surround in stereo amplifiers

hy friends!
:)

a long time, i had some magazines called "stereo review"!
one article that i test and works very fine....
but in my words, i don't have the magazine no more!

in stereo amplifiers we have the right and left channels,
with one speaker in each. dhahh!

each speaker have the positive (+) and negative (-) bornes
plugged in the positive (+) and in the negative (-)
of each channel from the amplifier...(dhahhh again).

with 2 more speakers, (read the hints in the end of this post)
we can get a incredible surround sound!

---> jump the NEGATIVES (-) of this news speakers TOGETHER!

--->then take one POSITIVE (+) of this speakers and plug in the
POSITIVE (+) of the RIGHT channel from the amplifier.
--->take the other POSITIVE (+) of the other speaker and plug in the
POSITIVE (+) of the LEFT channel from the amplifier.

how it works....example:
if the right channel have the guitar,
the left channel have the drums and
in both have the voice.

in the new surround speaker you will get the guitat and drums
and a little reverberation (if any) from the voice!
this new surround speakers only sound the differences from the channels!
everything that is common in the 2 channels,don't will be sound in the surround, right?
;)
little hint:
you can use only one speaker
---> only IF
the impedance of this speaker have the DOUBLE impedance
of the minimal impedance of the amplifier use!
if the amplifier support minimal 4 ohms per channel,
the speaker needs 8 ohms minimal.
sorry the "redundance" but is to be it clear!

go ahead, i use it from 30 years ago...
a long time ago when dolby surround don't exist!

it's called "Phantom Center Channel"

if your source is stereo,you can expect very cool effects
and can be called "artefacts of phase cancellation and phase inversion".

You hear things that are not present in either the left or the right channel,
cos works like an "Differential OP Amp" that means:
everything equal in in the 2 channels is cancelled, you will hear only the differences!

hint:
musics with less instruments give more effects,better if the instruments are in differents channels!
is great for your movies: dvds or vcds, svcds,etc...
and audio cds/mp3 too!

great embrace for all!
....and you know me (sorry my horrible english)
:eek:
 
gaffer072003 said:
if you need drivers for it go to crack and serials
Drivers???serial??for what???did you read his post???
Anyway centar chanell is is great for surround in the movies(voices are so much clearer)but is not intended for listen regular stereo cds.
 
LTR12101B said:
Cracks? - not here!

Besides, this is a wiring trick also known as the Hafler system

http://home.earthlink.net/~kantack/surround2.htm
Some good illustrations of the wiring

This form of ambisonic decoding tends to work better for live recordings, with natural out of phase reflections
perfect, and with big details that i forgot!
thanks for the link with illustrations LTR12101B, great.
:)

like zver ask i do the same:
"Drivers???serial??for what???did you read his post???"

yeah....for what????
:p

thank you friends!
:)
 
Just reminded me, there's a similar trick with headhones - putting a resistor in the common return can reduce the "inside the head" stereo position. I also recall an experimental binaural plugin for foobar.
 
LTR12101B said:
Just reminded me, there's a similar trick with headhones - putting a resistor in the common return can reduce the "inside the head" stereo position. I also recall an experimental binaural plugin for foobar.
"...reduce the "inside the head" stereo position"
oh yes, i read about it somewhere...(don't remember where)
seems that turn the sound like "panoramic" ,
less presence in the center but with more "space" in the sides!

:)
 
Thanks Jorel for that m8, I've had my Stereo system hooked up that way for the past 30 years or so and sounds great. I must get myself a 6ch surround theatre one day but I still enjoy my 2ch + rear ch so much I'm reluctant to change. Besides my speakers are Reference speakers and cost the earth when new, I just couldnt toss them.
 
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