UT65B Black 6.5" 2-Pack + NA2-400.2 Amplifier Bundle
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Rockville
UT65B Black 6.5" 2-Pack + NA2-400.2 Amplifier Bundle
UT65B Black 6.5" 2-Pack + NA2-400.2 Amplifier Bundle
6.5" Rollbar Tower Speakers, 2-Channel Marine Amp, Rocker Bluetooth, Aux Cable, 360° Mounts
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Regular price
$280.80
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$280.80
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Features
- IPX6 towers with true coax design
- 2-channel Class D marine amplifier
- Rocker Bluetooth with aux in/out
- 10' 3.5 mm to RCA cable included
- Aluminum swivel brackets fit 1.5"–2"
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What's Included in the box
- Pair UT65B 6.5" rollbar tower speakers
- MB Quart NA2-400.2 2-channel amplifier
- Rockville RockerBT Bluetooth controller
- Rockville RNRMR10 10' 3.5mm to dual RCA cable
- Mounting hardware and brackets
SKU: SKU: UT65B+NA2-400.2+RockerBT
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Product Description
A tidy, rugged system for UTVs, ATVs, and compact boats. IPX6 tower speakers deliver balanced sound with crisp highs, powered by a compact 2‑channel marine amplifier for clean headroom. The rocker Bluetooth controller adds intuitive, backlit control plus aux in/out for flexible sources. A premium 3.5 mm to RCA cable is included for fast, noise‑free hookup, keeping installs neat and reliable.
This Bundle Includes

UT65B
The UT65B delivers 400W peak and robust sound in a water-resistant, shockproof design. With 360° swivel aluminum brackets, rustproof hardware, and UV protection, these speakers are engineered for marine, UTV, and ATV use—offering premium audio and rugged durability for any outdoor adventure.
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RockerBT v2
RockerBT v2 is a compact Bluetooth rocker switch controller that brings powerful, clear audio to ATVs, boats, and more. With Bluetooth 4.0, aux in/out, and remote amp control, it fits seamlessly into your setup. Backlit buttons and marine-grade protection deliver style, convenience, and durability wherever you go.
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NA2-400.2
The MB Quart NA2 400.2 2-channel amplifier powers Polaris, ATV, UTV, RZR, and cart systems with full-range Class D performance. Marine-grade protection, Q-Stasis preamp circuitry, and ABYC/ASTM certification suit harsh environments. Switchable crossovers, gold-plated connections, and quick-disconnect wiring create a refined yet rugged power core for outdoor audio.

RNRMR10
The Rockville RNRMR10 connects 3.5mm audio sources to RCA systems with clear, stable signal transfer. Built from 100% oxygen-free copper with dense shielding and nickel-plated plugs, it suits home audio, studio monitoring, DJ setups, and media spaces that value dependable sound.
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Features
Durable By Design
Sealed terminals, ABS enclosures, and UV-safe materials stand up to vibration, sun, and spray.
Efficient Stereo Power
Class D topology delivers strong output with minimal heat for tight compartments.
Switch-Panel Simplicity
RockerBT fits a standard switch opening, saving space while adding clear, backlit controls.
Noise-Free Connections
100% copper TRS-to-RCA cable improves signal transfer and reduces interference in powersports installs.
Adjustable Coverage
360° swivels aim sound toward riders, cargo area, or shore for tailored listening.

Technical Specifications
- Product Type Rollbar tower speaker, amplifier, Bluetooth, and cabling bundle
- Speaker Power Handling (Peak/RMS) 400W peak pair / 100W RMS per speaker
- Speaker Impedance 4Ω
- Speaker Frequency Response 60Hz–20kHz
- Amplifier Power (RMS) 200W x 2 @ 2Ω; 100W x 2 @ 4Ω; 200W x 1 bridged @ 4Ω
- Bluetooth Version 4.0 with backlit buttons; aux in/out
- Cable Length 10' TRS 3.5 mm to dual RCA
- Weight Amp: 2.12 lb
- Dimensions Amp: 3.70" x 5.51" x 1.77"; Speakers: 9.84" x 7.17" x 7.32"