TR-11 / 11WH Backbox Speaker Upgrades
for Williams System 11 Pinball Machines

A TR-11 / 11WH set of backbox speakers can be added to improve the voice reproduction of the game for better recognition. The kit supplies all the various parts and wiring needed for easy installation. They can be installed in a matter of minutes and without soldering by following our simple installation instructions.   These kits include one 6½-inch SP-6 speaker, one 4-inch SP-4 speaker. Speakers may vary in System 11 games, kit can be modified for your needs. This kit compliments the SW-11V Subwoofer kit. See game compatibility list for applications.

TR-11 Click on image to enlarge This kit includes one 6½ -inch SP-6 speaker, one 4-inch SP-4 speaker, and an adapter.   TR-11WH Click on image to enlarge This kit includes one 6½ -inch SP-6 speaker, one 4-inch SP-4 speaker, wiring harness and an adapter.

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