TRU SPEC Prefab Dual 6.5" Subwoofer Enclosure Sundown SA / DC M3
Key features
- Double flush baffle.
- 0.75-inch MDF construction.
- Empty enclosure lets you select the subwoofers separately; no subwoofer is included.
TRU SPEC Prefab Dual 6.5" Subwoofer Enclosure Sundown SA / DC M3 is backordered and will ship as soon as it is back in stock.
TRU SPEC Prefab Dual 6.5" Subwoofer Enclosure Sundown SA / DC M3 is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
The Tru Spec dual 6.5-inch ported enclosure is specified for two Sundown SA-6.5 or DC Audio M3 6.5-inch subwoofers. It combines a double flush baffle with 0.60 ft³ of total net internal volume and 40 Hz tuning.
This is an empty enclosure only. No subwoofer is included.
Key Features & Benefits
- Double flush baffle.
- 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 | 2 x 6.5-inch |
| External dimensions (W x H x D) | 20.00 inches x 9.00 inches x 11.66 inches |
| Material | MDF |
| Material thickness | 0.75 inch |
| Total net internal volume | 0.60 ft³ |
| Tuning frequency | 40 Hz |
| Port area | 8.00 in² |
| Cutout diameter | 5.95 inches |
| Flush trim diameter | 7.50 inches |
| Baffle and reinforcement | Double flush baffle |
Why Choose This Product?
This dual-driver version is an option when a 20.00-inch-wide enclosure fits your installation and the listed airspace suits your pair of subwoofers. Check the 5.95-inch cutouts, 7.50-inch flush trim diameters and each driver's mounting clearance before installation.
Installation & Compatibility Notes
- Supplier-listed applications: Sundown SA-6.5 6.5-inch, DC Audio M3 6.5-inch.
- The supplier also lists these alternatives as fitting and being close to recommended enclosure specifications: CT Sounds Meso 6.5-inch, CT Sounds Tropo 6.5-inch, Massive Hippo XL 6.5-inch, DS-18 Elite Z 6.5-inch, Rockville W6k9 6.5-inch, Skar EVL 6.5-inch, Audiopipe TXX BDC4 6.5-inch, Ampere Audio AA 6.5-inch RVE. Confirm the current model and revision before ordering.
- 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 2 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.
Will this enclosure fit my vehicle?
Vehicle-specific fitment is not provided. Compare the external dimensions with the installation area and access opening, then allow space for the driver, wiring and unobstructed port.
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.




