Originally Posted by NicksHitachi
Should I use Dipoles?
IMO, No. Properly setup surrounds should have no problem producing the surround field, IMO the dipoles are a "trick" for those either not willing or able to properly devote the space or resources to achieve it.
Probably much too late reply to have any relevance for the project, but still...
The interesting part here is "surround field
". You don't want to be listening to the surrounds by way of the on-axis direction as you do front speakers. You aim for a diffuse sound that has no real sense of direction, at least not on lower volume sounds.
Now, there are dipoles and dipoles, just like there are better and worse direct radiators. But after changing to my current surrounds, I would not ever go back to direct radiators... Heck, I have to lean into each speaker just to verify they're still working... that never happened when you stood up close to the surround speakers before.
Here's a borrowed picture of one (with a placement I wouldn't recommend at all!):
I use three of these per side surround channel and one each for the surround-back channels and there's nothing that gives me any reason to say the sound comes from loudspeakers... it's a totally diffused sound field. (About $7-8k worth, though.. and not available outside Sweden)