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Troubles with receiver and sub

Home Theatre Systems


New Member
Mar 6, 2015
I recieved my new sub in the mail today, XTZ 99 W10.16. My problem is; it do not want to be connected to my receiver Harman Kardon AVR 260. I have had this receiver in almost 2 years, but never ever connected to a woofer. FYI my surround speakers are from my old Logitech Z-5500.

The surround speakers are connected with the screw-nuts, still there are missing screw-nuts for subwoofer so I'm using RCV cabel for sub only.

This is how i connected it. Nothing i've forgotten, is it? I know the input to the reciever is ok since I've tried many different ways aswell as the test tone on the reciever is not working for the sub.

The RCV cabel for the sub is missing an Y-switch since it's two connections at the sub and only one at the reciever. The user manual says it's not a problem, only makes the sound 3dB lower.

the power cabel is connected aswell. Seems to me the signal is disapearing some where. Are there some way to check if the reciever is sending out signals at all? Some kind of tool?

User manual Receiver
User manual Subwoofer

Any help is appreciated! :clapping: