Originally Posted by paradoxper
Care to share exactly what benefits an differential amp offers from bridged?
Reading through the thread would yield this in extensive detail as a number of people contributed data.
To summarize, differential cancels out noise presented at the inputs if you are using a balanced source. Bridged does a poor job of this because perfect matching of the two amps is impossible and it introduces additional artifacts, again due to the same matching challenge.
When using an unbalanced input then you don't get noise cancelling benefits from differential but you do still get the artifacts issue from the bridged configuration.
The difference in this area is quite small and whether it makes any practical difference could be debated.