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Thanks. It looks like I did a mistake and picked up a $15k pair of speakers that have a very aggressive ABL and that was the difference between the BL5 and the BL20s.
I also believe that the latest firmware update had changed the characteristics of the ABL because even the dealer admitted that the MK1 version had a lot of circuit board replacement and power supply failures so that’s my only explanation.
Will call the dealer and see if I can downgrade the firmware and report from there.