Harman Kardon AVR 220 - sub output only on certain surround settings

Nov 10, 2006 0 Replies

been using this receiver for about 4 years without a sub, but last week i finally picked up a powered subwoofer for it. Connected using the SUB OUT on the receiver with standard RCA connection.



for some reason, I don't get any output at the subwoofer when the surround setting is on "no surround" anything "Dolby" - (Dolby Digital



5.1, Dolby Pro-Logic II, Dolby 3-channel). I HAVE subwoofer output with hall, theater, 5 ch stereo, vmax, and logic7.

All is true using inputs from: 2-ch analog (CD player) , 5.1 channel optical (Xbox playing DVD) , 2 channel PCM optical (Xbox playing CD). The only thing I haven't tested is DTS, because I can't seem to find a DVD with DTS anymore.



I do have some electronics knowledge, so if anyone has any advice to fix my output problem, I'd gladly appreciate it.



Jon



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