Today I am upgraded my Philips inbuilt ddb to videocon hd 2244 rf box.manufactured date Oct 2015. Download I'd is 29. And connected via coaxial cable with my Philips ht 5.1. Feeling better dd audio. But some HD,as channels sound volume varies. So always requires to adjust d volume level via my remote.Bcas d d2h stb volume control not working . All English dd channels giving d notable dd effect. Rest in next if u require any other things about the box