DiMarzio DP235 The Black Angel™ Piezo Acoustic PickupThe Black Angel Piezo (DP235) is a stand alone pickup that delivers a beautiful, natural acoustic guitar sound. It retains all the percussive resonance of the body, plus the transparent clarity of the strings. The Black Angel Piezo uses our new stratifying technology that stacks our piezo elements between layers of maple, spreading the energy across the entire sensor array. DiMarzio's approach is organic capture eliminating the need for a built in