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- JBL - 8138
Stylish, contemporary appearance enhances any decor. Clear sound from an 8 inch dualcone full-range driver. Very high sensitivity of 97 dB for maximum sound levels using minimum amplifier power. 6W transformer for use on 70V/100V distributed speaker lines Installs to in-ceiling backboxes having 4 mounting points on an 11.25" (286 mm) diameter mounting circle. For use with MTC-81BB8 backcan and MTC-81TB8 tile bridge