Eoghan, Have you the jnr or the snr Power Plant? What's the current draw on the line6?
I just bought a few of the jnrs myself, went for that one as it's five isolated outs which the snr doesn't have for some reason and I got a few few fuzzes that need isolation. Must post my latest board now that it lives in it's flightcase or as I call it "rocket flight control".
I've the larger one. I'm not sure the smaller one existed when i was buying it actually, but might pick one up now for board #2. The line 6 is 9Vac @1200Ma - it wont run on any less ma's so far as i remember.