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In Reply to: RE: There are plenty of fully balanced amps and preamps posted by John Elison on January 20, 2015 at 10:48:34:
When you say there are plenty of fully balanced power amps, I interpret this to mean that the balanced input signal is converted to an unbalanced signal through a differential input stage before being sent to the power amplification stage. Am I correct? In other words, would you consider my Parasound Halo A21 to be a fully balanced power amplifier?
In our amps and preamps, the balanced signal never goes single-ended at any point in the circuit and everything is handled by differential circuits.
The Parasound I would expect has a differential input and then goes to push-pull in the driver and output section. So yes, its fully balanced even if not fully differential.
Usually a differential amplifier is used to convert from single-ended to balanced, but it can go the other way as well. In the case of the Parasound, I don't think so as it has a balanced input in which both phases are processed by the amp.
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- RE: There are plenty of fully balanced amps and preamps - Ralph 11:17:52 01/20/15 (0)
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