Updating Mini Monitor crossover

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the crossover in the MM have 2 resisters 2.7ohms & 1.0 ohms. Looking at schematics of other Monitor series(5jr, 5B, & 7's) they show replacing the 2.7 with a 2.0 ohms. Should I do that mod. here or keep the 2.7 resister? Also what does the change from 2.7 to 2.0 do for the speaker? Thanks for your help. MP

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