+1 for the DC agent at Bankstown. First rate service. I took in a H10-13X ENC headset that was playing up. I bought these used. They checked them over, replaced the lead from the battery pack handed them back and said "No charge". I emailed DC in US and let them know how delighted I was with their product, warranty stance and the good work of the local agent.
When I am ready to upgrade I will of-course look favourably at another DC headset.