Same as above. (3.5 years experience at Ketron UK), but in the case of the SD4 there have been no reported faults at all. Although we have had a couple of people order AC adapters as the lead broke.

I did forget about one other MidJay Plus that was returned out of warranty. The power supply board had a dodgy DC connector and made the instrument reboot randomly which in turn damaged the hard drive. Once the power supply board was repaired and the hard drive changed there were no more reboots and the customer has not been in touch with us for around 18 months.