Crossover layout L250

[JuniorJBL]

Is there a "best practice" for crossover layout?

I have finally got the parts for my l250 to 250Ti biased crossovers
These are going to be external and my thought is to hook them to the cab via speak-on connectors. My other thought is to make them quad amp-able is that a word?

My other wish is to remove the bus bars and use switches but this may prove to be more difficult than meets the eye. I have looked for rotary 3pole 2 layer non-shorting switches but current ratings for these are in the <1 amp range. Also the switch may prove to degragate the sound so just throwing that out there.

Also on the 48 uf caps I was only able to get 50uf this makes a difference of 1uf in midbass section. Will this be a big problem? IIRC there was some kind of "hole" if you will in the origanal L250 midbass section on overall sound. I hope this will not agravate the situation.:dont-know

I am using Daton polypros 5% but after measuring these (staticly) they are all within .01%

Any help with this build will be greatly appreciated!!

[Swerd]

Is there a "best practice" for crossover layout?

For layout of crossover, place inductors so two don't interact with each other. Read this link and follow the general guide in the diagram at the bottom of the page. Resistors and caps can go just about anywhere you can fit them.

Also on the 48 uf caps I was only able to get 50uf this makes a difference of 1uf in midbass section. Will this be a big problem? IIRC there was some kind of "hole" if you will in the origanal L250 midbass section on overall sound. I hope this will not agravate the situation.:dont-know

I don't think using 50 µF instead of 48 µF will be a problem. Usually ±10% variation does not make an audible difference. For 50 µF, anything from 45 to 55 µF is OK.

I am using Daton polypros 5% but after measuring these (staticly) they are all within .01%

Those are good caps. Any that I have used have also been very close to their printed value.

[JuniorJBL]

Thank you Swerd!!

I will post tomorrow a pic of my intended layout.

Edit: That is a great site. Thanks for the link!!

[JuniorJBL]

Well much later than tomorrow here I am again. A pic of the proposed layout. Anything jump out as bad?

[stephane RAME]

The best position

http://audioheritage.org/vbulletin/s...5&postcount=24

To make a network
Stéphane

[JuniorJBL]

I changed it up a bit and put the coils down the outsides, big caps down the center. don't have a pic right now but will later.