Quam ERD8U
8" Universal Backbox for Speaker Installation, Round


The Quam ERD8U is a round, steel loudspeaker back box. A circular, molded expanded polystyrene damping pad is fitted to the inside top of the enclosure. Two snap-in hanger straps. UL listed (UUMW). Finish: White baked epoxy hybrid.

Constructed of drawn steel, these backboxes have a bump to add acoustical rigidity and a fire retardant acoustic damping device to reduce standing waves and mechanical resonances. They are approximately half the weight of welded backboxes. They can be used with SSB-2, SSB-3, SB-4, SSB-6 and SSB-7 support devices.

Quam ERD8U Features:

  • UL listed, category UUMW suitable for use in ceiling plenums that arepartof air handling system
  • SSB-2 Tile Support Bridge (sold separately) is a UL approved accessory when used with ERD8 series
  • Designed to nest, eliminating bulky cartons for shipping and job site storage space requirements
  • Baffle mounting J-nuts are securely captured in mounting flange eliminating loss during transit & installation
  • Four slots at 90° provide quick attachment to SSB-2 tile bridge without need for additional hardware

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