David Gilmour is official EMG artist.
This is presentation of EMG DG20 Gilmour's Signature Series Pickup
Quoted from EMG site:
"EMG DG20 utilizes our ivory alnico loaded SA single coils, an EXG guitar expander for tonal girth and an SPC presence control to enhance the Strat earthiness, all prewired onto a custom 11-hole white pearl pickguard with white knobs."
