TX-AT1

RDL TX-AT1 – Audio Isolation Transformer 600 Ω 1:1

The RDL TX-AT1 is a studio-quality audio transformer designed for professional AV installations, providing galvanic isolation between audio devices. Its 1:1 bifilar transformer coupling ensures wideband performance, ultra-low distortion, and high headroom, making it ideal for both studio and general-purpose applications.

The TX-AT1 supports +4 dBu input/output levels (up to +22 dBu max) and can be used with balanced or unbalanced lines. The 600 Ω primary and secondary windings are optimized for low-impedance sources and bridging loads. The transformer can be wired to convert between balanced and unbalanced formats while maintaining isolation.

Barrier block connectors allow easy integration into installation systems. Its compact design supports mounting in various locations, including rack sides and rails, using RDL mounting accessories. The TX-AT1 can be used standalone or as part of a complete AV system.

Functionality

• Provides galvanic isolation for audio signals
• 1:1 transformer coupling for format conversion
• Supports balanced and unbalanced lines
• Ideal for studio and general-purpose installations
• Compact design for flexible mounting

Features

• Device type: audio isolation transformer
• Impedance: 600 Ω (input/output)
• Signal level: +4 dBu (max +22 dBu)
• Frequency response: 20 Hz – 20 kHz (±0.1 dB)
• THD: < 0.035% (50 Hz – 20 kHz), typ. 0.001% (1 kHz)
• CMRR: > 85 dB (50–60 Hz)
• Connectors: barrier block terminals
• Design: passive, compact
• Mounting: flat surfaces, rack sides, front/rear rails

The RDL TX-AT1 is a reliable solution for AV professionals needing high-quality audio isolation and format conversion in professional systems.