Rockville RWB90B Bundle: Pair 8 in 300-Watt Peak/200-Watt RMS Wakeboard Swivel Tower Marine Speakers, DBM25 Class-AB 2-Channel Marine Amplifier, RMWK4 4 AWG Waterproof Amplifier Install Kit, 4-Items

Features

• Package Includes: (1) Pair Rockville RWB90B Black 8" 300w Marine Wakeboard 360 Swivel Tower Speakers, (1) Rockville DBM25 1500w Peak/370w Dyno-Certified RMS Class-AB 2-Channel Marine Amplifier With Terminal Covers, (1) Rockville RMWK4 4 AWG Gauge Waterproof Marine Amplifier/Amp Install Wire Kit
• Audio Performance: RWB90B 8" two-way marine tower speakers deliver clear mids and crisp highs with a 1" polyimide dome tweeter and strong output from a polypropylene cone on a Santoprene surround; tuned for music and PA voice so riders hear clearly at speed. Fully marinized components resist salt, spray, and UV for season-after-season reliability on wakeboats, pontoons, and open-deck setups. Integrated stainless hardware and sealed terminals fight corrosion.
• Power & Control: Rockville DBM25 Class-AB 2-channel marine amplifier supplies clean, Dyno-Certified RMS power for authority at cruising volume-185W x2 @ 2, 125W x2 @ 4, 370W x1 bridged. Conformal-coated PCB, silicone-sealed end panels, and aluminum heat sink combat moisture and rust. Adjustable HPF/LPF, 12dB bass EQ, and phase control let you dial clarity, punch, and staging for your boat's layout.
• Mounting & Aim: Reinforced nylon 360 swivel brackets let you rotate RWB90B forward for riders or back toward the cockpit in seconds. Longer hardware accommodates thicker towers; includes 65mm/80mm screws. Fits 1.26"-2.87" bars common on wake towers and many UTV/Jeep roll cages, expanding use beyond boats. Integrated grills protect the drivers, while the compact profile keeps sightlines clean. UV-treated surfaces and a secure clamp design maintain grip under chop and trail vibration.
• Complete Install Kit: The RMWK4 4-AWG waterproof marine amp wiring kit speeds a clean, reliable setup: tinned RCA interconnect, long power/ground runs with protective mesh, remote wire, flat tinned speaker cable, Mini-ANL holder with 120A/80A fuses, and terminals/ties. Corrosion-resistant materials and marine-grade insulation help preserve signal and voltage so your DBM25 and RWB90B system plays louder with less hiss and drop.

Brand: Rockville

Speaker Maximum Output Power: 300 Watts

Frequency Response: 20 KHz

Connectivity Technology: RCA

Audio Output Mode: Stereo

Input Voltage: 100 Volts

Mounting Type: Bracket Mount

Material: Plastic

Model Name: (2) Rockville RWB90B Black 8" Marine Wakeboard Swivel Tower Speakers+Amplifier

Speaker Type: Outdoor

Special Feature: Hi Res Audio, Waterproof

Recommended Uses For Product: DJ, PA, Studio

Compatible Devices: Smartphone, Tablet, Laptop, Desktop, Television

Subwoofer Diameter: 8 Inches

Unit Count: 4.0 Count

Surround Sound Channel Configuration: 2.0

Color: Black

Included Components: (1) Pair Rockville RWB90B Black 8" 300w Marine Wakeboard 360 Swivel Tower Speakers, (1) Rockville DBM25 1400 Watt 2 Channel Marine/Boat Amplifier Amp w/Silicone Covers, and (1) Rockville RMWK8 8 AWG Gauge Waterproof Marine Amplifier/Amp Install Wire Kit.

Product Dimensions: 20.6"D x 13.5"W x 20.6"H

Item Weight: 33 Pounds

Impedance: 4 Ohms

Is Waterproof: True

Warranty Type: Limited Warranty

Number of Items: 1

Control Method: Touch

Speaker Size: 8 Inches

Power Source: Corded Electric

Woofer Diameter: 8 Inches

Audio Driver Type: Dynamic Driver

Audio Driver Size: 8 Inches

Subwoofer Connectivity Technology: Wired

Specific Uses For Product: DJ, PA, Studio

Manufacturer: Rockville

Item Weight: 33 pounds

Item model number: RWB90B+DBM25+RMWK4 v2

Date First Available: March 7, 2022