3 way bridge or bi amp?

[614Emil]

Hi!
I just got a set of kx3's that runs on a jbl px300.4

125 rms 4 ohm x4
165 rms 2 ohm x4
Or
360 rms 4 ohm x2

Right now the kx3's are on front 2ch and focal ps165 on rear ch.

I also got another jbl px300.4 with defect front channels.
I was thinking of running the kx3's on only 1 amp but should i bridge and get 2 channels? That way i dont have to match adjust gain before the microphone taa.
Or
Run midrange and tweeter on front ch and midbass on rear ch?

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