Ok Folks, My PB2 is currently out of action, Its out of warranty and my budget is near on non existent at the moment! So what I could really of with right now is a list of ALL PORTABLE fully balanced amplifiers that I can take a look at and weigh up my options. Lower end of the price range would be preferable, Thanks! Not a good day being had if Im honest! Of course if anyone wants to donate the odd SR71B or whatever I think right now Ild probably bite your arm off lol!