I need info to have JM Labs Daline 6.1 repaired.

I'm assuming both 5" drivers are exactly the same. I'm also assuming both should sound the same when music is playing. If this is true, I have one dull driver that needs to be sent out or replaced. Where or who do I contact?
I also need to know the sensitivity of both the JM Daline 6.1's and the 3.1's (I have too may speakers. You'll be seeing the nicer ones for sale. These are just 'right' here). I can't find a manual or specifications online on these.
1. Please make sure that driver you suspect isn't passive resonator.
2. Replacing a driver is similar to replacing an automobile wheel or simpler. If you can't do even-even that, than deliver your speakers to the nearest pro-audio shop and ask them to change the driver(that you've already ordered and received). No need to send it far away and worry about their road trip safety. Even unknown Mr. Johnny Tech will just be fine.
Make sure that you don't have a 2 1/2 way or 3 1/2 way design, in which two same size drivers are covering slightly different frequency ranges.
I also vote for Bill at Millersound; a phone call is well worth your time.
I've been away from the web. (Mom had an operation and I've been there. She has no web access and her area has no cell access). I want to thank all of you for the responses. I'll be following up later today.