DiMarzio DP755 The Tone Zone 7 7-Strings Bridge Pick Up (Black With Nickle)The Tone Zone 7 is not merely an adaptation of the original Tone Zone, but a new design from the ground up for 7 string guitars. It incorporates lower magnet pull and coils specifically calibrated to reproduce the full impact of the low B string without any loss of tone quality or fidelity. The Tone Zone 7 comes with 4 conductor cable. Specifications Recommended For: Bridge position Quick Connect: No Wiring: 4 Conductor Magnet: Ceramic Resistance: 17.