Correct,replace the U jumpers and 1ohm resistors(which I have on now)on the tweets,as I bought the 3.7's(6months old),Didn't have a second set of U jumpers. read some reviews on the Empirical jumpers and they seem real promising,some prefer them over the Cardas jumpers.
Price is right and if they open up the 7's more then were good.
I must say what the maggies do for bottom end(kick drum)is just like being in a sound booth with a world class engineer,superb sound,
let alone the midrange.To bad my room wasn't a lot bigger,they still sound excellent

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