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MOX active crossover buy

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#201
thanks Chipco - I asked about moxlites but got no reply. 🙁

I've been an active XO convert for a while, but so far it has been point to point on prototype boards. Changing values on PTP makes things interesting, and unreliable. I have a MOXLite version of my XO almost complete, but other things have used my free time lately.
 
#210
Jens,

Since you seem to have nothing better to do on a Friday night :clown: , maybe you could add a notch/boost filter like in the MOXLite. (or another small board with a pair of notches) I'm currently heading down the Cauer-Elliptic path towards very low tweeter XO frequencies.

Thanks again for your many contributions to this forum.

Bob
 
#212
I'll clean it up and include the notch filter section that uses Jens' formulas in his Active Filter One manual. Really all I did was plug the formulas into a cell, referencing the various inputs in cells above.

It will be a couple days though. I am heading out for a DIY project involving plumbing, painting, electrical work and maybe cross country skiing.
 
#213
BobEllis said:
Jens,

Since you seem to have nothing better to do on a Friday night :clown: , maybe you could add a notch/boost filter like in the MOXLite. (or another small board with a pair of notches) I'm currently heading down the Cauer-Elliptic path towards very low tweeter XO frequencies.

Bob
Click to expand...

2 EQ sections.... hmmm let me take a look at it I might have to go for a dual layer... would that be ok?

How about a powersupply? I seem to have room for a pair of LM7815/7915....let me know

\Jens
 
#215
When you guys are going to produce boards, I would be interested....

I have tried active filtering with a Deqx PDC2.6 and it worked great. I sold it to build a complete Pass system, but I just know I want to go active again, with Aleph 5 for high, and Aleph X for low.

I just love the future! 😀

Greetings, Harry
 
#220
AndrewT - here is the spreadsheet that you requested. I've included notch and boost EQ calcs, all pass and baffle step as well.

Hope it helps - note that it won't do much good if you have different frequencies set in your MOX, and you'll need to calculate/measure the actual MOX F3 to get a direct transfer.

Bob
 

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