12 in 12 out, I had a combination in 24 out 24. So I took two Echo.

UTILIZATION

Drivers simple and quick installation.
Nothing to say

GETTING STARTED

Nothing, no surprise ...
No time to waste

OVERALL OPINION

I use it for 4 months, so I spent a million audio project mix has this product.
I did not separate from my Project mix, I wanted to keep the possibility of automation ... and there ... surprise .. IT WORKS.
You can connect two Echo 12 with a mix project ... not life grand.
I end up with the benefits.