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Old 8th August 2007, 10:58 AM   #1
tumler is offline tumler  Australia
diyAudio Member
Join Date: Aug 2006
Default Pre-amplifier Project Help

Hey everyone,

I have searched through a couple sites and on these forums but I haven't found exactly what I'm looking for.

I have been searching for a 2 channel pre-amplifier project/schematic which has atleast 1 balanced input, atleast 1 unbalanced input and a volume control for each channel, unbalanced output.

The amp its going to be used with has a sensitivity of 1.75v with 200w in 8ohms.

If anyone knows of a suitable pre-amp, please reply.

Thanks alot.
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Old 8th August 2007, 11:44 AM   #2
tumler is offline tumler  Australia
diyAudio Member
Join Date: Aug 2006
Sorry also forget to mention
1 balanced microphone input aswell.
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Old 8th August 2007, 10:15 PM   #3
amc184 is offline amc184  New Zealand
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Join Date: May 2007
Location: Christchurch
Hi tumler,
You're probably not going to find a project with all those requirements. You really should look for each requirement separately. You want:
- balanced to unbalanced converter
- source selector (either a relay board, or more simply, a rotary switch)
- a two channel preamp
- volume control pots

All of these will be easy to find on their own. Fellow aussie Rodd Elliot has a great site for some of this,
Search and you will find the rest.

Good luck.
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