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Speaker crossover mod. Your advice?

I'm considering modding the crossovers of my Focal 1027s. Specifically, I am thinking about replacing the capacitor associated with the tweeter. I have received some helpful advice from another A'gon member who has done a similar mod to his crossovers (on a different model speaker from the same manufacturer).

I would greatly appreciate any suggestions from folks who have experience with this sort of thing. In particular, what sort of improvements can be achieved with this kind of mod? Any thoughts on which caps to use? Any common mistakes I should avoid? Is the whole thing a bad idea?

Thanks for your input.

Bryon
bryoncunningham
bryoncunningham OP
903 posts
 
Louk - The serial number is 10E005493.

Which midrange chassis is built in your BE (my is as stated 6 W 4361)?

By "midrange chassis," do you mean the midrange driver? If so, I'm not sure what its designation is. I looked at the back of the driver and the information was so faint that it was unreadable. Here is a photo of the midrange driver:

midrange driver.

bc
xlouk
6 posts
 
Hi Bryon,

yes, midrange driver. Here is a photo of mine: http://img855.imageshack.us/img855/4416/mid6w4361back1.jpg.
If you like, you may look on the second mid driver, whether the label is there better readable.
I would assume, that your 1027 BE was later produced an may have been improved a bit. On the crossover C1 changed from 3.9uF to 3.6 on your board.

louk
bryoncunningham OP
903 posts
 
The other midrange was too faint to read as well. Judging from your picture of the rear of your driver, I'd say our midrange drivers are the same. So I don't know what to attribute the difference to.

bc
xlouk
6 posts
 
Hi Bryon,

thanks for your help. In the meanwhile I could get in contact with someone of the Focal service. He told me, that the mid drives of the S and BE are the same but the casing box construction and the crossover board differs. The S is softer tuned. The S doesn't have the beryllium tweeter.

louk
kalem
1 posts
 
Hi Bryon, have you got pictures of your finished crossover to share? Thx
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