This short article provides a demonstration of DCC sound fitted to a Kernow Class 41 diesel hydraulic:

Decoder and Speaker Fitting
The Kernow Class 41 is DCC ready with a 21 pin decoder socket. It is designed for DCC sound and has an internal receptical designed to hold the standard bass-reflex speaker available from DCC Supplies which I have used in numerous other DCC sound locos.
I fitted an ESU Loksound 5 decoder. Due to the non-standard motor used in this loco, it is extremely difficult to configure CV settings which give optimal performance, however, after persevering for many hours, I managed to find a combination which, I believe, give acceptable performance.
The Model in Action
Graham Plowman (Created 1/10/2020), Updated 1/10/2020 2:20:35 PM +10:00)