TX-1A

RDL TX-1A – Balanced to Unbalanced Transformer with Adjustable Output

The RDL TX-1A is a passive audio transformer designed for professional AV applications, providing galvanic isolation and converting balanced line-level signals to unbalanced outputs. It features an adjustable trimpot to reduce output level from 4 to 24 dB below the input.

TX-1A supports both 10 kΩ bridging and 600 Ω terminated inputs, offering flexibility for various audio sources. It delivers a wide frequency response from 20 Hz to 20 kHz with low distortion (<0.05% THD at 1 kHz), ensuring clean and accurate audio transmission.

Detachable terminal block connectors make integration into installation systems easy and reliable.

Functionality

• Converts balanced line-level to unbalanced output
• Provides galvanic isolation
• Adjustable output level (4–24 dB below input)
• Supports bridging and terminated inputs

Features

• Device type: balanced to unbalanced transformer
• Frequency response: 20 Hz – 20 kHz (±0.5 dB)
• THD: < 0.05% (1 kHz)
• Input impedance: 10 kΩ or 600 Ω
• Output level: adjustable via trimpot
• Input/output: balanced / unbalanced
• Connectors: detachable terminal blocks
• Design: passive, compact

The RDL TX-1A is a reliable solution for AV professionals needing signal conversion and isolation in professional audio systems.