ESP 12db xover help

sagarverma · 12th October 2005, 11:48 AM

hi
i have built the 12db 2 way xover on the site
www.sound.west.com

its working like magic.

but i would like it to double up as a preamp also bec the i/p music is from sony discman whose o/p is too low for my gainclone.

Mr. Elliot told me to add a feedback res. and a res. from -ive i/p to gnd

plz help me ho to do it as i didnt get properly what he meant

any help helpful

thanks in advance

sagarverma · 12th October 2005, 11:50 AM

its www.sound.westhost.com

its 12db/2way linkwitz crossover

mistake regretted

wxn · 13th October 2005, 07:13 AM

What he meant was that you need to wire the first opamp like this:
http://www.sound.westhost.com/p09_fig3.gif
Note the 10k resistors. Gain is k = 1+Rf/Rg (2 in the example)

sagarverma · 13th October 2005, 02:18 PM

thank u wxn.

u have posted all
fm,figure.

i will post the results soon
thanks again

------------------------------
thanks to diyaudio for its existence

sagarverma · 20th October 2005, 03:15 AM

i did try what u said.
gain increased but quality became bad.
so i undid the changes and now using tda1524 as pre.

thanks 4 help

12th October 2005, 11:48 AM	#1
sagarverma diyAudio Member Join Date: Feb 2005 Location: NEW DELHI	ESP 12db xover help hi i have built the 12db 2 way xover on the site www.sound.west.com its working like magic. but i would like it to double up as a preamp also bec the i/p music is from sony discman whose o/p is too low for my gainclone. Mr. Elliot told me to add a feedback res. and a res. from -ive i/p to gnd plz help me ho to do it as i didnt get properly what he meant any help helpful thanks in advance

13th October 2005, 07:13 AM	#3
wxn diyAudio Member Join Date: Sep 2003 Location: Vilnius	What he meant was that you need to wire the first opamp like this: http://www.sound.westhost.com/p09_fig3.gif Note the 10k resistors. Gain is k = 1+Rf/Rg (2 in the example) __________________ Nothing is as simple as it seems

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12th October 2005, 11:50 AM	#2
sagarverma diyAudio Member Join Date: Feb 2005 Location: NEW DELHI	its www.sound.westhost.com its 12db/2way linkwitz crossover mistake regretted

13th October 2005, 02:18 PM	#4
sagarverma diyAudio Member Join Date: Feb 2005 Location: NEW DELHI	thank u wxn. u have posted all fm,figure. i will post the results soon thanks again ------------------------------ thanks to diyaudio for its existence

20th October 2005, 03:15 AM	#5
sagarverma diyAudio Member Join Date: Feb 2005 Location: NEW DELHI	i did try what u said. gain increased but quality became bad. so i undid the changes and now using tda1524 as pre. thanks 4 help

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