Wall-Mounted Bluetooth Audio Format-A Interface-Stainless Steel

The RDL DS-BT1A is a wall-mounted Bluetooth audio interface that connects wireless audio sources to an RDL Format-A system over RJ45. Supplied in a stainless steel finish, it supports configurable summed-mono or stereo signal routing. Its combination of Bluetooth input, Format-A loop connectivity, rear-panel routing selection, and power through RJ45 provides a focused interface for installations using RDL Format-A audio distribution.

Ideal Use Cases

The DS-BT1A is suited to Format-A installations that need a wall-mounted connection point for Bluetooth audio. It allows a compatible wireless audio source to enter the wired Format-A signal path without requiring the source device to be positioned with the rest of the audio equipment.

In summed-mono mode, the Bluetooth audio can use signal pair A, B, or C, selected with a rear-panel switch. This configuration supports systems in which the audio must be assigned to a specific Format-A pair. Stereo mode uses pairs B and C while allowing pair A to pass through, making the interface applicable when stereo Bluetooth audio and an existing pair-A signal must share the Format-A connection.

Why Choose This Model

The model combines Bluetooth audio access with clearly defined Format-A routing. Its RDL Format-A output and RJ45 LOOP IN provide direct connections for the associated signal path, while the selectable operating modes allow the installer to choose between summed-mono and stereo operation.

Published audio performance includes a frequency response of 20 Hz to 20 kHz within ±0.5 dB and THD+N below 0.1%. The nominal audio operating relationship is specified as 20 dBFS equaling +4 dBu balanced. A stainless steel finish complements the wall-mounted format and identifies this DS-series version.

Installation and Integration

The DS-BT1A measures 1.73 inches wide, 4.11 inches high, and 1.62 inches deep. Its compact dimensions support installation at the wall location where Bluetooth access is required. The Format-A output uses an RJ45 connection, and the Format-A input is identified as RJ45 LOOP IN.

Power is supplied through RJ45 at 24 Vdc and 100 mA. Signal routing is configured at the rear panel. For summed-mono operation, the switch selects Format-A pair A, B, or C. For stereo operation, pairs B and C carry the audio while pair A passes through. The specified ambient operating range is 0°C to 40°C, which should be considered when selecting the installation location.

Performance Highlights

The DS-BT1A covers the stated 20 Hz to 20 kHz audio range with ±0.5 dB frequency-response tolerance. THD+N is specified at less than 0.1%, while noise below a -20 dBFS level is specified at less than -70 dB. Channel-to-channel crosstalk is listed as less than 70 dB.

Its nominal balanced operating level specification associates 20 dBFS with +4 dBu. These published values provide concrete performance references for evaluating the interface within a Format-A audio system. The choice of summed-mono or stereo routing also lets the signal arrangement match the available Format-A pairs rather than limiting the installation to a single fixed assignment.

What Makes It Different

The defining capability of the DS-BT1A is its selectable use of the three Format-A signal pairs. In summed-mono mode, the installer can assign the signal to pair A, B, or C. In stereo mode, the interface uses both B and C while preserving pair A as a pass-through path.

This routing flexibility is paired with an RJ45 LOOP IN, an RDL Format-A RJ45 output, and power delivered through the same RJ45-based installation. The result is a wall-mounted Bluetooth interface with documented control over how its audio is placed on the Format-A connection.

Final Assessment

The RDL DS-BT1A is a specialized choice for adding wall-mounted Bluetooth audio to an RDL Format-A system. It offers selectable summed-mono assignment, stereo operation across pairs B and C, pair-A pass-through in stereo mode, RJ45 loop connectivity, and 24 Vdc power through RJ45.

Its stainless steel finish, compact dimensions, full stated audio-band frequency response, and clearly defined routing modes make it a well-specified interface for installations that require Bluetooth input at the wall and integration with Format-A signal distribution.