RE: Ask an Audio geek
April 1, 2016 at 12:53 am
(This post was last modified: April 1, 2016 at 1:07 am by Alex K.)
(March 31, 2016 at 7:37 pm)vorlon13 Wrote: If you're really enthralled with this, connect the left and right speakers normally, and put your difference speaker behind your listening position. You now have a 'Hafler' surround system.
I had my stereo wired this way in '86.
I've been using this scheme since forever as a poor man's surround sound for watching movies. It's good enough that I never had the urge to buy a proper surround decoder and amps. Everyone should try it. I hook up two rear satellites (simple JBL controls) as difference speakers with reversed polarity such that each is in phase with the main on its side if the other channel is silent. The one thing dearly missed is a center for dialogue, but I've never experimented with putting the sum there. With one amp matching levels can only be achieved via placement, but again, it was close enough that I never kept a second amp in the system for long. Of course in theory it deminishes channel separation for the mains, but with damping factors 400 and more I don't care much.
The fool hath said in his heart, There is a God. They are corrupt, they have done abominable works, there is none that doeth good.
Psalm 14, KJV revised edition
