Dsx wides

 Can I run dsx wides in a 5.5 meter wide room?
What should be the minimum distance between the main left and right speakers and the dsx wide speakers?

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8 Comments

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    Chris Kyriakakis

    The speaker locations are indicated by angles. Center is at 0° and L and R should be at ±30° ideally. That corresponds to about the same spacing as the distance from the center speaker to where you sit. The Wide speakers should be at ±60°. That is about twice the spacing as the front L and R speakers, but many rooms are not that wide. The best way is to place the Wide speakers should be by the side walls at the proper angle. Then MultEQ will adjust their distance to virtually push them further back.

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    Hugo S

    Hi Chris,

    Does your last sentence mean that in DSX, besides the correct angling, the Wide L and Wide R distance used by/in the processor should be equal to the distance found for L/R speakers? Does the same apply for Height speakers.? Thks. Hugo

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    Chris Kyriakakis

    Hi Hugo, yes all speakers should ideally be at the same distance from the listening position.  Of course, that is not possible in most rooms so the delay adjustment is used to virtually move the speakers to the right distance.

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    Hugo S

    Hi Chris, thks for the quick answer.

    OK I understand, that for DSX purpose, repositioning of all speakers on a virtual  hemisphere, all distances should be identical, even though an individual distance does not represent the physical distance of the location of a speaker.

    Now if the reference distance (radius of the hemisphere with the MLP as the origin) is the L/R speakers distance, and if the Wide/Height speakers are physically located closer than this distance is, I understand that the internal correction in the processor will delay the W/H signal to reposition it/them on the virtual DSX hemisphere.

    But then what happens if a speaker is physically located at a futher distance than the L/R (radius) reference distance? How can the signal be electronically anticipated as it is physically located farther than the initial reference distance L/R?

    Does this mean that the reference (radius) distance of a DSX hemisphere should then be the farthest distance of any of the 11 speakers (though including back speakers) so that all the remaining other 10 speakers could be electronically delayed accordingly, giving all of them then the possibility to be repositionned on the DSX hemisphere?

    Now owner an DSX 11.2 installation, I don't remember seeing a reflection of such such distances for the speakers in  in my Onkyo 5508 processor. Should I manually correct them, to reflect such a DSX hemisphere?

    Many thks for your answer,

    Brgds,

    Hugo

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    Chris Kyriakakis

    Hi Hugo,

    The "reference distance" is determined by the speaker that is the farthest away from the listening position.  The system measures the distance (actually the signal delay) of all the speakers.  Then all the other speakers are delayed appropriately to match the one that is furthest away.  It's not possible to apply "negative" delay to bring a speaker virtually closer than it actually is.

    When you run MultEQ these distances are automatically calculated and stored.  They are in effect when you turn on DSX.  No need for any manual adjustments.

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    Hugo S

    Hi Chris,

    Thks for this reply... and sorry for the un-earthing of something which brings only un-necessary confusion.

    Hugo 

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    Ed Smigo

    Chris,

    I have my front soundstage on a 20ft wall so my angles are almost right, but my wides are approx. 55 degrees.  Now I have moved them up the sides walls a little bit to get them at the right angle, but how should the speakers be facing?  Should they be facing the center of the room or should I have them angled to my main listening position?

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    Chris Kyriakakis

    Hi Ed,

    55° is perfectly fine.  If you do decide to move them to the side walls, then you should point the speakers to the center of the listening area.  This is a general rule for all speakers in the system--not just the Wides.

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