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Multi-Way Conventional loudspeakers with crossovers

Anyone with experience with 4 speaker or + for stereo reproduction?
Anyone with experience with 4 speaker or + for stereo reproduction?
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Old 4th June 2013, 12:06 AM   #1
murillollirum is offline murillollirum  Brazil
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Default Anyone with experience with 4 speaker or + for stereo reproduction?

I listen to a lot of classical music and jazz, and one thing I noticed is that with a couple of speakers behind the listening position as a surround position the music seems more spacial and more pleasing, anyone has tried this? is not a 5.1 or home theater kind of system, just a stereo with couple of speakers to give some ambience...
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Old 4th June 2013, 12:15 AM   #2
DUG is offline DUG  Canada
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Time delay (or phase shifts) due to speaker placement or simulates bigger room or echo.

My guess.

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Old 4th June 2013, 12:21 AM   #3
murillollirum is offline murillollirum  Brazil
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Quote:
Originally Posted by DUG View Post
Time delay (or phase shifts) due to speaker placement or simulates bigger room or echo.

My guess.

maybe... with JRiver I can simulate a `large hall`effect in the DSP module and it really enhance the effect, but the treble seems a little hash to me.
I think a better approach is just to put 2 satellites bellow the listening position and above the ear level, as surround, not pointing to our ears. but would like to hear other suggestions.
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Old 4th June 2013, 12:26 AM   #4
murillollirum is offline murillollirum  Brazil
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I found a good text to begin... Matrix Surround for Music
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Old 4th June 2013, 01:12 AM   #5
murillollirum is offline murillollirum  Brazil
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how to achieve a L-R and R-L from a preamp? I know R+L is just put in parallell the positives... Is L-R using the L hot in and the positive and R hot as the negative?
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Old 4th June 2013, 01:25 AM   #6
PeteMcK is offline PeteMcK
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You can do it at the speakers:
How to connect surround sound speakers to audio system without such outputs
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Old 4th June 2013, 02:32 AM   #7
murillollirum is offline murillollirum  Brazil
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IMHO this does not make any sense since the negative terminals of every amplifier are linked together as one. In every circuit the ground is only one. or am I wrong? Adjustable Surround Sound System.jpg
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Old 4th June 2013, 02:51 AM   #8
Greebster is offline Greebster  United States
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^ that's an old ambience enhancement trick from back in the seventies. Connecting between positive terminals and negative terminals together only reproduces the stereophonic differential signal. Specific placement can and does have many effects, not all of them good, but neat none the less
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Old 4th June 2013, 02:56 AM   #9
Greebster is offline Greebster  United States
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Typically when placed behind the listening pos. there's an analog delay/reverb. Placing near the front speakers can either do ambience enhancement or image enhancement similar to the old Polk SDA series.
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Old 4th June 2013, 02:59 AM   #10
jjrenman is offline jjrenman  United States
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The diagram shows what I believe is called the Hafler effect. Whatever is different between the two fronts will come out the back speakers.
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