THE QS-3000 SOUND and control board is the newest update for locomotives with MTH ProtoSound, Weaver-installed QSI systems, and earlier QSI units. The QS-3000 board also is designed to work with Lionel’s TrainMaster system in conventional mode (some older ProtoSound systems don’t work properly with TrainMaster) and with TrainAmerica Studio’s Universal Command Upgrade Board (UCUB). […]
QS-3000 sound system upgrade
