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I'd LOVE to get a copy of the schematic for my JBL Century L100 Crossover along with the value of the capacitor for the tweeter. The output from the tweeter seems low. Connecting OTHER tweeters in place of the original also seem low. I'd like to make sure I have a good capacitor. My crossover is the one that uses a cardboard cylinder that is potted with both chokes / coils in the one potted enclosure. If anyone can assist me with the value or schematic I'd sure appreciate it. Thanks!
You have the L100 Century with an Le-20 tweeter. Different schematic You have a series 7.5 ohm resistors right before the pots and 12Db networks so you should have 2 coils one 1.0mh for the midrange and a .3mh on the tweeter. The caps are 4.0uf on the mid and 1.5uf on the tweeter. Network is an LX12-10
The entire crossover consists of two caps and the L-pads, that's it.
The cap for the midrange is 8µF, the cap for the tweeter is 3µF.
Replace with polypropylene. The L-pads are 15W, they go bad too. Buy them from Madisound.
I tested the capacitor in the unit now and it measures 1.66 Mfd. It is a Non Polarized capacitor. The number on the capacitor is 10406. It is the original part.
Here is a photo of the particular crossover that my JBL L100 Century speakers utilize. There ARE two chokes as marked, one capacitor and two pots. The two resistors are 7.5 ohms at 10 watts. I just need to know the VALUE of the N.P. Capacitor for sure. Can anyone assist me?
The readings of the chokes / coils naturally were with one lead completely disconnected. I don't have an instrument that measures the inductance of the chokes. Only a DC Ohm Meter / Fluke was used. Len
The schematic I listed covers the first four versions of the L100, you will need to contact JBL for your version.
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