RDL TX-AT1 – 600 Ohm 1:1 Audio Isolation Transformer is backordered and will ship as soon as it is back in stock.
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What is the RDL TX-AT1?
The RDL TX-AT1 is a single-channel 600 Ω 1:1 audio isolation transformer with terminal block connections. It provides studio-quality galvanic isolation between balanced or unbalanced equipment and a balanced or unbalanced line.
How does it work?

Barrier block connections carry the input and output, and a common ground terminal connects to the metal support structure. The 1:1 transformer has 600 Ω bifilar primary and secondary windings and is optimized to be driven from a low-impedance source into a bridging load. Either winding may be wired unbalanced, converting between balanced and unbalanced lines. RDL specifies 20 Hz to 20 kHz (±0.1 dB) response, THD below 0.035%, and CMRR above 85 dB. RDL lists TX mounting accessories such as the TX-RA5 19-inch racking system and MB-1 mounting kit for this module.
What are the key features?
- 1:1 galvanic isolation — The 600 Ω transformer isolates connected equipment to break ground loops.
- Balanced or unbalanced wiring — Either winding may be wired unbalanced for balanced to unbalanced conversion.
- Terminal block connections — Barrier block terminals simplify input and output wiring.
- Studio-grade performance — RDL specifies ±0.1 dB response from 20 Hz to 20 kHz and +22 dBu maximum level.
- Drives 600 ohm lines — The transformer can drive a 600 Ω line from a low-impedance source.
At Creation Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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