Milford, NH (January 22, 2013)—Earthworks’s first 500 Series module, the 521 ZDT, will be introduced at the 2013 NAMM show in Anaheim, CA, and is expected to ship Spring 2013.
Based on the ZDT Preamp technology designed by David Blackmer, the solid state ZDT 521 features switchable phantom power, polarity invert, and peak amplitude clip detection, just as in the original 1021 single channel ZDT Preamp. The transformerless output stage of 521 ZDT reportedly will drive long cable runs without loss of quality,. Transparent gain is switchable from 5dB to 60dB in 5dB steps.
The Earthworks mic amp topology is said to provide common mode rejection, overload margin and a low noise floor, combined with the wide bandwidth of the ZDT Preamps (1Hz to 200kHz +0.5dB) and distortion of less than 1 part per million (0.0001%). The 521 ZDT is suitable for practically any microphone—ribbon, dynamic or condenser—according to Earthworks.