Pair of Gaines Audio Model 642 Balanced Line Interfaces

RDL FP-UBC2 Unbalanced-to-Balanced Audio Converter.

Aphex 124A 10/4 Audio Level Interface Balanced Unbalanced -10dBV to +4dBu

Rolls MB15b ProMatch Balanced/Unbalanced Converter 3.5mm/RCA/XLR

Passive DI Box Single Channel Balanced Audio Signal Converter XLR TRS Interface

RDL RU-SX4A Balanced Audio Switcher

Canford Audio Pro stereo interface two-way balanced unbalanced active XLR Phono

TX-AFC1M Audio Convertor Unbalanced to Balanced Audio Transformer - RCA to XLR