Hi,
I'm currently in the crossroad of buying new audio interface for live shows.

I need minimum of 4 outputs but 6+ would always be better.

Performing on some gigs with a laptop I prefer being capable of powering my entire rig of the laptop = not power supply issues get me down during the show.

This is where Bus Powered kicks in.
If a Fireface UC (or UCX through USB) gets powered down for few seconds it won't relaunch.

So...
1. What's my safest solution to be bus powered? is there a chance to get the UC just to just keeps outputs bus powered?

2. Firewire seems to become more and more rare.
Currently I'm using MBP mid2010 but it seems the trend even with Apple is kicking the Firewire.

While UCX might be a current / future proof solution will I be able to use Firewire<>Thunderbolt adapters (I read they provide minimal watt rather than the standard required).
Is there any solution to get more outputs while being bus powered? is there any alternative to firewire with Mac 12v 6/8pin?

Thanks!