Audio Output Connections

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

What sort of amplifier should I connect to produce sound?

Can this unit's MASTER1 outputs be connected to an amplifier's RCA inputs using an XLR-RCA converter cable (converter plug)? Also, can this unit's MASTER2 outputs be connected to an amplifier's XLR inputs using an RCA-XLR converter cable (converter plug)?

Are there terminals supporting balanced type inputs/outputs?

Do the BOOTH terminals support 3-contact (TRS) phone jacks?

The BOOTH terminal is a 3-pin (TRS) phone jack. What are the polarities when using it as a balanced terminal?

Do I need to purchase a sound card (audio interface) separately?