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When you're enjoying your boat, sound quality matters. The MB Quart NPW-254 marine subwoofer delivers deep bass, durability, and marine-rated performance that enhances every aquatic journey. Designed for the open water, this subwoofer brings music to life—even in the harshest elements.
Let’s dive into why this is the subwoofer every boat enthusiast needs onboard.Whether you're upgrading an older setup or building a fresh audio system, the NPW-254 marine sub fits seamlessly into your plans. It delivers a dynamic soundstage, handles power efficiently, and looks great in any marine setting. For boaters who value sound clarity, durability, and easy installation, this speaker checks every box—ensuring your marine adventures are filled with unforgettable audio.
Your boat faces unique challenges—humidity, saltwater, UV rays, and temperature extremes. The NPW-254 is made for all that and more.
Marine-certified for true waterproof reliability
UV-resistant enclosures protect from sun damage
Corrosion-resistant hardware and materials
IPX-rated build shields against water intrusion
This marine subwoofer won’t crack, fade, or fail under pressure. You get dependable performance no matter the conditions.
You don’t just hear the NPW-254—you feel it. This marine subwoofer delivers punchy, clean bass that cuts through ambient noise.
10” composite polypropylene cone for deep resonance
Rubber surround maintains responsiveness and durability
4-ohm impedance for versatile amp pairing
Rated for 250 watts RMS / 500 watts peak
Your music gains a whole new layer of depth and emotion when powered by this beast.
Whether you're upgrading an existing system or starting fresh, the NPW-254 makes installation a breeze.
Fits standard marine cutouts
Shallow mounting depth perfect for tight spaces
White UV-stable grille blends seamlessly
Compatible with most marine amps and receivers
No complex wiring or modifications—just install, power up, and play.
Pair the NPW-254 with a full marine audio system for balanced sound across frequencies. Use it with MB Quart marine amplifiers and speakers for best results.
Looking to explore other options? Visit our complete collection of marine subwoofers for more powerful solutions.
And if you’re upgrading your vehicle too, don’t miss this helpful guide to car window tinting to keep your ride stylish and UV-protected.
10” polypropylene woofer for clean, strong bass
Rubber surround offers superior cone stability
Marine-certified components for salt and sun exposure
Corrosion-resistant stainless steel hardware
Compatible with 250W RMS marine amplifiers
Stylish white grille enhances your boat’s appearance
Designed for easy flush-mount installations
Built to deliver loud, distortion-free bass on water
Audio Jam brings decades of experience in marine and mobile audio solutions. Our team recommends the NPW-254 for boaters seeking reliable bass, sleek design, and lasting value.
📍 Address: 227 Governors Place, Bear, DE 19701
📞 Call: (302) 832-2868
🌐 Website: audiojamonline.com
Subwoofer Size: 10 inches
Power Handling: 250W RMS / 500W Peak
Frequency Range: 30Hz–250Hz
Impedance: 4 Ohms
Mounting Depth: 4.5 inches
Sensitivity: 89 dB
IPX Rating: Marine-certified
Built tough. Engineered for bass. Ready for adventure.
Q1: Can this marine subwoofer handle saltwater conditions?
Yes. It features corrosion-resistant parts and a marine-rated housing for saltwater protection.
Q2: Will the NPW-254 fit in a tower speaker pod?
No. It’s designed for flush or panel mounting in cabins, consoles, or enclosures.
Q3: Do I need a separate amp for this subwoofer?
Yes. For best performance, pair it with a marine-rated amplifier delivering 250W RMS.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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I did receive my package in only a few days which was great. I have opened it and it is the complete kit. Hopefully when I have it installed it works as expected. If so it will have been a great shopping experience with, Audio Jam.
Shipping to took to long a week late
It didn’t work and no instructions included
I did receive my package in only a few days which was great. I have opened it and it is the complete kit. Hopefully when I have it installed it works as expected. If so it will have been a great shopping experience with, Audio Jam.
Good product
