3 or 4 way active crossover schematics are needed! [Archive]

northwood

11-12-2006, 02:53 PM

Want to build a hifi active crossover:)

materials and suggestions r needed,thanks

loach71

11-12-2006, 03:41 PM

Want to build a hifi active crossover:)

materials and suggestions r needed,thanks

A very good xover is from a UK magazine (forgot name) - but the title is:

"A Versatile Active Crossover" by Ben Duncan. It was published in the late 1970's or early 1980s. The xover uses NE 5543A lo-noise op-amps. It has the pcb layouts and schematics and tables for the R and C values. It it Linkwitz Riley 24dB / octave. I built a few of these for friends and they work quite well.

You could also look at the Marchand electronics kits.

northwood

11-12-2006, 04:09 PM

thanks my pal
finishing my subwoofer controller,wondering building a high class active crossover to take place of the pro one.[a new pass aleph1.2 is under building as well]
waiting for something important that gonna happen,so have some spare time now,need to do something to kill my time:blink:
collecting parts,making pcbs and jointing electronics r the best way for me.

CONVERGENCE

11-12-2006, 04:10 PM

Building it will probably cost you more than buying one.Brhringer has a 3 way 24 DB xo for less than 200$

http://www.partsexpress.com/pe/pshowdetl.cfm?Partnumber=248-668

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northwood

11-12-2006, 05:05 PM

Building it will probably cost you more than buying one.Brhringer has a 3 way 24 DB xo for less than 200$

http://www.partsexpress.com/pe/pshowdetl.cfm?Partnumber=248-668

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You r right my friend.If I wanna buy,this one is what I want,however,no place to find it here in China mainland.Price is 10 gand in HK.

yggdrasil

11-12-2006, 05:34 PM

If you want one based on ic opamps: http://www.diyaudio.com/forums/showthread.php?s=&threadid=74420

If you want one based on discrete opamps: http://www.diyaudio.com/forums/showthread.php?s=&threadid=27651&highlight=moamps+crossover

northwood

11-12-2006, 06:18 PM

If you want one based on ic opamps: http://www.diyaudio.com/forums/showthread.php?s=&threadid=74420

If you want one based on discrete opamps: http://www.diyaudio.com/forums/showthread.php?s=&threadid=27651&highlight=moamps+crossover
Thank you so much my moderator!!!!!!!!!!!:applaud:

northwood

11-15-2006, 11:17 AM

accuphase crossover,three ways

northwood

11-15-2006, 11:30 AM

horn and driver

northwood

11-15-2006, 11:33 AM

speaker

northwood

11-15-2006, 11:39 AM

krell ksa100 drive bass

hjames

11-15-2006, 11:49 AM

horn and driver

VERY fine looking horns ...!

And the cabinets in the picture layout with the Pioneer woofer (http://audioheritage.org/vbulletin/showpost.php?p=134120&postcount=10)
- why, they have the same recessed front baffleboard as the JBL 4505WX type cabinet used in the 4320/4325 type speaker - verrry intriguing ...

loach71

11-15-2006, 04:42 PM

A very good xover is from a UK magazine (forgot name) - but the title is:

"A Versatile Active Crossover" by Ben Duncan. It was published in the late 1970's or early 1980s. The xover uses NE 5543A lo-noise op-amps. It has the pcb layouts and schematics and tables for the R and C values. It it Linkwitz Riley 24dB / octave. I built a few of these for friends and they work quite well.

You could also look at the Marchand electronics kits.

A 4 part article "A versatile Active Crossover" by Ben Duncan. HFN&RR Feb - May 1981.