RDL TXAFC1F Balanced to Unbalanced Audio Transformer





The TX-AFC1F is the ideal choice in many applications requiring studio quality transformer coupling between a balanced audio source and unbalanced equipment.
The TX-AFC1F is a single-channel (mono) module featuring a female XLR input and phono jack output. A studio quality audio transformer converts the audio input to unbalanced. An integral pad is set to produce an output level of –10 dBV for an input level of +4 dBu balanced. The XLR shield (Pin 1) is connected to
the output phono jack ground. The TX-AFC1F bridges the input signal and is optimized to feed a 10 k Ohm load.

A studio quality audio transformer provides format conversion and galvanic isolation. The TX-AFC1F delivers the wideband audio, ultra-low distortion, audio clarity and headroom common to studio equipment in a module suited to both studio and general-purpose audio installations.

The TX-AFC1F’s compact size permits mounting in a variety of spaces and in various locations in equipment racks. The location of the input/output jacks permits high density mounting against flat surfaces while maintaining accessibility to the connectors. The TX-AFC1F may be mounted where needed, to rack sides or in an equipment rack (either the front or rear rack rails) using a variety of available RDL mounting options. Use the TX-AFC1F individually, or combine it with other RDL products as part of a complete audio/video system.

  • 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 kΩ Bridging, XLR
  • Output Level: ‑10 dBV, Phono jack
  • CMRR: >85 dB (balanced input, 50 to 60 Hz)
Input: XLR Balanced, 10 kΩ Bridging
Input Level: +4 dBu; +22 dBu maximum
Output: Phono Jack, 10 kΩ Unbalanced
Output Level: -10 dBV
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)
0.125% (Typ. 20 Hz, +4 dBu input)
CMRR: >85 dB (50 Hz to 60 Hz)
Power Requirement: Passive

Overall Dimensions:
Height: 1.55 in. 3.94 cm
Width: 1.63 in. 4.14 cm
Length: 3.00 in. 7.62 cm
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