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OfflineGadget
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Registered: 11/17/99
Posts: 341
Last seen: 14 years, 8 months
Re: Make your own printed cuircut boards
    #258880 - 05/05/00 09:22 PM (16 years, 6 months ago)

Funny, I Just did this about a month ago. I had built a new center channel speaker using 2 shieled 6 1/2" Poly cones and a Shieled 1" tweet.

I used a 3rd order low pass filter for the mid-bass and a 3rd order High pass for the tweet. When I first built it I just hand wired it, but what a nightmare, so I went to radio shack and picked up the materials to etch my own board, It looked SOO much nicer (even thought no one but me will ever see it :wink: )

Its good to see I'm not the only crazy person here....

/Gadget



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Offlineoneoverzero
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Registered: 01/24/00
Posts: 758
Loc: Cyber Space
Last seen: 14 years, 11 months
Re: Make your own printed cuircut boards
    #258882 - 05/08/00 03:42 AM (16 years, 6 months ago)

Hey Gadget, that's kewl!

Where did you get the design for two third order x-overs? That's some serious frequency pass antentuation!



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OfflineGadget
addict

Registered: 11/17/99
Posts: 341
Last seen: 14 years, 8 months
Re: Make your own printed cuircut boards
    #258883 - 05/08/00 09:54 AM (16 years, 6 months ago)

For the x-overs design I went to: http://kbapps.com its under the enclosure calculators section.

I used Speaker Workshop (free) from http://audua.com to chart driver impediance and phase. Its a NEAT little program! Also the app was really helpfull during x-over design because I could readily see the results in a chart

I haven't done a freq responce yet (well I did a few in room, but the look like crap) I am getting my hands on a laptop so I can take the enclosure outdoors to a huge parking lot and do freq responce without getting all the reflections included.

Here are the impediance charts for the raw drivers.

So fr its been a Very enjoyable project :wink:



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