Blog Forums DIY Speakers and Subwoofers Which Crossover is right for this application Reply To: RE: Which Crossover is right for this application

#15064
AJC
Participant

@trevor – building your own crossover has an additional advantage: it allows you to fully craft the crossover to the drivers being used.

Basically, you can create a crossover for a certain frequency, but being able to match the effects for the specific values of the inductors, capacitors, resistors, etc., you can get a flatter result, among other benefits.

Also, you can just solder them in-line, so to speak. (soldering is a necessity if not using a pre-made board; there are plenty of decent, affordable soldering irons out there). A board is nice so it doesn’t move around in the case, but a hot glue gun also makes things stick to the inside of the enclosure (or other adhesives if so inclined). For the board, it doesn’t even have to be a bread board, just get some 1/4″ board that you can mount and strap the components down to it.

For research, get X-sim, then here are some files to toss in. These are expensive speakers that are REALLY flat when you tie them together. So, look up examples for second and fourth order crossovers, butterworth and Linkwitz-Riley, then try to replicate the components into the model, then vary the values until you like the result you see. Then look up actual values available at different stores, then make sure those still work for your crossover.

And there you have it. Good practice on making it. It is always best to dive in, then look up piece by piece where you get stuck, which then will explain similar concepts and what is being done by choosing what you did. Then research parallel and series crossovers. Basically grow your knowledge organically. Once you run into something you cannot figure out, look it up. A body of knowledge is sometimes taken best in small chunks. In school, you don’t read the text book the first week. You go lesson by lesson. Chunk by chunk.

There is a lot to this, but it IS manageable, and you will get there (meant as words of encouragement, not condescension; tone can be missed in text so just being sure).

Then, also show off what you come up with here and ask for people with more experience than I with crossovers to examine it and give suggestions. Models help to develop skills.

When you eventually get to building your own set, nice to haves are the DATS v3 for the TS parameters (more accurate for your specific driver, and those values will better design the box for those specific drivers) and like a UMIK-1 or similar. Together, that is like $200-250, IIRC. But that is worth every cent, especially if you plan to build more in the future. Also, the microphone, aside from making the crossover, can also be used to help set equalization or a DSP in the future, if your hardware grows and can support that.

3091-DataAF-Scan-morel.zip

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