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Cylindrical charcoal-carpeted 12 inch subwoofer tube enclosure

Nippon

Nippon TUB12 12" Car Subwoofer Tube Box

SKU CH-6FAD-CFAT4

A 12-inch ported subwoofer enclosure built from 5/8-inch MDF with a charcoal carpet finish and terminal cup connector

  • 12-inch ported tube delivers deep bass response
  • 5/8-inch MDF construction reduces cabinet resonance
  • Charcoal carpet covering protects finish in vehicle
  • Terminal cup connector simplifies amplifier wiring
  • Single chamber design optimises internal air volume

12-inch Ported Subwoofer Enclosure

The Nippon TUB12 is a single-chamber ported tube box built from 5/8-inch MDF with a charcoal carpet finish. It houses a 12-inch driver and uses a terminal cup for secure wiring. The enclosure weighs 25 lbs and measures 21.5 inches long by 15.5 inches high. It suits drivers wanting a compact bass upgrade without building a custom box.

Fitment and Wiring Check

Verify the available cargo space matches the 21.5 by 15.5 inch footprint before ordering. Confirm your amplifier provides speaker-level or line-level outputs compatible with the terminal cup connector. Ensure the subwoofer impedance matches the amplifier load rating for safe operation. The ported design requires adequate air space around the vent for proper tuning.

Upgrade From Sealed or Smaller Boxes

This enclosure replaces sealed boxes or smaller diameter tubes when deeper low-frequency extension is the priority. The ported vent increases output around the tuning frequency compared to sealed designs of similar volume. The jump is worth it if the listening preference leans toward louder, boomier bass and the vehicle space accommodates the larger tube dimensions.

Highlights

  • 12-inch ported tube delivers deep bass response
  • 5/8-inch MDF construction reduces cabinet resonance
  • Charcoal carpet covering protects finish in vehicle
  • Terminal cup connector simplifies amplifier wiring
  • Single chamber design optimises internal air volume

Specifications

No published specifications for this item yet.

Questions about this item

Does the Nippon TUB12 tube enclosure come with a subwoofer driver installed or do I need to buy one separately?

The TUB12 is an empty ported enclosure built from 5/8" MDF with a charcoal carpet finish and terminal cup; a 12" driver must be purchased separately.

Which capacity or version of the TUB12 should I choose for my system?

Only one version exists — a single-chamber 12" tube measuring 21.5" long by 15.5" high and weighing 25 lbs — so there is no capacity choice to make.

What does the 12-inch size mean for actual bass output once the box is mounted in my vehicle?

The 12" designation is the driver diameter the ported tube is tuned for; real output depends on the subwoofer you install and the amplifier power you supply.

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