Now I think I understand. I'll give it a go when I get the Meridian HD621. If I get stuck I will return as it would be a shame not to configure it with the best possible configuration.

When listening to Trifield from my G98, I can set the delay on the surround speakers. Is there a way to set it, other than listening to what sound right to the ears?

Cheers Jack

G68ADV, HD621, G98DH, 511, DSP5000MKII, DSP5200HC, DSP3100s, Two Infinity Cascade Fiffteen subs, PS3 (600GB), PS4 (500GB) Oppo BDP-93, Apple TV 3, DUNE HD Base 3D, Pioneer LX 50, Acoustic Signature Ecco, Primare R20, Monster Power HTS2600 and a Densen B410 CD Player.