The primary "feature" of the hardware this file supports is converting consumer-grade audio signals into professional-grade signals.

ST-UBA2 Unbalanced to Balanced Amplifier - RDL®

: It converts unbalanced consumer format signals (-10 dBV) to professional balanced +4 dBu signals.

Description. The ST-UBA2 is used in any application requiring conversion from unbalanced consumer format signals to professional + rdlnet.com ST-UBA2 Unbalanced to Balanced Amplifier - RDL®

: Designed to balance audio from sources like CD players, computer sound cards, televisions, and cassette decks.