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RE: Speaker Separation Distance

Posted by Satie (A) on February 14, 2017 at 10:35:43

In Reply to: RE: Speaker Separation Distance posted by rosendds@frontiernet.net on February 14, 2017 at 10:03:26:

I don't think the speaker's distance from each other and the distance to the central listening position is going to materially affect the off center imaging, since these positioning geometries can be compensated for with toe in adjustments. The change in the listening angle provides just a change in the size of the soundstage, given sufficient clearance from the walls. What these angles do not change substantially is the size of the sweet spot and the clarity and definition of images from the side seats.

The main effects on the off center imaging are had from tweeters out vs. in and toe in angles. The off center seat can have better imaging at the expense of image definition at the center. The drivers can only be optimally aligned for one listening seat since they are arrayed laterally, as opposed to a conventional speaker or single driver speaker where there is vertical driver alignment or no alignment issues with a single driver having reasonably good dispersion..In these latter cases the lateral change in seat position allows near optimal imaging to be retained at the side seats.

The best stereo coverage is to be had by a single line source driver covering 200hz-11khz and having good dispersion throughout that range, supplemented by a woofer and supertweeter. Even then, the side seats will not provide quite the ideal imaging as the center seat. Another option is having the tweeter kick in at around 1khz to cover most of the imaging related signal and having lesser sensitivity to lateral differences in driver offsets. The 3way 1.7 is not quite the perfect speaker for a wide stereo field.

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