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In Reply to: RE: This is patently false for 2 reasons: posted by Ugly on May 31, 2017 at 09:52:06:
is what you are looking for.
In the case of the RIAA network, it can be done differentially so you don't need dual matched resistors there either (although you do want them to be correct for the right curve of course).
For example in our preamp the EQ network calls for dual 110K resistors in one location but they can be replaced by a single 220K resistor. In this way if one half of the balanced circuit does not perform as well as the other half, the EQ is unaffected.
The prior example is also a bit of myth-busting about the idea that you need twice as many parts as single ended; obviously you don't; our EQ network has the same number of parts as a single-ended embodiment, despite being balanced differential.
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Follow Ups
- It helps, but mainly the voltage input - Ralph 11:09:04 05/31/17 (9)
- Yes, I see. Though... - Ugly 22:26:44 06/01/17 (8)
- I'm not sure - Ralph 09:36:04 06/02/17 (7)
- RE: I'm not sure - Ugly 10:26:03 06/02/17 (6)
- I don't think you need to do that - Ralph 10:51:51 06/02/17 (5)
- RE: I don't think you need to do that - Ugly 09:30:52 06/03/17 (4)
- Are you building a preamp from scratch then? nt - Ralph 08:52:04 06/05/17 (3)
- RE: Are you building a preamp from scratch then? nt - Ugly 19:21:24 06/05/17 (2)
- Ahhh Day dreaming the ? - bare 16:29:23 06/11/17 (1)
- RE: Ahhh Day dreaming the ? - Ugly 11:33:40 06/13/17 (0)