Agree with Scottht, that the rear level, is factory preset low and remembered by a battery-driven memory in the AVR85. Find the Rear Level option and increase the volume. The five amplifiers are an identical 85 watts, all channels can play at the same volume, with different surround information.
Harman Kardon AVR85
Hi I have a Harman Kardon AVR 85 and BOSE AM15 with a Sony DVPC600 DVD player. I find that my surround channels (back speakers) are not giving me a good output. There is setup involved in AVR85 (am choosing small speakers) and in DVD (again small speakers) that i did but inn all the modes prologic,hall,matrix,movie,3stereo and stereo I get a very low output when i play from my DVD player. Is there some thing that i need to setup to get good effect Thanks in advance Vijay