Output Settings

I do not want to output the sound of the computer's program events (warning sounds, etc.). Is there a way to prevent this?

What should the master level indicator be set to in order to output 2V? Also, is [MASTER ATT] related to the master level indicator?

How much (dB) do you recommend for channel level indicator for each input? How much (dB) is acceptable for output without distortion?

Is the sound output from the REC OUT terminals the same as the sound output from the MASTER outputs?

What are the digital input specifications?

Can signals be output simultaneously from the MASTER and BOOTH outputs?