IMG_1142[1].JPG
NKFD1219[1].JPG
IMG_E1087[1].JPG
BYEA4325[1].JPEG
IMG_1148[2].JPG
IMG_1149%5B1%5D.png
IMG_1142[1].JPG
NKFD1219[1].JPG
IMG_E1087[1].JPG
BYEA4325[1].JPEG
IMG_1148[2].JPG
IMG_1149%5B1%5D.png

Tunnel 8 Subwoofer System

from $39.00

Tunnel 8 Subwoofer Enclosure

Modern acoustics. Hidden craftsmanship.

Tucked inside the rear tunnel of the Mazda Miata NA/NB, the Tunnel 8 transforms unused space into balanced, responsive bass — no trunk loss, no clutter. Printed in lightweight composite and hand-finished in fiberglass, every enclosure blends modern precision with traditional craftsmanship.

Available sealed or aperiodic-vented, and offered loaded with a matched 8″ subwoofer or bare for custom builds. The Tunnel 8 maintains full trunk function while delivering a rich, natural low end that complements the Miata’s intimate cabin.

Why it matters:

  • Seamless integration and OEM-level fitment

  • Hybrid 3D-printed / fiberglass shell for superior rigidity

  • Optional aperiodic tuning for smooth cabin response

  • Designed and built in small batches, exclusively for Miata enthusiasts

For drivers who listen as intently as they drive.

Bespoke Production Time: 10-14 Days

Version:

Tunnel 8 Subwoofer Enclosure

Modern acoustics. Hidden craftsmanship.

Tucked inside the rear tunnel of the Mazda Miata NA/NB, the Tunnel 8 transforms unused space into balanced, responsive bass — no trunk loss, no clutter. Printed in lightweight composite and hand-finished in fiberglass, every enclosure blends modern precision with traditional craftsmanship.

Available sealed or aperiodic-vented, and offered loaded with a matched 8″ subwoofer or bare for custom builds. The Tunnel 8 maintains full trunk function while delivering a rich, natural low end that complements the Miata’s intimate cabin.

Why it matters:

  • Seamless integration and OEM-level fitment

  • Hybrid 3D-printed / fiberglass shell for superior rigidity

  • Optional aperiodic tuning for smooth cabin response

  • Designed and built in small batches, exclusively for Miata enthusiasts

For drivers who listen as intently as they drive.

Bespoke Production Time: 10-14 Days

We didn’t invent the aperiodic enclosure — we just refined it for the Miata.

The idea has been around for decades: use a carefully damped vent to smooth internal pressure and extend low-end response in places where airspace is limited. In the Miata’s rear tunnel, it finally makes sense. The result is low-frequency depth that feels balanced, not boomy — part of the music, not an afterthought.

Each Tunnel 8 starts as a precision 3D-printed shell, then gets hand-laminated in fiberglass for strength and resonance control. The print gives us perfect repeatability; the fiberglass gives it soul.

We tuned every parameter — volume, vent damping, driver placement — around subs that favor tone over volume. The goal was never to shake mirrors, but to restore balance to the Miata’s cabin.

Every unit is carpet-wrapped, hand-finished, and built in small batches here in northern Appalachia. Designed to disappear. Engineered to be heard.

Versions

Tunnel 8 — Base
Sealed, unloaded enclosure. Designed for 8″ subs that perform well in small volumes. 3D printed and fiberglass-reinforced, carpeted, and ready for your choice of driver.

Tunnel 8 — Loaded
Factory-mounted with a finely matched 8″ driver for balanced, natural low end. Includes heat-set inserts and prewired terminal cup.

Tunnel 8 — AP Edition
Adds a removable aperiodic cartridge with both “soft” and “tight” damping options. Tuned for smoother response and extended low frequencies in the Miata cabin.

Optional Interior Vent Kit
Precision-printed cabin-side grille and mounting hardware for a clean, finished look behind the seats.