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Old 31st May 2006, 04:58 PM   #1
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Question preamp with opamp...help

Hi Guys,


I would like to start a new project. I would like to build a preamplifier similar to a GainGard 47labs, I mean I would just to have gain stage. My amplifiers are 100Watts, 100KOhms input, so very easy to drive.

I wonder whether there is some project going on which makes line stage preamp using opamps.

I hope somebody can help,

Cukkurullo
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Old 31st May 2006, 05:23 PM   #2
PMA is offline PMA  Europe
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Hi Pierre,

just put a pot in front of this:

http://www.pha.inecnet.cz/macura/buffer_en.html

Pavel
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Old 31st May 2006, 05:58 PM   #3
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.....mh! I read the pages, it says that short cables shluld be used.. not my case!

Anyway, I also see too many components, I would something like in the fashion of the 47 labs stuffs

Pierre
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Old 31st May 2006, 06:06 PM   #4
poobah is offline poobah  United States
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Nice circuit Pavel!

Transmission lines... I like!

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Old 31st May 2006, 08:25 PM   #5
roger-k is online now roger-k  Norway
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What about one of this:
http://sound.westhost.com/projects-2.htm
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