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Audio Amplifier Input Stage
Audio Amplifier Input Stage
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Old 20th June 2004, 03:03 AM   #1
Randy Knutson is offline Randy Knutson  United States
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Question Audio Amplifier Input Stage


I'm designing the input stage for a power amplifier and was wondering if you pros could critique it. This is the first time I've ever designed something like this so any critisicm would be helpful! I'm aiming for something simple, cost effective and that sounds reasonably decent.

-=Randy Knutson
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Old 20th June 2004, 05:13 AM   #2
Bill Fitzpatrick is offline Bill Fitzpatrick  United States
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That's not an amplifier input stage. Looks more like a pre-amp to me.
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Old 20th June 2004, 11:17 AM   #3
Jan Dupont is offline Jan Dupont  Denmark
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Sure look like a preamp
You are missing the Voltage Amplification Stage.....
Free Schematic and Service Manual downloads www.audio-circuit.dk, Spare time company (just for fun): www.dupont-audio.com
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Old 20th June 2004, 08:33 PM   #4
richie00boy is offline richie00boy  United Kingdom
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Audio Amplifier Input Stage
I'd say it's a pre-amp as well, but I know what you meant

Some good ideas in there, but I think you may have trouble sourcing a 3-gang pot for the filter.
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