MOTM

>This is not because I am so concerned about the effects of the motm
outputs looking into a high impedance voltage divider, but rather
putting a high impedance at the AC coupled inputs of the mixer.

Feel free to use a 11:1 potential divider network with a 10K and 1K
resistor to ground. Your output source impedance will be low enough
(less than 1K) so as not to cause any problem. HF filtering will be
unlikely to happen unless you have excessive capacitance in your cables.
Its only capacitance to ground that really matters here. You can fit
this little network in a jack plug if you are careful.

Regards,

Tony Allgood  Penrith, Cumbria, England

Oakley Modular Synth and TB3030:
www.techrepairs.freeserve.co.uk/projects.htm
My music: www.mp3.com/taklamakan