Positioning and Listening distance


As run-off from another thread ( Legacy speakers ), we ended up talking about speaker positioning, listening distance and minimizing room interaction. While we are all aware of the various formulas for speaker placement and listening position, none of these take into account the size or design of the speaker. As such, i've found that speakers with a lot of drivers or drivers that are spaced out quite a bit typically require a greater listening distance than a physically small speaker or speaker that uses just a few drivers. On top of this, the greater listening distance also tends to highlight problems that may be present in the speaker / room interface. While we can theorize on why this might be so, i was wondering if anybody else has run into this situation and what their experience / results were. Any / All comments appreciated and welcome. Sean
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sean

Showing 1 response by subaruguru

My room is 14x18x8, with a 5' doorway behind my chair on the back wall leading into a smaller room.
I sit in a 7.5' triangle, 8-9' out from the front wall
(grand piano behind the speaker plane), and can assure you that I have an incredibly DEEP soundstage that also is wider than the speaker spread. Sidewall reflections are tamed by
stuffed sofa and chair against sidewall reflection points,m sometimes with a throw-pillow propped on top. Flipping the piano's music desk downward significantly eliminates imaging vagueness. This nearfield arrangement works superbly to eliminate room-induced problems, but only with speakers that cohere nicely in the nearfield. I was VERY unhappy with the N803 in this regard...surprisingly incoherent! I blew all my $$ on Parsifal Encores. Their superb midrange is crossed extremely (150/5500hz), so lobing issues are minimized. The (front-firing-arranged) woofers are quick and potent enough to be flat in-room to 30Hz! Toe-in to reduce sidewall splatter and widen sweet-spot a bit results in a little 6-8k heat, so many CDs sound too edgy, but I live with it.
Other speakers demoed included Aeriel 8 (way too bass-heavy), Aeriel 7b (not bad), Thiel 2.3 (too lean), Fidelio (rear-firing woofer anemic when way out from front wall), and Revel F30 (SUPERB midrange, esp for the $, but poor WAF in New England Arts & Crafts decor, and lumpier bass).
To repeat: although I sit only about 6 ft from the speaker plane, I "see" images routinely way back to the front wall
(16'), and sometimes outside into the front yard bushes!
It's clear that near-field listening ENABLES, not PRECLUDES
huge soundstage depth, while minimizing room reflection problems and POSSIBLY lumpy bass nodes. But ya gotta find speakers that cohere in a short distance. Good Luck.
Ernie