Heljan OO Class 25 Diesel with Zimo MS Sound

Kit: MS440 (C or D); SugarCube24X15X07

Fairly straight-forward DCC Sound installation in this Class 25 model - the speaker choice and connection are all that cause any bother at all...

Off comes the 21pin blanking plug, and our MS440 goes in. We have connected our stay-alive (1000uF) capacitor already, which sits on the platform at one end behind that cab, and our speaker will sit on the platform at the other end.

The speaker is a 7mm dual SugarCube24X15, which we have to wire directly to the decoder since the model does not provide any solder points for it. Instead, Heljan have placed a tiny 2pin socket on their PCB, but not supplied any plug to go into it, so not at all useful. If you are worried about soldering the speaker wires direct to a 21pin decoder, then you can ask YouChoos to do this for you when you buy the kit!

Please note that these guides are provided as useful resources for you, as-is. YouChoos cannot be held responsible for errors in the information, or for any damage caused to your models or equipment if you choose to follow any of the steps detailed here.