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
Jeffreybehr, have you tried Clarity's MR caps? The rest of Clarity's lines are mediocre in comparison. And as much as I like Sonic Caps, there is absolutely no comparison between Sonic Cap Gen I's and MR's.

Bryon, floating caps is fine as long as the leads are protected with shrink wrap, etc... The leads on MR's are generally pretty long.
More capacitor tests than you'd have thought possible.....
http://www.humblehomemadehifi.com/Cap.html

conclusion? Try for yourself.

Eld is correct. L6 is a roadblock inductor.
Byron, the approximate voltage-rating minimum for x-over caps is about FIFTY. 250VDC caps are used by manufacturers because they're available. 100s and 200s will work perfectly.

One can always use higher-power-rated resistors to replace lower-rated ones.

In paralleling caps, one uses the SoniCap Gen.1 for most of the value and the RTX or Platinum as the 'filler'. The higher proportion of higher-quality cap, the better-overall the sound is. And remember, ending up within c. 5% of the rated values is JUST FINE.

You're making this project WAY too difficult. :-)
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Thanks Jeffrey. Not trying to make things difficult. Trying not to make a mistake I will regret. To a pro, a rookie's caution may seem silly. But we are all rookies at one time or another.

Speaking of not making a mistake...

As Magfan pointed out, it's going to be difficult to mount the new caps to the crossover board, as they are MUCH bigger than the stock caps. Can anyone make a suggestion as to how the new caps can be secured to the board, which is mounted vertically inside the speaker cabinet. No, I can't go external.

BTW, I did discover that ClarityCaps MR will be available in March from Parts Connexion in the value I need - 3.6uF. I'm now leaning toward a combination of ClarityCap MR and Mundorf (not sure which one). Both have their proponents, so I may just split the difference.

Bryon