Pre-amplifier Project Help

tumler · 8th August 2007, 11:58 AM

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.

tumler · 8th August 2007, 12:44 PM

Sorry also forget to mention
1 balanced microphone input aswell.

amc184 · 8th August 2007, 11:15 PM

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, http://sound.westhost.com/index.html
Search and you will find the rest.

Good luck.

8th August 2007, 11:58 AM	#1
tumler diyAudio Member Join Date: Aug 2006	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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8th August 2007, 12:44 PM	#2
tumler diyAudio Member Join Date: Aug 2006	Sorry also forget to mention 1 balanced microphone input aswell.

8th August 2007, 11:15 PM	#3
amc184 diyAudio Member 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, http://sound.westhost.com/index.html Search and you will find the rest. Good luck.

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