The TX-A2 is the ideal choice in installations requiring passive isolation and level attenuation between a professional balanced line-level mono source and consumer equipment unbalanced inputs.


The TX-A2 is a complete unbalanced line-level audio output module. The front panel provides a detachable terminal block for connection of a balanced +4 dBu audio source. The input signal is coupled to two front-panel gold plated RCA jacks through a studio-quality isolation transformer. Each output is coupled through an attenuation network that produces a nominal -10 dBV level. Both output jacks may be used to feed two mono equipment inputs or one stereo input. A single output jack may be used for mono. Shielding is provided by the TX-A2's heavy duty aluminum enclosure.


Wherever professional format audio signals need to be converted to an unbalanced line level, the TX-A2 and TX-A2D are an ideal choice. Use them individually or in conjunction with other RDL products as part of a complete audio/video system.

  • Unbalanced Audio Outputs from a Balanced Line
  • Balanced to Unbalanced Conversion
  • Mono Input to Stereo Output
  • +4 dBu Input Level to -10 dBV Output Level
  • Studio-Quality Transformer Isolation
  • Passive Converter with Output Jacks
Total Harmonic Distortion<0.05% (20 Hz to 20 kHz, +4 dBu input); <0.01% (1 kHz)
Dimensions3.17" (8.05 cm) W; 1.76" (4.47 cm) H; 2.06" (5.23 cm) D3.17 x 1.76 x 2.06 in
Frequency response (line level)20 Hz to 20 kHz (±0.5 dB)
Output level-10 dBV nominal
Output connectors (2)Gold plated phono jacks
Input level+4 dBu nominal; +22 dBu max
Input connector 1Detachable terminal block
Package TypeCardboard Box
Tariff code8543.70.9860
WEEE weight0.57 lbs.
Shipping Weight0.72 lbs.
Package Dimensions3.625 x 4.625 x 2.125 in.
Ambient Operating Environment0° C to 55° C