custom Crossover building service??


Got a question- does anyone know of anywhere(a business I guess) that I could send one of my speaker's crossovers to, to have better/custom ones made up? Basically, they'd duplicate it with much better components. the stock one is a little chincy thing that is hard to figure out. I can't see the inductor values and the signal path is confusing.
i contacted Athena the manufacturer of the speaker and they will not provide a schematic. if they would i could just build them myself.
thanks
draggcj
thanks for the input people. Got a question though.

As long as I use the SAME VALUES for everything then how could the results be negative? I would just be using better quality components. I don't want them redesigned.

I re-did my Magnepan Xovers with GREAT success. They were easy and Magnepan faxed me a schematic. I sent Athena an email asking for a schematic and so far NO reply.

the stock crossovers look pretty weak. they are about 3 inches square and each contain 2 inductors, 2 caps, and 2 resistors!! Tiniest crossover parts I've ever seen.

I DO like the sound of these speakers, as did Stereophile. I just figured they would sound even better with quality Xovers, just as my Maggies Do.

thanks again!
You might want to try Rick of Selah Audio at [email protected], to whom I'll be sending my speakers for a mod. Hope this helps.
I can't believe we go through this every time someone wants to upgrade their crossovers!

First, moving to better parts can and sometimes, dramatically, upgrade the sound. The danger area is in altering the topology of what has been built by the designer, but even then, I have seen some REALLY highly regarded loudspeakers use nothing but "by the book" values and schemes. Some audiophile loudspeakers are flat out embarrassing in the parts they use.

My one caveat is that in my experience, some of the expensive caps actually produce results that are not for everyone. They can provide a lot more detail and clarity, but at the expense of making the sound cold, bleached, and sometimes even fatiguing. My recommendations for caps are Solen, SCR, NorthCreek, and Wonder DynamiCaps - all of these caps will retain a nice richness in the sound, balanced by a wealth of detail and clarity.

Good resistors almost without question better the treble, often beyond even what a tweeter upgrade will accomplish.

Inductors using larger gauge and better copper do a whole lot. Dynamics and slam are what a lot of people talk about, but from my perspective, the sound just plain opens up. I have ALWAYS heard an improvement with an inductor upgrade, and recommend it highly.

If you are scared, get a dog, but if you feel your crossover is not so great, don't be afraid to make it better.
Upgrade the parts quality do not change the values.Are there any parts values you can determine...resistors are the cheapest and most bang for your buck...Ohmite non-inductive wire wound available from North Creek Music Systems.Tom
Theaudiotweak...I think that in some cases changing the design of the crossover, (break frequencies, slopes) can yield better performance, but you need to know what you are doing, and be prepared to tweek in your new design. The original designer probably didn't get what he really wanted. He did the best he could within a budget.

It happens that I am even now in the midst of replacing the very simple crossover in MG1.6. In addition to using top quality inductor and capacitor I have chosen to change the filter break frequencies very slightly. In a nutshell, I will roll the LF panel off (electrically) at 205 Hz instead of 180Hz, and shift the HF pannel up by 100 Hz. My reasoning is that the speakers were surely designed for full range use, whereas I cross them over to a subwoofer system. Accordingly, I feel that the LF panel can handle slightly higher sounds without problem. Giving my theory a try makes the whole exercise more interesting, and it would be really easy to go back to the original L and C values if appropriate.