I bought a new amplifier last June and since then, it has failed on me, the second time being yesterday. The unit will not switch on at all, so could be something as easy as a blown fuse. However, the fact it has happened twice in just over 12 months does not instill confidence in the unit. I have had about 6 amplifiers spanning 25 years and this has never happened before. Do I have any rights to hand this amplifier back and demand a new one (like rejecting a car)? Love the amp, but when it won't switch on, its a waste of time.