I can only play the "pro-logic" or "3 way" to not get an echo. When I go with "theatre" or any other surround sound, I get an echo I cannot get out.
I'm running this through my computer and a projector.
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You want to adjust the "DELAY" setting on the receiver. The standard (default) delay setting is 20mS, which may need to be shortened if your speakers are well behind your listening position. In a proper setup, you should not detect a significant echo effect in surround programming (unless it is a purposely "echoey" scene). Also, make sure you don't have any of
the "enhanced" DSP modes engaged -- some of these are quite echoey.
if it has speaker set up, there should be a setting for distance. You might have it set close, so that by the time you hear the fronts, the rears should go. Try setting it farther each time until it sounds right.
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The echo could be caused by something called latency. On some systems you can adjust this. It allows you to increase or decrease the speed the sound comes through the speakers, based on how far from your ears they are placed.
May be you have to set the Pro-logic option soundfield, this will matrix a 5.1 surround sound effect, unless of course you are sending a Dolby Digital 5.1 audio signal from your TV broadcast into the Home theatre system, also have to check the TV audio output to send audio output to a Home theatre system in other than 2 channel stereo.
The echo you hear is the audio delay between your TV speakers and Bose speakers. Muting (or lowering the volume) on the TV will eliminate the echo. Some TVs have a setting to turn of TV speakers entirely, allowing you to listen to your TVs audio strictly through your Bose system.
Check carefully the RCA conections or others.Sometimes this conections break inwards end cause this problems.Check also the lead and the Set up from surround sound.Verify if the TV has settings for this kind of operation. A strong hug !!!