Quam ERD8
8" Backbox for Speaker Installation, Round


Our Price: $17.89
List Price: $18.28
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In Stock

The Quam ERD-8 is a round, steel loudpseaker back box. A circular, molded expanded polystyrene damping pad is fitted to the inside top of the enclosure. Four welded 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.


  • UL listed, category UUMW suitable for use in ceiling plenums that are part of 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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