Quadraphonic simulation with four speakers

[olds1959special]

Is anyone else doing something like this?

 

[Zek]

For quadraphonics you need an SQ decoder and of course a sound source (record) that has been recorded in SQ.
Anything else is pointless.

 

[Jim Taylor]

This was popular years ago. It sounds OK with early stereo recordings, which have more separation between channels than what is now common. With current recordings, it is, as @Zek said, pretty much pointless. Doesn't hurt to try it, though ... you might like it.

Hafler circuit - Wikipedia

en.wikipedia.org

 

[olds1959special]

This was popular years ago. It sounds OK with early stereo recordings, which have more separation between channels than what is now common. With current recordings, it is, as @Zek said, pretty much pointless. Doesn't hurt to try it, though ... you might like it.

Hafler circuit - Wikipedia

en.wikipedia.org

“The rear channels will playback out of phase sounds, while the forward channels are unaffected.”

Does this mean I should put the rear speakers out of phase to get the effect Hafler was going for? And turn down the volume?

 

[Jim Taylor]

“The rear channels will playback out of phase sounds, while the forward channels are unaffected.”

Does this mean I should put the rear speakers out of phase to get the effect Hafler was going for? And turn down the volume?

If you hook up the speakers per the diagram, they will be out of phase. As for volume, it helps to scrounge around and see whether you can find one of these: