Hi i have a yamaha reciever dvr-c300 and yamaha sub woofer nx sw-300. i have 2 front,2 rear, center speaker and a subwoofer. What i cant figure out during dvd play why the front right speaker only plays sound sub plays bass others nothing. but when i put it on surround i get all sounds through the speakers but not the people talking on the dvd. i checked all the speaker connections and they are correct.my reciever connects to the sub using a 15 pin connector cable which till i replaced the cable i had no sub woofer sound but all the other speakers worked at least.
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Several possible answers. First - is that the Yamaha has a fault that is sending a signal with too much power on it. And the sub detects this and switches off.
Second - either the Receiver or Sub is switching off when no audio is present. A setting problem?
Third - the sub has a fault, possible overload, and goes to standby for safety.
The signal that comes from most tv's via the optical output is a stereo signal only. That is what your receiver is reading. You would have to manually set your receiver to decode the signal into surround,.
the sub woofer speaker should be connected to the Center, the main speakers should be set to the front and the secondary ones in the rear....(front = main just in case surround is not on, center = is for that ump / boom sound, rear = that just pass you by (make you look behind yourself)
Get a powered sub-woofer that has speaker level inputs, then run your front speaker wires into the sub-woofers speaker level input and then run a set of speaker wires from the sub-woofers speaker wire output to your front speakers. This is a common way to use a sub-woofer with a receiver that doesn't have a sub-woofer output.
Most powered sub-woofers have these connections, just check it out first before you buy one. They look like speaker jacks on the back of the receiver.
Yes, that type of connector is often used for a VGA signal for a computer monitor. But in this case it is an all-in-one connector Yamaha used in order to simplify the hookup of this home theatre system. Unfortunately, the subwoofer is only usable with the DVR-S300 receiver/DVD player.