Package Includes: (1) RTB80A 8" 400 Watt Powered Subwoofer Bass Tube + MP3 Input, (1) Rockville RWK81 8 Gauge Complete Amp Installation Wire Kit with 100 % Copper RCA Powerful Low-Frequency Output: The RTB80A features an 8" high-power woofer in a vented tubular enclosure driven by a built-in amplifier. Rated 400-Watt Peak / 250-Watt RMS with an integrated 250-Watt RMS amplifier, it includes an adjustable low-pass crossover and up to 18 dB boost at 45 Hz to deliver punchy, tunable bass across a 30 Hz–200 Hz range. Sensitivity 105 dB ensures strong output in small cabins. Installation Simplicity: Designed for plug-and-play installs, the tube includes four mounting legs and Velcro straps for non-permanent mounting, speaker-level and RCA line-level inputs plus an MP3 input for quick playback. No separate amp or enclosure required; simply connect power, ground, remote and signal. Compact dimensions (8.75 x 19 in) fit most vehicles and allow flexible placement options. RWK81 Complete Wiring Kit: The included RWK81 supplies 17’ 8-AWG SuperFlex power cable, 17’ high-grade 100% copper twisted-pair RCA, 17’ speaker lead, 3’ ground, a 60A AGU gold-plated fuse and holder, 7’ split loom and installation accessories. The soft abrasion-proof PVC jacket withstands -40 to 220°F, while superior RCA shielding and low-resistance construction improve power transfer and reduce interference for reliable installs. Versatile Placement and Tuning: Rockville Bass Blaster tubes are designed to be experimented with—corner load, rear load or front load the tube to explore cabin response and find the best low-end punch. No permanent installation is required; try multiple placements using included mounting legs and Velcro straps. This flexibility lets you optimize bass performance without sacrificing space or requiring custom enclosures. This bundle pairs a compact powered bass tube with a full 8-AWG amp installation kit to deliver focused, tunable low-frequency performance without a permanent build. The self-contained RTB80A houses an 8" woofer and integrated amplifier so you get deep, punchy bass with minimal space impact and no separate amp or enclosure required.

Installation is straightforward: the tube ships with four mounting legs and Velcro straps for secure, non-permanent placement and includes speaker-level and RCA line-level inputs plus an MP3 input for instant playback. The RWK81 wiring kit supplies 17' 8-AWG power, 17' 100% copper RCA, a 60A AGU fuse, split-loom and hardware to complete a neat, low-loss installation.

Performance highlights: 400-Watt Peak / 250-Watt RMS, adjustable low-pass crossover and up to 18 dB bass boost at 45 Hz, 30 Hz–200 Hz frequency response and 105 dB sensitivity. The vented tubular enclosure and rear aero port focus acoustic energy for punch and clarity while the built-in amp allows precise EQ to match cabin acoustics.

Key Specs:
Power: 400-Watt Peak / 250-Watt RMS (integrated amp rated 250-Watt RMS)
Woofer: 8-inch vented high-power driver
Frequency Response: 30 Hz–200 Hz
Sensitivity: 105 dB
Installation Kit: RWK81 — 17' 8-AWG power, 17' 100% copper RCA, 60A AGU fuse, split-loom, accessories
Dimensions: 8.75 x 19 in

Who should buy: car audio enthusiasts, installers and DIYers seeking compact yet powerful bass that fits most vehicles. Competitive advantage: the bundled RTB80A plus RWK81 low-resistance wiring kit and Rockville’s production QC deliver a practical, low-loss installation, flexible placement options and tested construction for dependable on-road performance.