JBL MA6004 4-Channel Full-Range Marine Amplifier

• Marinized circuit board
• Stainless-steel hardware
• Variable bass boost
• 12dB built-in variable electronic crossover
• 60W RMS x 4 channels at 4 ohms and 1% THD + N

A great amp at a great price. I connected this amp to the bow thruster battery in my boat since its the most convenient location. Ran it for about four hours with the boat off and the AGM 100 amp hour battery had very little drain and could have gone for another 10. The amp is connected to two Bose 131 marine speakers and two JBL marine speakers. Even at close to full volume I could not hear any distortion. If you want an amazing amp that won't drain your boats battery then this is the one to buy.

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I bought one of these a few years ago and it's still going strong. I have to say I'm impressed, especially for the price.

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I'm by no means an expert on amps. I've only owned probably a half dozen of them over the years. This one seems to be a great amp for the money. I pushes four 7" marine speakers easily. Very loud and clear sound. No buzzing or engine noise. I've had some cheap marine amps that always had a slight buzz in the background. Better grounds, ground loop isolators, you name it wouldn't fix it. Not a problem with this one. No ground loop isolators, No super high end cables trying to get clean sound. Just hooked it up with some decent twisted RCA's to the head. Made sure it had a good ground and the proper sized hot wire for the length of the run. Sounds great.

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Everything met or exceeded expectations. Great amp that's a low drain on my boat's battery.

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Amp was very easy to setup and works without a hitch! I hooked these up to 4 alpine spr-m700 marine speakers and its a perfect combo!