Thanks, Berwhale, if indeed that is your real name. I downloaded the app a few weeks ago and popped the numbers in (great app), but I didn't quite trust them because even though on paper it should be plenty, I was still getting over the shock of having to crank my amps so high to make them open up, they're wee beasties. They seem to demand you go past the point where you normally would, volume wise.
However, if that's what the numbers say, who am I to argue?. I'm not exactly sure how much power I'm stuffing into them at home. Edit, I just checked and it shows -13db on high power, give or take depending on the track, out of the RME's phone socket, the IEM output doesn't push them properly. What that is in milliwatts I don't know. Actually I do, it's too many, but it sounds damned good. I looked up your Pinacle P1's and they seem like they have the kind of signature I enjoy, I might have to give them a trial. Anyhow, thanks for your help, I'm reassured that the wee box of tricks Radsone have made will do the job now, it'll be nice to finally take these mobile!.