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400W Peak Class D Nautic Series Compact 2-Channel Marine and Powersports Amplifier
• 100 watts x 2 channel @ 4 ohm
• 200 watts x 2 channel @ 2 ohm
• Total Power: 400 watts
• Class D 2 ohm Stable 2-Channel Amplifier
270W Peak (90W RMS) 5.25" Club Series 2 Way Coaxial 3-ohm Speakers
$74.99
List price $129.95
Infinity Reference 5030cx (REF5030CX)
390W Peak (130W RMS) 5.25" Reference Series 2-Way 3-ohm Component Speaker System
$99.95
List price $249.95
460W Peak (100W RMS) 4” A Series 2-way 4-ohm Coaxial Car Speakers
$90.00
List price $110.00
270W Peak (90W RMS) 4" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers
$90.00
List price $99.99
240W Peak (80W RMS) 5" DMD Series 2-Way Cocentric Coaxial 4-ohm Speakers
$159.99
450W Peak (150W RMS) 5.25” CS Series 2 Way Coaxial 4-ohm Speakers
$79.96
List price $119.99
400W Peak (100W RMS) 5.25" DS Series 2-way 4-ohm Coaxial Car Speakers (DSC504)
$74.99
List price $84.99
200W Peak (100W RMS) 5.25” PS Series 2 Way Coaxial 2-ohm Powersports and Motorcycle Speakers
$119.96
List price $169.99
750W Peak (250W RMS) 5.25" V-Series 2 Way Component Car Speakers
$99.99
List price $119.99
• 100 watts x 2 channel @ 4 ohm
• 200 watts x 2 channel @ 2 ohm
• Total Power: 400 watts
• Class D 2 ohm Stable 2-Channel Amplifier
The MB Quart NA2-400.2 is a compact, marine-grade Class D 2-channel amplifier designed for powerful, reliable performance in harsh outdoor environments. Delivering up to 200 watts per channel at 2 ohms (400 watts total), it features IPX5 protection, conformal-coated circuitry, and corrosion-resistant terminals to withstand moisture and salt spray. Its advanced Q-Stasis pre-amp stage, PWM MOSFET power supply, and adjustable high- and low-pass filters provide clean, customizable sound, while built-in thermal, overload, and short-circuit protection ensure long-term durability. With flexible two-channel or bridged operation, quick-disconnect wiring, and a rugged aluminum heat sink, the NA2-400.2 is engineered for efficient, low-heat performance in boats, powersports vehicles, and other demanding installations.
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Manufacturer:
Model Number:
NA2-400.2
Weight:
2.12lbs
Internal SKU:
na24002
Internal Product ID:
128347
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Good Amp for Powering Woofers in my 2000 Porsche Boxster
I'm using this unit to power two 6.5-inch woofers that I installed in the doors of my Porsche Boxster. After about a month of use, I'm pleased with the sound quality. The small size made it easy to find a place to mount it in the front trunk.
Verified purchase
99 found this helpful
Great product
I would recommend this to anyone looking for a small but powerful amp. I paired this with 2 6x9's and the sound is amazing.
40 found this helpful
Yes All the way!!!
Ive been installing since 14yrs old. I am 50 now. I've always love small kick ass and cheater amps but I truly love plain and straight 2 and 4 channel anps. Ive been around Adcom, USamps, Zapco, Audiocontrol and Denon.This amp is pure love affair. Price and size and quality. My son is an Eagle Scout lots of camping fishing and outdoors stuff using my car and leaving my soun roof open leaves moisture inside but so what its marine grade I WIN. I even got a 5 channel for his car. I might just buy more to install in my garage. I love it so much!!!!
Verified purchase
38 found this helpful
Awesome product
I replaced a brand new MTX mud100.2 that was near the same wattage and weighed 1/2 as much for the same size. This thing is 100% as pure as it advertises
Verified purchase
32 found this helpful
Packs a Punch
Clean sounding small amp. No distortion or engine noise. It does get warm, but not hot. Currently using it to run two 8" subwoofers and a set of tweeters under the back seat of my Dodge Ram truck. Good bass. Nice balanced sound, when using the High Pass (HP) switch option and dial setting about 1/3 up. It complements well with the MB Quart 6x9 speakers in the doors. Highly recommend.
29 found this helpful
crazy small
running both channels on 2 ohms. This amp screams! using it in my SXS and it was really easy to hide.
Verified purchase
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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:
Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.
