Building crossovers


I have a pair of Magnepan .7 and would like to upgrade the crossovers. Does anybody know where I can have this done. Just build the crossovers I will install.

arya

I built new crossovers for my speakers a couple of weeks ago. I used hookup wire from DH Labs. They have a nice variety. I used 18 gauge on the crossover components and 14 gauge to the new binding posts. I got the amount of Cardas eutectic solder I needed from Ebay. I'm very happy with the results. 

3 caps and a resistor shouldn't be too hard to make. It wasn't easy but worth the effort. And a nice sense of accomplishment. There are YouTube videos you can reference. 

Marchand Electronics can probably help

https://www.marchandelec.com/oem.html

You might be tempted to get one of their tube electronic crossover that can potentially upgrade pretty-much any speaker. The beauty is that it's fully adjustable and you can set-up any allocations to your taste. These guys can also recommend an array of useful tools to measure all necessary settings.

 

Give Danny Richie at GR Research a call or email. He had had at least one Magnepan model sent to him for evaluation, and he posted a YouTube video in which he discusses and demonstrates what he discovered. As he regularly does with loudspeakers sent to him by customers, he designed a new crossover for that Maggie.

 

Ah, here it is:

https://youtu.be/_bpDP0jxj4k?si=yZDkiel-87wgTzEY

 

@arya -

      Don't be dismayed, should your new parts sound less than ideal, upon first listen.

      The better the dielectrics used in construction, the longer the capacitors will take to sound their best.

                                                              ie:

https://gr-research.com/capacitors/#:~:text=Budget%20polycaps%20will%20typically%20experience,consistent%2C%20but%20fairly%20gradual%20improvements.

        Also: the better caps will (usually) have their outer foil lead marked, to help with optimum orientation, in specific applications.

                                                               ie:

                  https://audience-av.com/oem-diy-parts/a_applications/