ESU have now added the full SWD sound library to their website, meaning there is no cost for these sound files and the decoders can be sold at a lower price. We can load any of these sounds onto a decoder of your choice with a free speaker upgrade which we'll connect to the decoder for you. The speaker will be a small megabass or bass enhanced speaker depending on the loco.
If you want a decoder type not on the list, send us a message and we may be able to help.