how do you go digital-in usually?
Well, when I stealth, I don't. I run analog-in to my D100. Heh - you got me there.
I mostly do stealth taping and since it's sometimes very difficult smuggling all of your equipement into the locations i mostly leave my SBM-1 at home. Then the analog-in of the D100 seems to be the only choice of recording?
You could run digi-in to your D100 via the SBM-1 easily enough. But as you say, it's just more gear to get in the door. And honestly, I think the D100 sounds mighty fine analog-in.
My Setup is
DPA 4060's > MMA6000 p/s >( SBM-1 >) Sony D100
Do you have any other suggestions how to improve my setup for stealth-taping?
Well, that depends - in what way are you not satisfied with your recordings? I think the only way I could see improving your stealth gear would be to run directional mics - cards or hypers. But cards/hypers may or may not be desirable depending on the kind of sound you prefer out of your recordings, the problems you feel you encounter with your current gear's recordings, how much money you're willing / able to allocate to additional gear, etc.
The R-1 definitly would be nice, since it records 24/44.1..it seems quite large deck however
You'd be surprised how much gear one can sneak into a venue! Obviously depends if there are patdowns, metal detectors /wands, etc.
I recently considered Sony Hi.MD drives (only 90 mins run-time), JB3 (too big) and the R-1.
Honestly, I think the D100 is your best option at this point:
[1] you own it already
[2] it's proven field-reliable
[3] it's easily snuck into venues
[4] it sounds damn good