TRU SPEC Elite Prefab Single 15" Subwoofer Enclosure Sundown U 15"

TRU SPEC Elite Prefab Single 15" Subwoofer Enclosure (Sundown U 15) is a USA-made, prefabricated enclosure dialed in precisely to Sundown U 15 specifications for a single-driver setup, featuring a double baffle, triple flush baffle, bracing, and 45's.

• Compatibility: Sundown U 15 with double baffle, triple flush baffle, bracing, and 45's; the enclosure is versatile to many other subs as well, just double-check your cutout.
• Made in: USA
• Material: MDF
• Shipping weight: 72 lbs
• Box External Dimensions: 30.00" (W) × 16.50" (H) × 20.29" (D)
• Material Thickness: 0.75"
• Net Internal Volume: 3.00 ft³
• Tuning Frequency: 32 Hz
• Port Area: 48 in²

In a car audio build, this enclosure provides a rigid 3 ft³ internal cavity tuned to 32 Hz with a 48 in² port, delivering controlled bass for a single 15" driver. The 0.75" thick MDF walls and 72 lb construction minimize panel flex and cabinet resonance, helping the sub reproduce deep notes with less coloration. Its dimensions (30.00" × 16.50" × 20.29") fit a range of trunk depths while offering a stable platform thanks to the substantial weight. The design remains adaptable to other 15" subs, provided the cutout is correct, making it a focused, install-ready option for dedicated 15" setups.