Hi,

Keep in mind that YPAO, Audyssey and other similar auto-setup programs can be very error-prone with phase calculations, especially with bipole, dipole or multi-directional surrounds like Axiom's QS8s and QS4s.

My best advice is to carefully wire your mains and surrounds noting the polarity of each cable and connection and not rely on the auto-setup schemes when it comes to phase determination.

Regards,
Alan

Alan Lofft,
Axiom Resident Expert (Retired)