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MOX active crossover buy

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BobEllis

BobEllis

Member
Joined 2003
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.
 
BobEllis

BobEllis

Member
Joined 2003
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
 
BobEllis

BobEllis

Member
Joined 2003
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.
 
JensRasmussen

JensRasmussen

Member
Joined 2002
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
 
H

harryeng

Member
Joined 2004
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! :D

Greetings, Harry
 
BobEllis

BobEllis

Member
Joined 2003
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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  • xo calcs based on jens rasmussen manuals.zip
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