I'm a late adopter of the Sushi Box phenomenon, but in the past couple weeks I got the Tarantula and the Elementary.
I suggest the Elementary for you, if you don't need the XLR DI and all the EQ options within the Redacted ii. You can dial the gain way down and the Elementary is a beautiful sounding clean preamp. Dial up the gain to taste, and I think you get what you're looking for at half the price.
My board sends to my amp, but also sends to my IEM mix. As soon as I hit the foot switch, the Elementary made my previously sterile IEM sound blossom. And it adds sweetness to my amp, with just enough hair when digging-in.
Give it a try.