Decora-Style Active Loudspeaker-Format-A-Black-User Level Adjust

Ideal Use Cases

The RDL DB-PSP1A is designed for Format-A audio systems that need an ultra-compact active loudspeaker mounted in a wall or on a flat surface. Its black, Decora-style enclosure provides a compact format for installations where available space is limited but clear audio reproduction, local level adjustment, and straightforward twisted-pair integration are required.

This model is particularly suited to applications in which an RDL Format-A sender already provides the audio signal and power. The RJ45 input, selectable Format-A signal pair, integrated amplifier, and front-panel gain adjustment combine the main audio functions in a single wall-mounted component.

Why Choose This Model

At the center of the DB-PSP1A is a 2-watt RMS audio amplifier paired with an acoustically optimized Decora enclosure. RDL specifies fidelity comparable to larger drivers despite the loudspeaker’s compact dimensions. A built-in compressor/limiter prevents clipping, helping the amplifier manage higher incoming levels without the abrupt distortion associated with signal clipping.

The front-panel, single-turn audio-taper gain control gives the user direct access to level adjustment. This is useful when the loudspeaker level needs to be changed at the installed location. Maximum output is rated at 81 dB SPL, while the nominal frequency range extends from 150 Hz to 20 kHz.

Installation and Integration

The DB-PSP1A connects to an RDL Format-A sender through twisted-pair cable and an RJ45 input. It is designed to receive power from the RDL twisted-pair Format-A sender. Its electrical requirement is 24 Vdc at 55 mA while idle and 100 mA maximum, with ground-referenced power.

A rear-panel switch selects Format-A signal pair A, B, or C, allowing the loudspeaker to use the appropriate pair carried by the Format-A connection. Level is then set with the front-panel gain control. The enclosure can be installed in a wall or mounted to a flat surface, and its hemispherical dispersion supports broad audio coverage from the installed position.

The unit measures 4.12 inches high, 1.72 inches wide, and 2.27 inches deep, equivalent to 10.46 by 4.37 by 5.77 centimeters. Its specified ambient operating range is 0 degrees C to 40 degrees C maximum, with 20 degrees C recommended.

Performance Highlights

The active design combines the loudspeaker and 2-watt RMS amplifier in one compact assembly. Its nominal 150 Hz to 20 kHz frequency range covers a broad portion of the audible spectrum, while the 81 dB maximum SPL defines its available sound-pressure output. The compressor/limiter provides clipping prevention as part of the integrated amplification system.

Common-mode rejection is specified at greater than 80 dB from 50 Hz to 120 Hz. This specification complements the twisted-pair Format-A input architecture. The acoustically optimized enclosure and hemispherical dispersion are intended to deliver useful performance from the small Decora-format faceplate, whether it is placed in a wall or on a flat mounting surface.

What Makes It Different

The DB-PSP1A brings several normally separate functions into one ultra-compact product: Format-A reception, pair selection, amplification, loudspeaker output, clipping prevention, and user-accessible gain adjustment. The rear-panel A, B, or C pair selector supports signal assignment during installation, while the front-panel control keeps everyday level adjustment accessible after installation.

Its combination of an RJ45 Format-A input and power supplied through the RDL Format-A sender streamlines its connection to a compatible system. The black Decora-style enclosure distinguishes this model’s physical format, while its stated fidelity comparable to larger drivers addresses installations that need compact dimensions without giving up the specified audio range.

Final Assessment

The RDL DB-PSP1A is a focused solution for adding a compact, locally adjustable active loudspeaker to an RDL Format-A installation. It combines a 2-watt RMS amplifier, compressor/limiter, selectable A, B, or C signal-pair input, RJ45 connectivity, and front-panel gain control. With in-wall or flat-surface mounting, hemispherical dispersion, and compact dimensions, it provides a clearly defined option for space-conscious Format-A audio integration.