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I'd be glad to offer some back story and application support. I worked along side both Jeff Szymanski and Gavin Haverstick at Auralex when the SpaceCoupler was brought forth by Russ Berger. Original application was to bring to the "common" room the possibility of a loosely coupled space as defined by Russ in his AES white paper (approx 1995...forget exact date). The concept is that a performance space can be very desirable for recording when it has a tightly controlled early reflection field (lower walls are highly absorptive) and then a longer (more vibrant) secondary decay slope (architecturally acheived by the upper region have different footprint and hard/diffusive surfaces). The SpaceCoupler grids, in this application, could simply be located in drop tile ceiling grids to create an aperture...variations allow brighter or more lush/warm responses.
As the product was put through some applications, Jeff Szymanski put it to test in a basement studio of well-known audio reviewer: coupler>drop tile laid on top>thick batt insulation between joists...result: subjectively cleaned up sub 50 Hz issues to both ears. Also, imaging and midrange detail improved.
I have used this product in many applications: above mix position, lateral early reflections...tracking rooms. I've noted that many Russ Bergers' latest rooms have the Couplers in use above mix as well. It is a product that is fully reliant on the adjoining surfaces be they hard or soft for the ultimate result.
Sometimes it is the deal-maker, sometimes part of comprehensive solution, but always...they look cool.
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