Georgehifi- not sure if this helps with impedance & phase angle question,
the L&R speakers in the link below are the Paradigm Persona 3f speakers-
https://www.soundandvision.com/content/paradigm-persona-3f-speaker-system-review-test-bench
the L&R speakers in the link below are the Paradigm Persona 3f speakers-
https://www.soundandvision.com/content/paradigm-persona-3f-speaker-system-review-test-bench