Notepad-12FX : Broken after 2 uses.

I was initially very pleased with the sound quality but that is a given when you buy Soundcraft (this isn't my only one). It feels good and inspires confidence when gigging. Unfortunately I played a 3 hour duo gig with guitar and vocals on the Friday and a DJ/Vocal gig on the Sunday and half way through that it tripped out and started making a boom boom noise and is now dead! I will be asking for my money back or a replacement as I am sure I've been unlucky with this unit. But. I do not expect this from such a manufacturer and I expect professional results regardless of this units size. My little Behringer from 10 years ago is essentially rubbish but it still works!! Very disappointed to say the least.