looking 4 a good preamp

prorms · 12th July 2006, 04:17 PM

does any one know a good preamp schematic

jrdmedford · 12th July 2006, 09:21 PM

I recently got quite abit of mileage out of modifying a DJ preamp.
Check out the Gemini PA-7000. For $99 you get nice sheet
metal work, connectors, and knobs. Simply beefing up the PSU
and swapping in better op-amps is an enormous improvement.

Contact me if you want details..

-- Jim

latala · 13th July 2006, 06:20 PM

Please be more specific ! What do you want the preamp to do.
Is it for phono CD tape or mic?
What are you using it with and what is the final application /use
There are all kinds of preamp
regards Trev

mantisory · 13th July 2006, 06:23 PM

having built the bugle i'd say it's a pretty good phono stage - very detailed and smooth sound. Couple that with a good volume control (which you can use as a passive pre for line inputs) and a decent input switch and you have a great pre-amp IMHO.
Mantisory

latala · 13th July 2006, 06:37 PM

I have built a preamp similar to the bugie about twenty years ago and i would concurr that it will sound good ! As the Opamps are very lightly loaded !
Two stage passive eq I can remember when that was a new idea
As it seams that many of the earlier designers did not realise that the early preamp attempts could not even drive there own feedback networks never mind an external load as well!
but as i have said earlier we need to know your requirements
regards Trev

12th July 2006, 04:17 PM	#1
prorms diyAudio Member Join Date: Nov 2006	looking 4 a good preamp does any one know a good preamp schematic

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12th July 2006, 09:21 PM	#2
jrdmedford diyAudio Member Join Date: Mar 2004 Location: Medford, MA	I recently got quite abit of mileage out of modifying a DJ preamp. Check out the Gemini PA-7000. For $99 you get nice sheet metal work, connectors, and knobs. Simply beefing up the PSU and swapping in better op-amps is an enormous improvement. Contact me if you want details.. -- Jim

13th July 2006, 06:20 PM	#3
latala diyAudio Member Join Date: Feb 2006 Location: staffordshire	Please be more specific ! What do you want the preamp to do. Is it for phono CD tape or mic? What are you using it with and what is the final application /use There are all kinds of preamp regards Trev

13th July 2006, 06:23 PM	#4
mantisory diyAudio Member Join Date: May 2002 Location: toronto	having built the bugle i'd say it's a pretty good phono stage - very detailed and smooth sound. Couple that with a good volume control (which you can use as a passive pre for line inputs) and a decent input switch and you have a great pre-amp IMHO. Mantisory

13th July 2006, 06:37 PM	#5
latala diyAudio Member Join Date: Feb 2006 Location: staffordshire	I have built a preamp similar to the bugie about twenty years ago and i would concurr that it will sound good ! As the Opamps are very lightly loaded ! Two stage passive eq I can remember when that was a new idea As it seams that many of the earlier designers did not realise that the early preamp attempts could not even drive there own feedback networks never mind an external load as well! but as i have said earlier we need to know your requirements regards Trev

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