TRU SPEC Prefab Quad 6.5" Sub Up Port Back Subwoofer Enclosure
Key features
- Double flush baffle.
- Sub-up, port-back layout provides a defined orientation for planning driver and port clearance.
- Computer designed, CNC cut and assembled in-house at GP Car Audio, according to the supplier.
- 0.75-inch MDF construction.
- Empty enclosure lets you select the subwoofers separately; no subwoofer is included.
TRU SPEC Prefab Quad 6.5" Sub Up Port Back Subwoofer Enclosure is backordered and will ship as soon as it is back in stock.
TRU SPEC Prefab Quad 6.5" Sub Up Port Back Subwoofer Enclosure is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
The Tru Spec quad 6.5-inch sub-up, port-back enclosure gives a four-driver build a ready-defined ported layout. The supplier specifies 2.50 ft³ of total net airspace and 0.625 ft³ per subwoofer, with a double flush baffle for the four mounting positions.
This is an empty enclosure only. No subwoofer is included.
Key Features & Benefits
- Double flush baffle.
- Sub-up, port-back layout provides a defined orientation for planning driver and port clearance.
- Computer designed, CNC cut and assembled in-house at GP Car Audio, according to the supplier.
- 0.75-inch MDF construction, with the enclosure dimensions and acoustic specifications listed below for comparison.
- Empty enclosure lets you select the subwoofers separately; no subwoofer is included.
Technical Specifications
| Enclosure type | Ported; empty enclosure only |
|---|---|
| Subwoofer configuration | 4 x 6.5-inch |
| External dimensions (W x H x D) | 30.00 inches x 16.50 inches x 15.88 inches |
| Material | MDF |
| Material thickness | 0.75 inch |
| Total net internal volume | 2.50 ft³ |
| Tuning frequency | 35 Hz |
| Port area | 37.13 in² |
| Cutout diameter | 5.95 inches |
| Flush trim diameter | 7.5 inches |
| Baffle and reinforcement | Double flush baffle |
| Layout | Subwoofer(s) up; port back |
| Total driver-displacement allowance | 0.24 ft³ |
| Supplier-listed airspace per subwoofer | 0.625 ft³ |
Why Choose This Product?
This configuration suits a project built around four compatible 6.5-inch subwoofers rather than one large driver. Its 30.00-inch width, 35 Hz tuning and detailed cutout measurements let you compare the enclosure to both the vehicle space and the selected drivers.
Installation & Compatibility Notes
- The quoted net volume uses the supplier's 0.24 ft³ total driver-displacement allowance. A different driver displacement changes the final available airspace.
- The supplier uses approximately 0.06 ft³ per driver as a small-subwoofer displacement reference. Confirm the actual displacement of all four selected drivers.
- Measure the intended vehicle space and its access opening. Check basket and motor clearance, mounting depth, terminals and cone clearance against the actual driver. No vehicle-specific fitment is claimed.
- A maximum mounting-depth measurement is not provided in the supplier description. Confirm clearance for your exact subwoofer before purchase.
- Leave the port opening unobstructed and confirm the driver manufacturer's recommended ported volume and tuning. Secure the enclosure appropriately for the vehicle installation.
Frequently Asked Questions
Are subwoofers included?
No. This listing is for an empty ported enclosure only. The 4 compatible 6.5-inch subwoofers are selected and purchased separately.
Does matching the nominal subwoofer size guarantee compatibility?
No. Confirm the exact model, cutout, mounting depth, basket clearance, displacement and recommended enclosure volume. A 6.5-inch size label alone is not enough to establish fit.
Which direction do the subwoofers and port face?
The driver mounting positions face upward and the port faces the back. Check clearance above the subwoofers and around the port in the planned installation.
Explore More
Compare more options in our Tru Spec enclosures collection, or contact 12 Volt Outlet with your subwoofer model and available installation space for help checking this enclosure.
