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In Reply to: what is mono dual power supply in a preamp posted by Heifetz on July 6, 2016 at 00:27:17:
whose power supply consists of separate transformers and circuits for each channel. One might argue whether or not such might also need to reside in separate boxes.Click here for an example - Audio Research REF10. Click the fourth thumbnail under the main pic for a view. Likewise, the audio circuitry (third thumbnail) is dual mono as well. In this case, there are actually a total of four supplies (and transformers) - two for the digital control circuitry and two for the audio signal.
Is there an alternative to this and which one better ?
The alternative is to employ a shared power supply which is far and away the more common approach.
Which is better? Arguably, one gets better isolation with separate supplies as you find using mono amplifiers which necessarily have separate supplies as well.
Edits: 07/06/16
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Follow Ups
- That refers to a stereo preamp - E-Stat 07:03:20 07/06/16 (0)
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