I a/b tested my monitor 7s against my other speakers and found the tweeters sound dull compared to everything else. I can't help but notice it now and although I'm not in a place to upgrade, I've read that replacing the capacitors can be a quick fix. I think they're 20-25 years old, but couldn't find an exact date. I looked at the crossover and saw each speaker had two capacitors, 6.8uf 100v and 22mf 100vdc.(could be 22mfd, but it was hard to see)
I could easily find replacements for the 6.8uf, but I'm confused by the 22mf. Is this the same as a 22uf 100v capacitor?
I could easily find replacements for the 6.8uf, but I'm confused by the 22mf. Is this the same as a 22uf 100v capacitor?
Looking at the size, yes. But the 'BP' mark indicates that it is a bipolar cap, not a normal 22µF. Can't see the 6.8µF but it might also be one.
Hugo
Here is the other one. I'll pull it out again if needed, but the mounts are cracking off when I do so I'm trying to be gentle.
Would this be suitable for the 6.8uf? https://www.parts-express.com/6.8uF-100V-Non-Polarized-Capacitor-027-336
and this for the 22mf? https://www.parts-express.com/22uF-100V-Non-Polarized-Capacitor-027-348
Would this be suitable for the 6.8uf? https://www.parts-express.com/6.8uF-100V-Non-Polarized-Capacitor-027-336
and this for the 22mf? https://www.parts-express.com/22uF-100V-Non-Polarized-Capacitor-027-348
This is all I can see. So does that mean the 22uf I linked above is correct but I need a different cap for the 6.8? Thanks for your help so far. I really appreciate it!
You would be fine using those caps for each of them. Bi-polar/non-polar caps are usable in place of polarized caps. Fitting them on the board might be a little challenging since the ones you linked have the wire coming out each end rather than both in one end, but it should be doable.
With pleasure.
You can replace both with bipolars. The one from Parts Express is already perfect. I'm sure they'll have a 22µF as well.
Hugo
You can replace both with bipolars. The one from Parts Express is already perfect. I'm sure they'll have a 22µF as well.
Hugo
Fabulous. I should be able to bend the wires around and squeeze them in.
I hope this brings my speakers back to life, but if not I'm only out a few bucks! Thanks again for the help.
I hope this brings my speakers back to life, but if not I'm only out a few bucks! Thanks again for the help.
I managed to replace all the capacitors in the towers and center channel. Oh my... Everything sounds sparkly, crisp, and full now. I can't believe it took me so long to figure this out. I found a manufacture date of 1997 inside one of the cabinets, even older than I thought.
The terminal cracked a bunch so I had to use some scrap washers and a hot glue gun to get it tight and sealed again.
Here are some pics as virtual payment for the help. Thanks!
The terminal cracked a bunch so I had to use some scrap washers and a hot glue gun to get it tight and sealed again.
Here are some pics as virtual payment for the help. Thanks!