Just collected the inuke and no fault found and channel B was working. They say both channels work and output seems ok to them. They think it factory resets protection in the amp when it is unplugged for several days. I had a listen whilst there and yes it sounded ok but it was just driving some mini monitors. Got it home and both channels do work but the output is dismal and not sufficient on my driver (when not bridged)
I was thinking of buying a inuke nu6000 but in the end decided to cut my losses and have just order a svs sb2000. Ill keep the inuke for if i ever get around to doing that DIY build.
for your help guys