The all discrete Class A Micro Drive II incorporates several new circuit developments and features. This includes a new DC coupled input stage with a hand-selected FET, and a new FET output driver stage. No negative feedback is used anywhere in the circuit. To minimize distortion and noise we use as few parts in the signal path as possible. In fact, there are only three transistors in the entire signal path. Contrast this with the more commonly seen op-amp based preamps, where the signal passes through multiple Class AB op-amps, each using massive feedback and containing dozens of noisy, distorting transistors.