Editing Balanced audio (section)

==Internally balanced audio design==

Professional audio products (recording, public address, etc.) generally provide balanced inputs and outputs, typically via [[XLR connector|XLR]] or [[Phone connector (audio)|TRS phone connector]]s. However, in most cases, the internal circuitry is entirely unbalanced.

A small number of audio products have been designed with an entirely balanced signal path from input to output; the circuitry maintains its impedance balance throughout the device. This design is achieved by providing identical (mirrored) internal signal paths for both the "hot" and "cold" conductors. In critical applications, a 100% [[balanced circuit]] design can offer better [[signal integrity]] by avoiding the extra amplifier stages or [[transformer]]s required for front-end unbalancing and back-end rebalancing.<ref name="fully-differential">{{cite web
 |url=http://www.ti.com/lit/pdf/SLOA054
 |title=Texas Instruments Application Report SLOA054E: Fully-Differential Amplifiers
 |last=Karki
 |first=James
 |date=2016
 |orig-date=2002
 |publisher=Texas Instruments
 |access-date=10 June 2021
 |archive-url=https://web.archive.org/web/20201105131555if_/https://www.ti.com/lit/an/sloa054e/sloa054e.pdf
 |archive-date=5 November 2020
 |archive-format=PDF
}}</ref>