RDL TX-AFC1F Studio Quality Audio Format Converter - Balanced to Unbalanced TransformerFeatures: Studio Quality Bifilar Audio Transformer Galvanic Isolation with the Convenience of RDL TXs Connectorized with Gold Contacts on Input and Output Balanced to Unbalanced Conversion Professional to Consumer Level Conversion Frequency Response: 20 Hz to 20 kHz (+ 0. 1 dB) THD: < 0. 06% (50 Hz to 20 kHz, +4 dBu input) 0. 0015% (Typ. 1 kHz, +4 dBu input) Input: +4 dBu (+22 dBu max.), 10 k Bridging, XLR Output Level: 10 dBV, Phono jack CMRR: >85 dB