The DiMarzio DP170 Blue Velvet is a single coil introduced in 1994 designed for the neck position. DiMarzio wanted to improve string balance. The vintage magnet stagger wasn't made for light strings with a plain G, so they recalibrated it in order to make the strings balance better. The Blue Velvet also features a new winding technique that gives the guitar attack, while keeping that famous single-coil sound.