I recently inspected/listened to a pair of 4320's that I'm considering buying. I've never heard 4320's or any large JBL monitors for that matter. Pairs I owned are 4311's, L110's, L65's. So I went there ready to be impressed and....I was NOT impressed. They were seriously lacking in bass and quite lacking in detail. I mean 15" drivers should have been much better.
Ok so I'm sure that's not what healthy 4320's should sound like, I should have been blown away right? Now the guy had them set up on the floor was driving them with the biggest, most insane looking Audio research tube amp I have ever seen. So I don't think the issue was with the source, or anything further up the chain. I could only stand a couple feet away from them cause the room was crowded with stuff, so placement wasn't good, but there was something else going on.
Their history: the guy has owned them for four years, hasn't touched them. Interestingly the guy has also owned the 3 way version and admitted that they sounded much better.
Now I am thinking of getting these guys as a project to clean up the cabinets and do the 3 way conversion and I don't mind getting down and dirty and doing some work. So my question: Is the problem most likely something fixable i.e.caps needing replacement. Or could it be something more terminal and this is a bad idea to pick them up as a project? Oh and they won't be going cheap.
Thanks.