@Ronin1973 Do you have any output modules you would suggest that have a pair of built in isolation transformers?

EDIT: I see three at the moment that seem to qualify and also have a small profile:
- Happy Nerding's Isolater
- Joranalogue Audio Design's Transmit 2
- WMD's Pro Output

-- CardiacTasty

A couple of others that work nicely AND which have parallel stereo mixing capability (great for FX returns) would be Bastl's Ciao! (5 hp) and Happy Nerding's awesome OUT (6 hp). Both of these have some interesting routing capabilities that allow you to do a few more things there than just level step-down and isolation, and both also give you an extra headphone pre.