Yes. having a digital input would probably make it possible to have a bluetooth connection to a mobile phone to turn the empeg into a universal bluetooth handsfree kit that would automatically patch your calls through your stereo speakers and use the empeg's mic input. (this was discussed in technical a while ago).

The digital board would have to be able to convert the PCM output of the bluetooth module to I2S and then provide a PCM output from the empeg's mic.

Anyone else possibly interested in this?

Oli.