>So, this mixer would have 6 or 7 inputs-- four AC or DC reversing and 2 or 3
>DC inputs with at least one without any attenuation. So, you have 4
>reversing knobs and one or two non reversing knobs. The mixer would have 2
>or 3 outputs. One would be the high accuracy "DC-only" outputs (and maybe
>an inverted output). The other output would be a combination of ALL inputs.
>You could put a master level control on this output too. So, you could
>have all the features I hear people wanting. High accuracy DC (3 in 1 out),
>reversing inputs for AC or DC, ability to mix AC and DC, and the DC does not
>get compromised with the "drift" or other bad things until the final output
>op amp that is selected for audio performance. You have the good 1013 DC
>output before you get to that stage.
Maybe I'm missing something here, but do you need more than one
opamp for gain make-up? I thought the goal was the less the better.
Personally I'd like to see all the inputs treated equally. If
people want AC coupling on a few of the inputs they can tack solder
a cap on the input jack. Or use TRS jacks - half-inserted would
be AC coupled, all the way in would be DC coupled.
-Cary