Granny - drive refers to the current-driving capability of the DAC output. If it has 1 ohm output impedance, then it can drive more current than one with 100 ohms output impedance. This is simple electronics 101, batteries and bulbs. The current output capability of the DAC driver is a function of the size of the output device and the power delivery to that device. Either thing can limit the current when di/dt is required (change in voltage over change in time)
Steve N.
Empirical Audio
Steve N.
Empirical Audio