For music on the go

Whether cruising through waves, sand, or mud — you want to hear your tunes clearly over the noise of having fun. MB Quart's NA3-1000.5 marine amplifier can send four speakers 75 watts each and a subwoofer up to 400 watts, which'll keep the music rockin' no matter where you are. This rugged and compact amplifier utilizes a number of technologies that ensure normal operation no matter what the conditions are — like over/under voltage protection, thermal slow-down (not shut-down), and current limiting on the outputs to protect speakers.

Versatile amp

You can configure this amplifier as a 3-channel amp and send 300 watts each to a pair of high-performance tower speakers, for example, plus 400 watts to a sub. The onboard variable tone controls let you tailor the sound to match your particular speakers and subs. A wired remote lets you control the bass level from the helm.

Marine-tough

Three decades of marine and powersports audio expertise goes into making each MB Quart marine amplifier. Conformal coating protects the internal circuits from water and dirt, while stainless steel hardware resists corrosion in even the saltiest environments. MB Quart designed and tested this amp to stand up to the toughest conditions on the water and off the beaten path.

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Product highlights:

5-channel marine amplifier

75 watts x 4 + 100 watts x 1 at 4 ohms

150 watts x 4 + 200 watts x 1 at 2 ohms

300 watts x 2 at 4 ohms bridged + 400 watts x 1 at 1 ohm

front and rear channels:

variable high-pass filters (50-250 Hz, 12 dB/octave)

subwoofer channel:

variable low-pass filter (50-250 Hz, 12 dB/octave)

variable bass boost (0-12 dB at 45 Hz)

switchable subsonic filter (25 Hz, 24 dB/octave)

wired remote bass level controller included

More Info:

conformal-coated circuit board

weather-resistant construction

preamp and speaker-level inputs

selectable signal-sensing turn-on with speaker-level input

wiring, fuse, and hardware not included with amplifier

10-gauge power and ground leads and a 35-amp fuse recommended

dimensions: 16"W x 2-1/4"H x 5-7/8"D

warranty: 1 year