Hmmm. Well, guess I should take a good look at my amp input and see if a 4 channel Alps pot will feed them OK and just DIY a passive pre and feed it with a pair of Atom+ or something.
The salesman at Sweetwater suggested a Black Lion IO box as better than the MOTU. Never heard of them and a bit more expensive. But they seem to make only a 2 or 16 channel.
Bummer on the Okto. It looked interesting. Digital volume is fine in the studio when you are starting with 32 bits. ( that's why they do it) but not when you are starting with 16. Yea, your threshold of hearing is supposedly set so the LSB being the same step should nonmatter, but I disagree Your hearing articulation changes with volume too. Actually, at Who concert levels, you probably can't hear 6 bits for a week