Lowell DX1512
2.9 cu. ft. Rectangular Acoustical Backbox (for 12" Speakers)

OUR PART #  DX1512

Lowell's DX-1512 professional acoustic backbox is engineered for distributed speaker systems that require high-quality sound reinforcement.  It has been carefully manufactured to provide systems designers with the benefits of large, universally accepted metal enclosures plus the acoustic characteristics associated with 3/4" plywood boxes.  This large-volume backbox allows a 12" speaker to operate at its optimum loading level, providing the system with improved low frequency response.  They are ideal for use with Lowell's 12Q250 Consultant’s Choice (250W) driver with companion FW-12Q grille with ported subplate or Lowell's 12P150 (150W) driver with companion FW-12 grille with adapter plate, all of which are sold separately.

The DX1512 has a volume of 2.9 cubic ft. for mounting high performance 12" drivers.  They are rigidly braced structures fabricated of welded, unitized heavy-gauge steel with damping to eliminate acoustical and mechanical resonances.  The inner walls of each backbox are lined with 1/2"-thick acoustical fiberboard to prevent sympathetic vibrations within the expanse of the cavity.  Additionally, inside surfaces are lined with a 1.5"-thick premium acoustic lining with a density rating of 1.5 lbs. to absorb undesirable resonance in the high frequency range.

The DX-1512 is furnished with four 0.5"-0.75" conduit knockouts and features two sets of slotted tabs welded on parallel
sides to facilitate mounting with optional Lowell's SS30 or SS48 channel rails (sold separately).  Slotted tabs may also be used as seismic anchor points where required by code.  The grille-mounting flange projects 0.437" for efficient installation in plaster, poured concrete, sheetrock, or suspended tile ceilings.  The flange includes 8-32 screw retaining U-clips to accept Lowell's 12" FW-12 or FW-12Q speaker grille with ported subplate.  Each backbox is finished in Lowell's durable black powder epoxy.


  • Dimensions: 23" l x 18" W x 12" D
  • Volume: 2.9 cubic ft.
  • Mounts FW-12, FW12Q speaker grilles (sold separately)
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