ESU 58821 LokSound 5 Direct Sound and DCC Control Decoder Board Replacement Decoder for Multiple Diesels .67 x 2.72" 17 x 69mm NIBESU 58821 LokSound 5 Direct Sound and DCC Control Decoder Board Replacement Decoder for Multiple Diesels . 67 x 2. 72" 17 x 69mm NIB With its unique design the LokSound 5 Direct DCC can easily replace boards that provide poor motor control, low volume, or generally inferior sound. Not only will the decoder work fine with most factory installed speakers, but it will sound even better with our new 11x15mmsugar cube speaker and sound enclosure kits.