Dipole Surrounds with L/C/R 340's

[millerwill]

I have 340's for the L/C/R speakers (Pio 1014 AVR), and for now use Infinity Primus 150's (4) for the two side-surrounds and two rears. I've been hearing much about the more diffuse surround sound one gets with dipole surrounds. (I do feel sometimes that the 150's are too localized in their surround role.) Are there any specific dipoles that people would recommend to go with the 340's?

[curtis]

For reference...this is what I posted over on AVS to your same question:

Before you go with bipole, I'd suggest you compare the difference between them and direct radiating speakers. It is one of those things that boils down to taste.

More and more surround effects are localized and not just ambient.

In fact.....someone please tell me if I am wrong...but DVDs are mixed with direct radiating speakers all the way around.

Nothing more to add from that post.

[mattepntr]

Just wanted to add that Dolby recommends direct radiating surrounds.

Dipoles aren't a good idea for MC music either.

[millerwill]

But what about HT? Do you guys recommend direct (monopoles) also there? I have also heard it recommended that one might do better to use dipoles for the two rears and monopoles for the side-surrounds. Comments?

[BradJudy]

While I haven't heard them, if I had to pick a multi-pole surround to go with Ascends, I would check out M&Ks. It looks like they make a tri-pole (this is how M&K handles surrounds) for $450/pr (and others at $1500/pr)

[millerwill]

That's pretty pricy for a pair of surround back!

[mattepntr]

I just went back and reread some of Dolby's literature.
They're actually kind of non-commital about which kind of speakers
work best for surrounds, leaving it up to personal taste. Maybe it
was THX that, in the beginning, recommended dipoles as surrounds,
and later changed to direct radiating as their preference.

I do know that film sound mixers design modern soundtracks to
be very directional in the surround field, hence DD-EX and DTS-ES.
Have you calibrated all your speaker levels so they match? perhaps
your surrounds could just be playing too loud, giving them too much
presence? Just a thought

[curtis]

But what about HT? Do you guys recommend direct (monopoles) also there? I have also heard it recommended that one might do better to use dipoles for the two rears and monopoles for the side-surrounds. Comments?

The Dolby recommedation is for HT. Before you decide on bi-poles, I suggest listening to them with a variety of material before deciding.

If I had to bo with bi-poles...I would use them as the side surrounds.

[BradJudy]

That's pretty pricy for a pair of surround back!

Di/bi/tri-poles will tend to cost more than monopoles for the simple reason that they have twice as many drivers. This might be another reason to consider monopoles.

[millerwill]

Yes, I think it is THX that has recommended dipoles for surrounds. A very detailed 'jury trial' in 'Home Theater Mag' had the jury recommending (for HT) dipoles for the rears, and either dipoles or directs for the sides. And also 'yes' to one of the above comments: the surrounds are less 'directionly objectionable' if I am careful to have them level (and not 'hot') with respect to the other speakers.