I tried to contact Onkyo - and was told there are no current service agents in Australia...
In the transition to new owners and distributors, they dumped/lost the existing service agent channel - and (according to them) are setting up a new service channel.
Once they have that in place - parts for the current range should become available.... in theory.
I was contacting them for parts for my Onkyo TX-SR876 (HDMI Board) and Integra DTR 70.4 (DSP Board) - but even once the service channel is in place, it is anyones guess whether parts will be available for older, out of warranty gear.... so both of my older AVR's may end up as boat anchors due to lack of parts.
For now, it is a matter of patience, and giving them time to sort things out locally...
A political mess was generated when a couple of the old distributors guys tried to take the Onkyo distribution and set up shop on their own, back stabbing the existing distributors.... lots of nastyness apparently.
Internationally Voxx has been setting up relationships through its own distribution channels - which is how Klipsch is distributed... but they also have a relationshop with SmartAV who do the custom AV installations for Voxx and the brands in the US, and recently set up shop in Australia (also buying out Control4 locally) - and they may be the distributor for Integra.
It seems to be a mess in Aus and NZ. And it will be a few more months before we see where things stand!
