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In Reply to: RE: Questions about balanced and unbalanced interconnects posted by John Elison on January 19, 2015 at 12:30:32:
Such an amplifier would have a terrible Common mode rejection ratio, which is actually pretty important if you want to run a balanced connection.
This is why transformers are often used as you can get really good CMRR numbers.
I'm not sure if I have ever seen such an amplifier or what it would be used for. I had a balanced Kepco lab amp years ago but even that employed a differential input.
But I see this idea a lot. It should be put to bed as such an amplifier is really just plain impractical.
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Follow Ups
- That's a common idea but rare in practice! - Ralph 13:22:41 01/19/15 (4)
- RE: That's a common idea but rare in practice! - John Elison 14:50:46 01/19/15 (3)
- There are plenty of fully balanced amps and preamps - Ralph 08:46:20 01/20/15 (2)
- RE: There are plenty of fully balanced amps and preamps - John Elison 10:48:34 01/20/15 (1)
- RE: There are plenty of fully balanced amps and preamps - Ralph 11:17:52 01/20/15 (0)