Interesting topic. I have just acquired some DSP 5200's and am waiting for a centre 5200vc so at the moment I am reduced to listening in stereo. Prior to this arrangement I had a complete Mythos speaker system: 1's front, 2's rear and 3 centre. The front 3 were arranged more or less in line with about 2 metres separating the fronts and the centre tweeter pretty well in the same plane as the 1's fronts. Bass was augmented by a velodyne DD12 sub. Width setting for Trifield was 1.2 and depth -0.5,and sub crossover set at 73.

Trifield was excellent with superb soundstaging and imaging so that was my chosen listening parameter.Stereo sounded week and weedy by comparison.

Currently I am using the 5200's placed about 3.5 metres apart with sub crossover set at 60hz. I have to say that the imaging emanating from this is fairly close to that of Trifield previously and I have not yet set up room correction or tweeked the sub.

So I await the imminent arrival of my new centre so as to obtain a true comparison but have to say that if Trifield wasn't available I could get by with stereo

Rod

818v3, QNAP HS-453DX, Roon, 7200SE, ARCAM AVR380, REL B2, Panasonic BD 80, LG OLED, SBox Transporter, iPad, F80. Shunyata Delta NR power cables.