Lowell's cone-shaped 8XD4 Series backboxes are engineered to accommodate an 8" speaker in either new or existing construction. The slightly tapered, conical shape allows these backboxes to be stacked for space efficient storage and transit.
These boxes work with a wide selection of Lowell grilles and mounting accessories. Series 8XD4 backboxes are seamless 22-gauge drawn steel construction with undercoating to eliminate acoustical and mechanical resonances. Additionally, 8XD4 Series features a fire retardant polyurethane foam disc affixed to the bottom inside surface to provide supplemental resonance and vibration control.
Models are furnished with factory installed 8-32 screw retaining clips for grille mounting and finished in Lowell's durable white powder epoxy paint.