I am rather suprised that the device did not get passed onto yourself for detailed measurement, it is after all a quite "professional" device it seems
I'm not surprised. It's a neat and well made device, but I would have no need of it given my 'professional' preamps which all have more than enough gain to cope with ribbon mics etc. It is intended as a problem-solver for the budget end of the market wishing to use low output mics with inadequate budget preamps.
The CloudLifter isn't unique, by the way. There are other similar devices from other manufacturers. The link below, for ecample, is to a review I commissioned for a now defunct broadcast sound trade magazine which I edited, and is a more technical appraisal:
The extended bandwidth is worrying.
Yes it is... if true. I have to repeat that I have no first hand evidence to support this assertion, only received feedback from others...
If the Cloudlifter IS open to mobile phone chatter it is going to be next to useless.
It is housed in a decent metal box, and it seems reasonable to assume decent grounding practices are in use. PW didn't report any issues with phone breakthrough... but equally he doesn't appear to have made any specific tests along those lines.
If the unit hasn't been returned yet I'll try to get hold of it and run some tests...
Technical Editor, Sound On Sound