Descriptions

About: Alpine PWE-S8-MRN 8" 120W RMS Compact Marine Subwoofer System

Compact, waterproof marine subwoofer with built-in amplifier delivering deep, powerful bass without sacrificing space on your boat.

Built for Marine Conditions

Designed for life on the water, the PWE-S8-MRN features an IPX6-rated waterproof design to handle splashes, spray, and wet environments with confidence. Whether you're cruising offshore or docked for the day, waterproof connectors and sealed gaskets help protect internal components from moisture intrusion. Combined with UV-resistant materials and ASTM-tested salt and fog protection, this marine subwoofer is built to withstand sun, salt, and seasonal wear, delivering reliable performance trip after trip.

Big Bass, Minimal Space

Big bass doesn’t have to take over your boat. The ultra-compact, low-profile enclosure is designed to fit in tight spaces like under the helm, inside storage compartments, or behind panels, making it ideal for boats where space is limited. Despite its small footprint, the preloaded 8-inch high-performance subwoofer delivers deep, impactful bass that you can feel. It’s the perfect way to add serious low-end performance without sacrificing valuable onboard space.

Features:

• Preloaded 8” high-performance subwoofer
• IPX6 waterproof marine subwoofer enclosure built to handle spray, splashes, and wet conditions
• Salt & fog resistant (ASTM B117) for long-term durability in coastal environments
• UV-resistant materials (ASTM G154) protect against sun exposure and fading
• Sealed enclosure with waterproof connectors and gaskets for reliable marine performance
• Compact, low-profile enclosure fits tight spaces
• Built-in amplifier for simple, all-in-one installation
• Delivers deep, impactful bass on the water
• RCA and speaker-level inputs for system flexibility
• Included wired remote bass level control

Specifications:

• Waterproof Rating: IPX6
• Salt & Fog Resistance: ASTM B117 Tested
• UV Resistance: ASTM G154 Tested
• Amplifier Power: 120W RMS / 240W Peak
• Subwoofer Size: 8” High-Performance Quad-Coil
• Enclosure Type: Powered (Built-in Amplifier)
• Frequency Response: 25Hz – 152Hz
• Inputs: RCA & Speaker-Level
• Remote Control: Wired Bass Level Knob Included
• Dimensions: 13-7/16”(W) x 2-13/16”(H) x 9-1/16”(D)

What's in the Box:

• 8" Powered subwoofer
• 12" Power/ ground/ remote harness (in-line 15A ATO fuse)
• 12" RCA/ speaker-level input harness with attached remote level control & 16' connection cable
• Harness mounting plate (attached to both harnesses)
• 4 Mounting brackets
• Eight 5/8" Philips-head screws
• Eight M4x10mm machine screws with attched flat and lock washers
• Four M3x8mm hex-socket screws
• 2" Strip of hook-and-loop fastener
• Spare 15A ATO fuse
• QR Code for owner's manual
• Warranty information
• Product registration information