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Lowell LT-830-870

Lowell LT-830-870

Lowell LT-830-870
Item# LT-830-870

Product Description


LT-830-870: Loudspeaker

Quick install T-bar ceiling speaker for suspended tile ceilings features 8 in. 20W coaxial driver, 70V transformer, and fine perforation grille (no backbox). Patented 1x2 assembly with integral T-bar quickly replaces half a non-tegular (2x2) ceiling tile. U.S. patents 7120269, D467579, 7643647.


  • Background music and paging


  • Driver (CT830A):  8 in. 20W coaxial driver with 12 oz. magnet, frequency response of 57Hz-14kHz (±6dB) and 44Hz-20kHz (±7.6dB), average sensitivity of 97.0dB measured 1W/1M, and 80 degrees conical dispersion.
  • Transformer:  70V with taps at 1, 2, 4, 8W
  • Grille with Subplate (1 x 2):  Fine-perforation grille provides maximum free-air space for excellent sound transmission while maintaining an unobtrusive appearance in new or existing tile ceilings. Integral T-bar supports neighboring non-tegular ceiling tile. White.
  • Mounting Aids: Integral T-bar to support adjacent cut ceiling tile. Restraint tab and hole for two-cable code-compliance (cables not included).


  • Made in the U.S.A. with global components.


  • The T-bar ceiling speaker system for suspended tile ceilings shall be Lowell Model No. LT-830-870. The 1'x2' system shall replace half of a non-tegular 2'x2' ceiling tile or one-fourth of a non-tegular 2'x4' ceiling tile and shall include an integral T-bar to support adjacent ceiling tile. Each speaker system shall include a factory-mounted driver mounted to a subplate with a fine perforation steel grille finished in white powder epoxy. The driver shall be 8 inch coaxial with a power rating of 20W. It shall have a magnet weight of 12 ozs., frequency response of 57Hz-14kHz (±6dB) and 44Hz-20kHz (±7.6dB), and average sensitivity of 97.0dB measured 1W/1M. The driver shall include a factory-wired 70V transformer with primary taps at 1, 2, 4, and 8W.