welll................................
I reckon that the 'best' way to hook it up would be to get yourself an XLR equipped microphone cable and hook up the sm58 to the XLR in (that there 3-pronged 'mic style' plug). Then I would get a cable that has an XLR on one end and a 1/4" balanced plug on the other....plug the XLR end into the Tube MP out and the 1/4" into your Delta66 breakout box....
If you're against the idea above:
keep the mic cable plugged in as above, and then -
you could also get a cable with 2 1/4" ends and plug one of each into
the TubeMP out and Delta66 in...that would be the 'unbalanced' varitey of connecting the 2...which, technically, would be less-quiet than the 'balanced' variety (see paragraph above)....but it really shouldn't matter unless your running a long cable between the preamp and Delta66
does that make sense??
a synopsis:
- microphone XLR to TubeMP XLRin
and one of two:
- unbalanced connection (1/4" TubeMP out to 1/4" Delta66in) - good
- balanced connection (XLR TubeMP out to 1/4" Delta66in) - better
peace