RTB80A + RWK81 Amp Kit Bundle
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Rockville
RTB80A + RWK81 Amp Kit Bundle
RTB80A + RWK81 Amp Kit Bundle
8" 400W Powered Bass Tube with MP3 Input, 8 Ga Amp Kit
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Regular price
$104.95
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$104.95
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Features
- Compact 8" powered sub tube
- 200W RMS integrated amplifier
- Adjustable crossover and bass EQ
- Includes 8 ga OFC wiring kit
- Rugged tweed finish and steel grille
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What's Included in the box
- Rockville RTB80A 8" Powered Subwoofer Tube
- Rockville RWK81 8 Ga Amp Wiring Kit + RCA
SKU: SKU: RTB80A+RWK81
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Product Description
Elevate daily drives with smooth, controlled bass from a stylish tube enclosure. The RTB80A’s tuned port and efficient amplifier craft refined low‑end, while the included 8 gauge OFC wiring kit preserves dynamics. Secure mounting hardware and a durable finish create a sophisticated, long‑lasting upgrade that integrates neatly with factory or aftermarket audio.
This Bundle Includes

RTB80A
The Rockville RTB80A powered bass tube delivers focused, punch-forward low frequencies from a compact cylindrical design. Featuring an 8" woofer, 400W amplifier, and onboard tuning controls, it offers an all-in-one bass system built for clean integration and commanding in-car sound.
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RWK81
The Rockville RWK81 8 AWG Kit powers your car audio system with true-gauge wiring and 100% copper RCA cables. Flexible, durable, and engineered for clean signal transfer, it’s perfect for custom installs or upgrades, ensuring your amplifier runs cooler and delivers pure, powerful sound in any setup.
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Features
Sleek, Punchy Lows
Tubular ported design focuses energy for musical impact without muddying the cabin.
Efficient Power
Integrated 200W RMS amplifier with variable low‑pass and bass boost for tailored response.
Premium Cabling
8 ga OFC power and 100% copper RCA wiring support clean current delivery and signal clarity.
Simple Integration
Speaker‑level and RCA inputs make OEM or aftermarket connections straightforward.
Secure, Durable Build
Steel grille, mounting legs, and Velcro straps keep the tube planted and protected.

Technical Specifications
- Type Powered Subwoofer Tube + Wiring Kit
- Sub Dimensions 8.75 x 19 in
- Wire Kit Fuse 60 A AGU