Radio Design Labs TX-AT1

Audio Isolation Transformer - 600 Ω 1:1

Studio Quality Bifilar Audio Transformer.

The TX-AT1 is the ideal choice in many applications requiring studio quality transformer coupling between balanced or unbalanced audio equipment and a balanced or unbalanced line.

The TX-AT1 is a single-channel (mono) module featuring barrier block connections for the input and output. A studio-quality audio transformer couples the audio input to the audio output. A common ground terminal is connected to the TX-AT1 metal support structure.

A 1:1 audio transformer provides galvanic isolation. The audio transformer has 600 Ohm primary and secondary bifilar windings, though is optimized to be driven from a low-impedance source into a bridging load. The primary and/or secondary may be wired unbalanced, providing conversion between balanced
and unbalanced audio lines. The TX-AT1 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-AT1’s compact size permits mounting in a variety of spaces and in various locations in equipment racks. The TX-AT1 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-AT1 individually, or combine it with other RDL products as part of a complete audio/video system.

• Terminal Block Transformer Connections
• Galvanic Isolation with 1:1 Transformer Coupling
• Transformer to Drive 600 Ohm Line
• Convenience of RDL® TXs™
• Frequency Response: 20 Hz to 20 kHz (+/- 0.1 dB)
• THD: < 0.035% (50 Hz to 20 kHz, +4 dBu input)
• 0.001% (Typ. 1 kHz, +4 dBu input)
• Input / Output Level: +4 dBu, +22 dBu max.
• CMRR: > 85 dB (balanced input, 50 to 60 Hz)