Bachmann class 20 with one of the new ESU 35x18x11 passive radiator speakers 

Hi Richard - I followed your advice and fitted twin mini mega base speakers to my two class 20s and they sound superb

One of the best sound upgrades I have heard on a model.. Class 20's not the easiest models to upgrade the sound but this speaker hits the spot !

Hi Richard -I have just purchased for my collection Bachamnn 32-027X the twin pack of Hunslet-Barclay Class 20s. Will the new ESU speaker fit the old style chassis? Thank you.

Sounds great. Almost makes me want to start up again. Then I know I'll just over invest and under use... Great sound though...

great sound but not sure it would fit a much older bachman class 20

Great addition to the best class 20 on the market, I’m going to upgrade mine as soon as I can, is there a Wheeltappers class 20 sound file available? I have 3 Bachmann class 20 locomotives 1x factory sound and 1x Legomanbiffo which is very good indeed, I’d like something different in the 3rd, all are Plux22 dcc compatibility, thanks for sharing.