Sound on model railways tends to be a bit of a contentious issue. Some folk love it, others hate it. I’m not sure. Many would advocate the dcc and on board sound route, when done well I’d agree it can be very impressive. Well, it could be if anyone starts doing sound chips for CR locos.   A decade or so back I had a go with dcc. No technical issues, I got it all to work but I really didn’t like it. My mistake was probably to use a Bachmann dynamis controller. I just didn’t get on with