the installation process to be simple. While some users have mentioned that the amplifier can get a bit hot, the overall sentiment is positive.
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.
Very very happy with my purchase, easy to use, very compact, sounds great for its size.. I wanted something nice and simple that worked but was not looking to break the bank and was limited on space, this little amp was more than perfect for me, only downside is that it gets really hot and that was just during testing, I mounted it in an easy access place and it’s not enclosed.
Posted by KingKongEk9
Small and compact enough to mount in small a small area and provides plenty of extra power to the speakers to give me the extra power i wanted. Instructions were clear and easy to understand. I mounted the unit under the center console, and ran all the wires where you cannot see them, wanted to keep a factory look.
Posted by Modelbuilder
Great MID-level motorcycle amp. Just make sure to pair it with matching speakers for the best results. Love the bass HP LP filters with full adjustment. 4ch or 2x1ch sub. LOVE IT!
Posted by ShameOnYouBB