Proline X P12D-P Dual 12" Ported Subwoofer Enclosure V3
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Proline X P12D-P
Dual 12" Ported Subwoofer Enclosure | V3
2.75 ft³ Net
36Hz Tuning
Ported Bass Reflex
7.125" Max Depth
Langboard Elite MDF
Built in Tennessee
Dual 12" Ported Output. The Highest Output Configuration in the Performance Series.
The Proline X P12D-P is a dual 12" slot-ported enclosure built for installs that demand maximum output and deep low-frequency extension. At 2.75 ft³ net and tuned to 36Hz , this enclosure gives two 12" drivers the combined air space and port geometry to produce output at the top end of what the Performance Series delivers. Two 12" drivers in ported alignment at 36Hz produce combined output that fills large vehicles and dedicated listening spaces. Output that requires custom fabrication or a purpose-built SPL setup to exceed.
At 32" wide, 15" tall, and 15.3" deep , the P12D-P is a dedicated trunk build. Both the 32" width and 15.3" depth are critical dimensions. Measure your available trunk space carefully before ordering. The 7.125" max mounting depth covers the majority of standard 12" drivers. A single terminal cup handles both drivers internally. Both must be run at the same impedance.
Every panel is CNC-cut from Langboard Elite MDF to exact internal volume and assembled by hand in our Tennessee facility. Port geometry is CNC-cut to exact dimensions. Tuning is consistent unit to unit. Finish options are Dark Gray Trunkliner or Plush Black. Shipping is included.
Why Dual 12" Ported at 36Hz
The dual 12" ported configuration at 36Hz is the highest-output enclosure in the Performance Series lineup. Two 12" drivers in ported alignment produce combined output that exceeds what most single large-format drivers in ported enclosures can match at equivalent amplifier power levels. The 36Hz tuning point places the port output peak in the upper sub-bass range, where impact is most audible and where the combined efficiency of two ported drivers reaches its maximum.
At 2.75 ft³ net, each driver has adequate air space to operate efficiently in ported alignment. Port velocity is controlled at this volume, no chuffing, no audible port noise at real-world listening levels. Both drivers operate at the same
