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Dipole or mono for sides?

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5 replies to this topic

#1 of 6 OFFLINE   BrianKR


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Posted January 24 2004 - 04:02 AM

I am making the move into 7.1 and I want to know what is the better way to go for side speakers, dipole or monopole?

#2 of 6 OFFLINE   Kevin C Brown

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Posted January 24 2004 - 10:02 AM

I prefer dipoles over monopoles. But...

1) If you have them the recommended 2 - 3 ft above ear level, it matters much less.

2) If you have the speakers directly to the sides, it matters a lot more. (I have my surrounds about 7 ft away, but also about 18 in back from horiz.)

3) You also might want to consider bipoles (Def Tech) or Omnipoles (Mirage) too.

I have used dipoles, monopoles, and bipoles/omnipoles. The monopoles were best for multichannel music because the imaging was incredible, but that incredible imaging was a very big minus for movie soundtracks due to the localization of the speaker. Just too distracting for movies. I liked dipoles a lot for movies, but not so great for multichannel music. I have Mirage omnipoles now, and I personally feel that bipoles/omnipoles are the best compromise between imaging for music, and spaciousness for movie soundtracks.
If it's not worth waiting until the last minute to do, then it's not worth doing.

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#3 of 6 OFFLINE   Ronneil Camara

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Posted January 25 2004 - 05:03 AM

I'm still learning about HTs. Can you tell me the differences between dipoles, bipoles, omnipoles and monopoles?

#4 of 6 OFFLINE   JohnSmith


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Posted January 25 2004 - 08:02 AM

Monopole- standard speakers like satellite, bookshelf, floorstander. Front facing drivers, and all drivers are in phase. Used for main speakers, and surrounds (in a larger room)
For example Kef Q1, Kef Q5

Bipole- used as surround speakers.Usually have four drivers. Two treble, two mid, sometimes three sided triangle shape. Both sets of drivers are in phase. Front/back panning is fairly wide, but could still be noticeable.
Definitive Technogy BP-2X.

Dipole- used as side speakers. Usually have four drivers. Two treble, two mid. The front facing drivers are in-phase, rear facing drivers are out of phase. Speakers placed at 3 & 9 o clock from the listening position. The area between the sides is the null, which causes the speaker to disappear- location of the actual speaker is hard to localize as the front/back spread is pretty wide. Best used for movies. Some people do not like the directionality of dipoles. Some have exta woofer to add better bass handling.

Tripole- similar to dipole (back out of phase, front in-phase) however usually a in-phase woofer that faces the listening position. Adds more lack of directionality/diffused sound of dipoles.
M&K Tripole surround series.

Omni-poles- a 360' driver spreads sound in all directions. No experience with these, but have heard of some installation issues. Mirage omni-sats.

#5 of 6 OFFLINE   Jeremy Tebo

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Posted January 26 2004 - 08:22 AM

So here's another question - if he's got a 7.1 setup (I'm thinking about doing the same), what happens when you play 5.1 SACD? Which speakers do the surrounds play out of - the sides or rear? (or both?)

#6 of 6 OFFLINE   Kevin C Brown

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Posted January 26 2004 - 12:51 PM

Depends on the pre/pro or receiver. Some you can configure to play the surrounds *or* rears, some play both (but attenuate each 3 dB to get the levels right with the front 3).
If it's not worth waiting until the last minute to do, then it's not worth doing.

KevinVision 7.1 ...