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Author
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Topic: Centaur Minor Crossover Schematic
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Edpadden
Full Member
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posted January 21, 2004 01:55 PM
   
I want to upgraded my Centaur Minor crossovers. Does anyone have a Schematic or values of the components? Thanks
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wsill
Full Member
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posted January 22, 2004 01:43 PM
Yes, I have Schematic. I need a day to get out of my files, and send you group. I'll try to post info tonight.
Bill
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wsill
Full Member
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posted January 22, 2004 06:26 PM
Edpadden/All
I posted the Centaur Minor Crossover circuit in the Apogee Picture site. (see Link to Picture site).
I posted the crossover in the Centaur Folder.
Bill
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rgodin
Full Member
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posted January 23, 2004 03:23 PM
Edpadden,How did you manage to get the crossovers out of the Minor? Mine were attached with the stongest adhesive on the planet and hidden out of sight. I tried everything short of breaking them apart to get them out and finally gave up. -Rick
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wsill
Full Member
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posted January 23, 2004 05:03 PM
Yes, you have to slowly pry the adhesive, the circuit board comes off. I used a long flat bladed "crowbar". (Actually got it from Apogee, to remove the Major Grills). They do come out. I had the crossovers in seperate boxes behind the Minor's and bi-wired. Helped alot. By-pass the switch of course, I settled on the "normal setting". I also installed a Dynaudio 6 1/2 woofer, to replace the Viva. Huge gains in clarity, and abilty to go low. In a big room the port modification works well. A small room, say less than 13x18, they are better "acoustic suspension", ie stock. Now I restored them back to stock. I am using Major's & Diva's. (Graz I still need Diva ribbons, be contacting shortly).
Bill
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Edpadden
Full Member
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posted January 23, 2004 09:33 PM
I plan to use the existing wiring to the drivers and basicly cut out the old parts and install new ones. I will install 2 sets of binding posts to bi-wire and use new wire for that. I will also remove the bass switch and create a new plate for the binding posts. I should have this task complete in about a month. I will post pictures at that time. Thanks everyone for your help and interest
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centaurus3200
Full Member
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posted January 25, 2004 03:20 PM
what is the model number on the dynaudio driver you are using?i tried some morels a while back, but not quite the right vas rating. i couldn't find the right specs on anything other than the stock vifa. do tell ;-) see ya,
Robby
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wsill
Full Member
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posted January 25, 2004 06:13 PM
Robby,
The original Vifa Driver in my Minors was P17WG-00 6 Ohm. (I don't think you find anymore of these at 6 ohm) I replaced that Driver with the Dynaudio Esotec 17W LQ 8 Ohm. The cutout around the flange had to be enlarged by about 1/16" of inch. So almost a direct "pop in". The electrical characteristics of the Dynaudio woofer are: Fs 40 Hz, VAS 22 liter, Max Excursion 17mm, Le(inductance).19 mh, Re (dc resistance) 4.9 Ohm. Power Handling 1000 watts, The specs on the original 6 Ohm Vifa are very close in the electrial areas. Though the Vas on the Vifa is much higher. The power handling on the Vifa is only 80 watts. The size of the Minor box, approx 10 liters, the Vifa woofer would spec out to sound sorta of boomy. It does, after you hear the Dynaudio. The Dynaudio is much tighter sound, greater clarity(actually quite significant), and much, much faster. The bass response seems deeper. Might be cause of the significantly higher resolution. A better blend to the Minors ribbon. I have the Majors as well, the Majors sound too slow compared to the Minors with the Dynaudio woofer. About the same when the minors have the Vifa woofer, though the Majors go much deeper, due to the 10" driver in the Major. The esotec is also a hard driver to find now, due to Dynaudio removing thier drivers for consumer consumption. But any of the 17W-75 would sound reasonable, referring to the Dynaudio specs. I think the Esotec version is an extreamely great match to the Minor's ribbon. So I didn't want this to turn info a Speaker Builders corner, but it might have now.
Bill[This message has been edited by wsill (edited January 25, 2004).]
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Graz
Full Member
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posted January 26, 2004 02:38 AM
Just because they shut the factory doors - it dosen't mean we can't continue to develop the products!!Take care - Graz
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centaurus3200
Full Member
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posted January 26, 2004 09:04 AM
i'll have to give the dynaudios a whirl.the morels i had (i think morel is dynaudio?) would bottom out. not enough air pushing back on the cone. see ya,
Robby
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