Originally Posted by Eyleron
Toole says dipoles aren't needed anymore now that we have uncorrelated discrete surround channels.
For me, their sound field is too diffuse. And I don't like that my Paradigm dipoles radiate to the front of the room, too. At least not while I don't have treatment on the front wall. I don't need to hear side/rear cues coming from my front soundstage!
On a lark while EQing the sub today, I plugged the right surround ADP-170 dipole into the front-right channel. Ran a full range sweep in REW. Just like Toole said they do, the high frequencies were SEVERELY rolled off.
I will move the dipoles to the rear walls after I buy bipoles to swap in for side surrounds.
I think it's pretty telling when Paradigm, long a hold out for making only dipole surrounds and always quoting that dated THX article from the 90's, switched to bipoles in their new Series 7 Monitors!
Toole has a point. They're certainly rarely needed... yet are still often desired, as bipoles can often be too direct at the sides with 5.1.
Good point about not wanting surrounds bouncing off your front wall and hurting the soundstage.
Although I guess it really comes down to the room and how it reacts.
Always a good idea to test your surrounds as fronts to see how they measure up, as you've done.
Too many folks never do this.
Those ADP-170's are a seriously old-school dipole design, with next to no angling, and everything you hear is way off-axis.
I used to have surrounds like that and they were horrible.
A design like the Monitor Audio BXFX or RXFX can be worthwhile, as the woofer faces forward (and is in phase), the angling of the tweeters isn't too severe, and they're dipole/bipole switchable.
Having a larger 6-inch woofer is also nice....http://www.monitoraudio.co.uk/products/bronze-bx/bxfx/http://www.monitoraudio.co.uk/products/silver-rx/rxfx/Have you considered Axiom quadpoles or Mirage omnipoles?