I'm also a fan of Trifield - although for some material I prefer direct.

With my setup - Revel Ultimas - I've settled on width 1.2 & depth 1.0. I found depth of 0.5 was OK for jazz, rock etc. but for classical material increasing to 1.0 seemed to give the right image perspective -perhaps because I'm visualizing a semi-circle of performers..

On the lack of info from Meridian re the various parameters: Has anyone asked them for more details? & if they have, what's been the response?

Paul.