GE/Freightliner class 70 sound decoder and speaker (21)

The class 70 loco has a unique random sound which has been captured on this decoder and is prototypically heard at random. The sound is that of the ‘Skip Fire’ which is a computerised engine self-checking system; being computer controlled this feature cuts in at random on the real loco when both stationary or in motion. This is only operational in stationary mode on this decoder due to the limitations of the sound decoder. Other random sounds include the sound of the air release dump valve followed by the compressor cutting-in and the random sound of the sander which is operational when the loco is in motion. All these features help to make your DCC class 70 model interesting to operate.
Due to the restricted space inside the Bachmann class 70 it may benefit by fitting the rectangular, 20 x 40mm speaker, reference 50334.