i have had these jbl prx 618s subs for about 2 yrs now and have had both units go totally out....first happened within 1 year and the second just happened last week. nothing powers up from the built in crown amp. fuse is good and power, but no sound or blue lights. will still pass audio to top cabs.
does anybody know of any issue or have a wire diagram for the amps. running out of ideas.
thanks
Just had three out of four PRX 625 cabinets do the same to me. This was after less than 10 hours use on each cabinet. There's a thread on choosing powered cabinets for a heavy metal band around here that has lots of interesting information about the Crown amplifier modules. I'd check that out before doing anything.
And yes, Harmon has a really bad track record of getting things back to me. They took a year (and a "Mandy mood" from my wife) to repair an old DBX DriveRack PA. Over a decade ago, I never got a CD player back from Harmon Kardon. I was quoted 6-8 weeks on the PRX 625 cabinets.
When I was in Orange County Speaker turning in the cabinets, I mention to the salesguy "shoulda got the KWs." Another customer nodded and related his problems with the Crown amps blowing up. Never had a problem with XTi and ITech amps (did have an XLS thermal off on me once). But things don't look good for the amps they put in the PRX line.
I was going to buy four 618XLF and four 615 cabinets to round out my "B" rig. I'm seriously thinking about switching over to the KW series mid-stream because of my experiences. Hate the idea, because I really like the weight of the PRX line, but reliability *has* to come first.
Cheers,
Randy Hyde