Steve Eddy
Member of the Trade: The Audio Guild
Aka: TempAccount555
- Joined
- Sep 28, 2003
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I'm sorry, but I'm not quite following just how you're looking to hook everything up by your description here. And I don't know what you mean by "the capacitor that serves as an output buffer."
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Generally speaking, "signal ground" and "power supply ground" are one and the same. Though if you're using a single supply with a level shifter, the signal ground reference is taken from a point midway between the power supply rather than from the power supply ground.
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Originally Posted by Aynjell /img/forum/go_quote.gif Let's say I have two op amps in a sequence, is the capacitor that serves as an output buffer required for the first op amp required, or can I just setup the buffer on the second op amp? I was thinking about it last night, you could make 2 cmoy boards and use the same dual op amp twice, once for each channel, or if you wanted to you could send the output of the left side of left, to the right side of right and then send that to the jack, and vice versa. is this a terrible idea or could it work? Also, let's say I did such a setup, for example, if I did a gain of 1, and then a gain of 2, that'd give me a total gain of 3, or 4? I wasn't sure if I was multiplying or not. |
I'm sorry, but I'm not quite following just how you're looking to hook everything up by your description here. And I don't know what you mean by "the capacitor that serves as an output buffer."
Quote:
Also, the way i understand it is the amps with 3 channels pull the ground through the third (or if fully balanced, both grounds) through the third and/or fourth board. Does the ground signal pass through the eletrical part of the amplifier or the signal part of the amplifier? |
Generally speaking, "signal ground" and "power supply ground" are one and the same. Though if you're using a single supply with a level shifter, the signal ground reference is taken from a point midway between the power supply rather than from the power supply ground.
se