hai, sadly my yamaha was sold a month after bought marrantz.
i should keep my yamaha for the rainy day (like now)
correct, it was refurbished, but they gave me full year warranty for processor. for MM8003 is brand new
i think i had correct requirement, i have been using UPS for my processor only, for power amp i did not use any UPS (since it requires bigger electricity)
and i have been using several brand such as audio analogue, denon, rotel and yamaha, all not using any UPS and did not find anything in trouble, except for my processor.
well just a week ago, the Marrantz HQ in Singapore replied my mail, and they will investigate to their Authorised partner, and the next day voila .... the SVC manager called me, apologized and invite me to their office
but my subject is clear, if it can't be fixed in a month, i will ask for full money refund + compensation (5 months for waiting, i think i deserve it)