Thank you very much for the short hand, Mojo and Ian.
In regards to being able to drive a power amp to it's potential [Eg. 1volt power 2volt} From the pre output. Can you over power the power amp? Say 2volts into a 1volt or 1.5 nominal input into distortion? Or would that be decided by the power amps inputs? {Eg. 1volt or 2 volts maximum power draw}