Proline X P12D-P Dual 12" Ported Enclosure vs NVX NE122P Dual 12" Ported Subwoofer Enclosure

The Proline X P12D-P is the better-built box. It uses 3/4-inch Langboard Elite MDF with V-groove and dado joinery, a single 0.75-inch baffle, pre-wired 12-gauge OFC wire and a recessed ABS/carbon fiber terminal cup. The NVX NE122P is bigger inside (3.25 ft³ vs 2.75 ft³) and deeper (13-7/8 inches vs 7.125 inches), so it fits larger, deeper subs and is pre-lined with Poly-Fil. NVX owners report good sound with the right woofers and clean fitment, but also damage on arrival and complaints about build quality. Buy the Proline X for a solid, well-joined box for shallow-to-mid-depth 12s; buy the NVX for deep-mount subs and more internal volume.

• Choose the Proline X P12D-P if your subs mount in about 7 inches or less and you want tighter joinery, pre-wired OFC leads and a recessed composite terminal cup.
• Choose the NVX NE122P if your subs need more than 7 inches of mounting depth or you want more internal volume and factory Poly-Fil lining.