If you are looking st ESU equipped locos and want to change sound files, then you will need an ESU LokProgrammer to change the sound files. ?As well, some of the paging for CVs in ESU decoders gets very complicated, and a LokProgrammer makes that easier. ?The LokProgrammer does not connect to a DCC system so one less interface, you can also test the engines with its built in engine driver. ?
I am in HO and prefer to deploy Soundtraxx Tsunami2 decoders where ever possible, and Decoder Pro is a champ for programming these. ?My best days are working on locos with DecoderPro and Tsunamis.