The principle feature of the E610 is DC coupling on the audio outputs and a voltage range of +/-5V which allows its use as a Control Voltage source in modular synthesis. Coupled with existing software such as Silent Way or Volta, this allows a simple interface between an analog modular synthesizer and powerful DAW software. The interface is full-duplex, so the audio inputs may be used for simultaneous recording, or for feedback in generating CV calibration curves.
In addition to stereo audio I/O, the E610 provides visual level indicators for each input and output channel consistingn of bi-color LEDs with different colors representing different signal amplitudes. There is also a USB status indicator which reflects the operational state of the interface.