Well, the 6c are moreso multimedia speakers rather than speakers striving for strict accuracy. I'd safely wager, if measured, the Jbl' have the flatter response. They're also likely to get louder more cleanly. The Jbl' are bi-amped and one speaker puts out more power than the entire solo set. From a construction/electronic perspective, the JBL' are likely to blow the Solo' out of the water (IMHO). This pertains to the price difference.

Does that mean they're better? Depends on you. Stick with the ones you prefer. Surprisingly, I found the frequency response measurements if you care.

Solo 6c in a controlled review environment:



JBL' in an average (non-treated) environment:



This is only a small part though. I must say, for the segment they're pigeon hold into, the Solo' don't measure that bad in a controlled environment. I'd imagine they'd make excellent speakers for their intended purpose.