op you are looking at two different price ranges the Legacy’s focus are much less expensive 12400 then the ps audio loudspeakers 20k.
if you are looking at a flagship loudspeaker look at a legacy aeris 25k
the aeris offers features that few loudspeakers can match the aeris comes with a separate electronic crossover,dac, preamp,and room correction processor and the Aeris has built.in bass amplification and only requires an amplifier for the high and midrange drivers.
dave and Troy
audio Intellect NJ
Legacy dealer