lofi-ear
08-10-2010, 09:17 AM
Good summer to everyone!
I was listening to Vijay Iyer's excellent CD "Historicity" and observed that piano was sounding somewhat "hard" and straining to the ear. First I though it was because of the room, but later decided to play some sinetones and instantly noticed something's wrong. The midrange driver was audibly distorting with an 900Hz sine wave.
The 804ti driver of my TI10K speakers takes care of a very narrow frequency range of 1200Hz-3500Hz, taking off some burder from the tweeter; it has a 40mm voice coil and a very high mechanical excursion considering its frequency range, so I find it extremely odd that this driver could become faulty just like that. The driver has never received any external impacts and I've never pushed these speakers much over 100 decibels.
This very same phenomenon has happened to me before with a tweeter that was distorting. Removing the tweeter diaphragm and reassembling it resolved the problem. Now all I could do is rotate the driver 180 degrees and hope it's just the voice coil rubbing the magnet and time will fix the problem.
If not, I've contacted JBL service and they say they've got a replacement driver for the TI6K for 130 euros. I assume the drivers are identical in both models?
I've been very satistifed with these speakers but am afraid what time will do to them in the future. :crying:
I was listening to Vijay Iyer's excellent CD "Historicity" and observed that piano was sounding somewhat "hard" and straining to the ear. First I though it was because of the room, but later decided to play some sinetones and instantly noticed something's wrong. The midrange driver was audibly distorting with an 900Hz sine wave.
The 804ti driver of my TI10K speakers takes care of a very narrow frequency range of 1200Hz-3500Hz, taking off some burder from the tweeter; it has a 40mm voice coil and a very high mechanical excursion considering its frequency range, so I find it extremely odd that this driver could become faulty just like that. The driver has never received any external impacts and I've never pushed these speakers much over 100 decibels.
This very same phenomenon has happened to me before with a tweeter that was distorting. Removing the tweeter diaphragm and reassembling it resolved the problem. Now all I could do is rotate the driver 180 degrees and hope it's just the voice coil rubbing the magnet and time will fix the problem.
If not, I've contacted JBL service and they say they've got a replacement driver for the TI6K for 130 euros. I assume the drivers are identical in both models?
I've been very satistifed with these speakers but am afraid what time will do to them in the future. :crying: