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Old 18th June 2006, 02:28 PM   #1
nbcd is offline nbcd  Romania
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hy all,
can someone give me a good schematic of a good audio preamplifier that has a low THD?.
i use this amplifier
http://sound.westhost.com/project03.htm#pwr_update
but my audogy sound blaster cannot blast this amplifier with enough power. hardly can i hear something whem soundcard is set to maximum cvolume.

i want to buil an preamplifier that has tone and volume adjustments. thank you
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Old 19th June 2006, 09:24 AM   #2
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Have you tried using another source to input to this amplifier?Your soundblaster sould be able to power headphones to a decent level.I use an amplifier very close to that one of my own design that works very well with my sb card and it pushes it to clipping.
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Old 20th June 2006, 07:12 AM   #3
nbcd is offline nbcd  Romania
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yes. i user a few years ago a sound card that had a better amplification, but i don't have it anymore. that is why i want to buil an preamplifier. does anyone has any schematic?
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Old 20th June 2006, 09:15 AM   #4
bawang is offline bawang  Malaysia
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Try one of the many preamps that Rod has on the same site (ESP), ranging from minimalist (the DoZ preamp) to full featured, all with PCBs for sale.

I am using the DoZ, simple and does the job well.
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Old 21st June 2006, 02:53 AM   #5
Leolabs is offline Leolabs  Malaysia
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or readjust the gain of the power amp.
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