Hall sensor for flange squeal effect (on DCC Sound-fitted models only) DCC Features. DCC ready [21-Pin MTX Socket] or Factory-Fitted DCC Sound options High Performance Traction features. 21 Pin DCC. Customised Dual-Speaker Technology with large ‘Accurathrash’ Style Bass Speaker and smaller 'iphone' style cube for higher frequencies (on DCC Sound-fitted models only).
