I recently purchased 3 Key E7 diesels (A-B-B) powered by NCE-408sr decoders back ended with Dallee DCV3 sound units. Before gutting the electronics I would appreciate hearing from others about Dallee sound modules. In the photo note the 4 large speakers mounted back to back in tubular enclosures. The enclosures can be slid into position on longitudinal "rails" and lock in place with set screws. I liked how the installer used snips of heat shrink tubing at intervals along the wire runs to keep things neat. The electronics may be a little dated but the installation workmanship is timeless.
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