






🌊 Amplify your marine adventures with power and precision!
The MB Quart Marine Powersports Nautic 1 Channel Amplifier delivers up to 400 watts of max power with marine-grade waterproofing and corrosion-resistant connectors. Featuring advanced cooling via an aluminum heatsink and PWM MOSFET power supply, it ensures reliable, distortion-free audio performance in harsh marine environments. Designed for easy installation and seasonal removal, this compact surface-mount amp is the ultimate sound upgrade for boat enthusiasts.




| Number of Channels | 1 |
| Package Type | box" or "envelope |
| Output Power | 4E+2 Watts |
| Minimum Supply Voltage | 0.2 Volts |
| Mounting Type | Surface Mount |
| Voltage | 9 Volts |
| Maximum Supply Voltage | 9 Volts |
| Specification Met | Astm, Ipx5 |
| Material Type | Aluminum |
| Item Dimensions | 2 x 4 x 6 inches |
N**.
great little sub amp
Does a great job of powering a little 8" sub. Probably work for 10-12" also. Small so it fit on a little box and it has built in crossover and external sub gain.
K**L
Awesome little Amp
I used this to power my 10" R2D4 Rockford fosgate sub in my Polaris Rzr 1000 (under-dash enclosure). So far, no issues. It has not let me down after the initial 100ish miles on the trails. The bass boost knob is also nice to have.
T**.
Perfect for SXS
Delivered as expected, 10 inch kicker comp r sounds great hooked up to this Amp!
C**Y
Very easy.
Replacement for exact same amp hopefully this one works better. Very easy plug and play setup.
C**G
Just wow
13 Electra glide This little mofo kills it . I’ve head unit 5.25 kickers in fairing and 6x9 kickers in the bag lids. I was blown away how load this little amp is louder than my muddies same set up with Rockville amp
C**T
Hide It In Your Jeep Dash!
I installed this inside the dash of my Jeep Wrangler JK. It hides perfectly behind/under the glovebox. I have an aftermarket stereo (Alpine iLX-W650), and I upgraded the 1-ohm dual voice coil (DVC) subwoofer that comes with the factory Alpine “premium” sound system to a 2-ohm DVC shallow-mount sub (Pioneer TS-SW2002D2) that has much better clarity and response. This amp adds some much needed power back into the sub since I cut it in half by doubling the ohms of the voice coils. FYI: The power cable pigtail is only 14 gauge wire. Because it’s installed location was so close to the battery, I only ran 12-gauge wire to the battery. Just cut the in-line fuse off of the pigtail and splice in about 2.5’ of 12-gauge with the fuse going back on nearest the battery. Works perfectly without buying a dedicated “amp wiring kit” and having giant 4-gauge wire unnecessarily. Then I ran new, dedicated speaker wire back to the sub and ran the voice coils in series (so at 4-ohms). 200 watts @ 4-ohms in plenty to push the 8” sub. I only run it at about 60% gain for the balance that I prefer.
S**Y
Works well
Wasn't as loud as I would've liked
J**N
Great price, small package, big sound
I installed this in my sxs hooked to a boss audio stereo. Amp is small and easy to install in small spaces. Fine tuning will take time but very happy with price and product.
Trustpilot
1 month ago
3 weeks ago