RWB90B Black 4-Pack + DBM45 Marine Amplifier Bundle
1
/
of
5
Rockville
RWB90B Black 4-Pack + DBM45 Marine Amplifier Bundle
RWB90B Black 4-Pack + DBM45 Marine Amplifier Bundle
8" Swivel Tower Speakers, 4-Pack, 4-Ch Amp, Receiver, 4 AWG Kit
Free Shipping
Regular price
$584.85
Sale price
$584.85
Regular price
$0.00
Unit price
/
per
Features
- Four 8" black swivel tower speakers
- 500W RMS 4-channel marine amplifier
- IP66 gauge-hole Bluetooth receiver
- Waterproof 4 AWG wiring kit included
- Stainless hardware, UV and salt-safe
Couldn't load pickup availability
What's Included in the box
- (2) Pairs RWB90B 8" Black Tower Speakers
- DBM45 4-Channel Marine Amplifier
- RGHR2 Marine Receiver with Wired Remote
- RMWK4 Marine Amp Wiring Kit
SKU: SKU: (2) RWB90B+DBM45+RMWK4+RGHR2
View full details




Product Description
Bring commanding sound to the wake with four 8" swivel tower speakers powered by a dyno-rated 4-channel amplifier. The IP66 gauge-hole receiver adds Bluetooth streaming, USB, and AM/FM, with a wired remote for easy helm or transom control. Durable, fully marinized construction resists sun, salt, and spray, while a waterproof 4 AWG kit supports a clean, reliable install. A refined, high-performance system for wake boats and sport towers that demand projection and clarity.
This Bundle Includes
DBM45
The DBM45 4-channel marine amplifier delivers 2,000W peak and 500W RMS, combining waterproof construction with advanced crossover controls. Designed for boats of all sizes, it adapts to subwoofers, full-range, or midrange speakers, ensuring powerful, clear sound and lasting performance—plus a PA microphone and mounting kit for added versatility.
Learn More
RGHR2
The RGHR2 gauge-hole receiver delivers powerful 72-watt peak amplification with Bluetooth, USB, and AM/FM connectivity in a waterproof IP66 design. Featuring dual RCA outputs, customizable EQ, and a 32.8-foot wired remote, it provides exceptional audio quality for boats, ATVs, and recreational vehicles.
Learn More
RMWK4
The RMWK4 V2 marine amplifier wiring kit delivers premium power and signal transfer with 4 AWG cables, waterproof fuse holders, and corrosion-resistant terminals. Designed for marine durability and easy installation, it’s the complete solution for achieving powerful, reliable audio on any boat or outdoor system.
Learn More
RWB90B
RWB90 Marine Wakeboard Speakers offer 200W RMS power, marine-grade durability, and 360° swivel mounting. Designed for boats, Jeeps, and ATVs, they deliver clear, powerful sound and withstand the harshest elements. Enjoy premium audio performance and flexible installation for any adventure, on water or off-road.
Learn More
Features
Projecting, Detailed Sound
Two-way 8" drivers and 360° swivel mounts direct clear audio to riders and deck.
Marine-Verified Power
Dyno-certified 4-channel output drives all four speakers with stable, low-distortion current.
Intuitive Source Control
IP66 receiver with wired remote provides Bluetooth, USB, and radio for flexible on-water listening.
Engineered For Elements
Stainless steel hardware and sealed terminals resist corrosion and maintain performance.
Clean Installation
Waterproof 4 AWG wiring and organized accessories simplify routing and reduce noise.
Technical Specifications
- Type Marine tower speaker, amplifier, and receiver bundle
- Speaker RMS Power 200 W per speaker
- Amplifier RMS Power 500 W (4 ch total)
- Receiver Rating IP66, Bluetooth, USB, AM/FM
- Impedance 4 Ω (speakers)
- Frequency Response 60 Hz – 20 kHz (speakers)
- Wiring Kit 4 AWG waterproof marine
- Weight Varies by installation
- Dimensions Amp 9" x 2.4" x 15.1"; receiver cutout 2.96" dia