Lowell D6410-72
4” Speaker, Xfmr, and Grille Assembly

OUR PART #  D6410-72

Lowell's D-series speaker assemblies are 4” 15W systems that provide full fidelity sound with clear intelligibility, very wide dispersion (170o) and minimal architectural visiblity. Each assembly includes a speaker (JR410), wired dual-voltage transformer (TLM- 572) and a mounted grille (several options to choose from). It ships ready for installation in a variety of applications. Order backbox and mounting accessories (T-bridge or support rails) separately.


  • Speaker (JR410):  4” high compliance speaker with power rating of 15 watts RMS employs a 10 oz. ceramic magnet. Cone is paper with a treated cloth surround for smooth, extended frequency response and a clean, natural sound.
  • Transformer (TLM-572):  to facilitate a variety of distributed applications the assembly includes a wired dual-voltage (70/25V) transformer that has a 5W rating and taps at .25, .5, 1, 2, 5W.
  • Grille Selection:  precision-formed steel with white powder epoxy finish for a clean presentation.
    – SG-4: screw-mount, 7” square


  • Speaker I.D.:  JR410
  • Transfomer I.D.: TLM-572
  • Grille I.D.:  SG-4
  • Backbox (order separately):  P625X with SS24 rails, or CB44 (surface mount) with no rails.
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