 While a master volume is standard on this model, some variations will have either independent neck/bridge pickup volume knobs with a master tone knob, or the same independent neck/bridge volume knobs, with a tone switch next to the pickup selector switch rather than the master tone knob.The versions with a master tone knob are equipped with DeArmond Dynasonic pickups, which are extremely popular for a classic full-bodied, low frequency tone.Most associated with the sound of guitarist Duane Eddy, Dynasonics are single coil pickups, and have been used on certain Gretsch models since the 1950s.