Heads up you cannot reliably A/B test in a room unless the speakers are in the same location.
Its an annoying trait of small room acoustics.
I remember auditioning Linn products in the late 1980's or early 1990's and their mentality was that you can only have the speakers that are being auditioned in the listening room - no other speakers.
It made it fun when we wanted to hear the 2 largest models they made...essentially the size of full sized refrigerators called the Isobariks or something like that!