RDL TX-TPR6A TP Audio Receiver

The RDL TX-TPR6A is a passive TP audio receiver designed for RDL TP Format-A signals. An RJ45 input accepts the Format-A feed, while a front-panel switch selects signal pair A, B, or C for the output. Balanced and unbalanced connections accommodate different destination equipment, and the RJ45 LOOP OUT passes the signal and power pairs through for connection to additional Format-A receivers.

Ideal Use Cases

The TX-TPR6A is suited to RDL TP Format-A systems that need to recover one selected audio pair at a receiver location. It is particularly useful when the destination requires either a balanced connection on a detachable terminal block or an unbalanced connection through an RCA phono jack. Pair selection makes the receiver adaptable to Format-A feeds carrying signals on pair A, B, or C.

• Receiving one switch-selected audio pair from an RDL TP Format-A feed
• Connecting Format-A audio to balanced terminal-block equipment
• Connecting Format-A audio to equipment with an unbalanced RCA input
• Passing the Format-A feed onward to additional compatible receivers
• Adding a receiver where passive operation is preferred

Why Choose This Model

The TX-TPR6A combines selectable Format-A reception, two output formats, loop-through connectivity, and passive circuitry in one compact unit. The balanced output is rated at 10 kΩ and provides a nominal +4 dBu level, with a maximum level of +22 dBu. The 3 kΩ unbalanced output provides a nominal -10 dBV level. This arrangement supports equipment using either professional balanced levels or unbalanced input connections without requiring a powered receiver circuit.

Galvanic isolation is provided for both outputs. The receiver also preserves the incoming signal and power pairs at its LOOP OUT connection, allowing the Format-A path to continue to another receiver instead of ending at the first output point.

Installation and Integration

Integration begins with an RDL TP Format-A signal connected to the RJ45 input. The pair-selection switch is then set to A, B, or C according to the signal pair required at the output. Balanced audio is available through the detachable terminal block, while unbalanced audio is available through the RCA connector. The selected connection can be matched to the input format of the receiving device.

The RJ45 LOOP OUT provides pass-through for the Format-A signal and power pairs. This enables daisy-chaining with additional Format-A receivers when more than one receiving location is needed along the same feed. Because the TX-TPR6A uses passive circuitry, it has no separate power requirement. Its operating environment is specified from 0° C to 50° C.

The enclosure measures 3.17 inches wide, 1.76 inches high, and 2.06 inches deep, equivalent to 8.05 by 4.47 by 5.23 cm. These dimensions allow the receiver to be placed where the Format-A feed and destination audio connection are accessible.

Performance Highlights

The specified frequency response is 20 Hz to 20 kHz within ±0.75 dB. THD+N is less than 0.1% at 1 kHz and less than 0.5% from 50 Hz to 20 kHz. Headroom above the nominal +4 dBu balanced level is greater than 18 dB, while common-mode rejection is greater than 90 dB from 50 Hz to 150 Hz. Noise below +4 dBu is specified at less than 90 dB.

Output levels are defined for direct system planning: +4 dBu nominal for the balanced terminal-block output and -10 dBV for the unbalanced RCA output. The balanced output also supports a specified maximum level of +22 dBu.

What Makes It Different

The distinguishing feature of the TX-TPR6A is its combination of switch-selectable Format-A pair reception and passive, galvanically isolated output circuitry. Pair A, B, or C can be selected without changing the incoming RJ45 connection. The detachable terminal block and RCA jack provide balanced and unbalanced connection choices, while LOOP OUT retains the Format-A feed for downstream receivers.

This combination reduces the number of separate functions needed at the receiving point: signal-pair selection, Format-A reception, output isolation, level-specific balanced or unbalanced connectivity, and feed continuation are all provided by the same model.

Final Assessment

The RDL TX-TPR6A is a focused solution for extracting a selected A, B, or C signal pair from an RDL TP Format-A connection. Its +4 dBu balanced and -10 dBV unbalanced outputs, galvanic isolation, passive operation, and RJ45 loop-through make it well defined for Format-A installations requiring flexible output connectivity and daisy-chain capability.