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

The RDL DG-PSP1A is a gray Decora-style active loudspeaker designed to provide exceptional audio quality from an ultra-compact enclosure. It combines a 2 W RMS audio amplifier, clipping protection, RDL Format-A connectivity, and user-accessible gain adjustment in a unit measuring only 4.12 inches high by 1.72 inches wide. The acoustically optimized enclosure provides fidelity comparable to larger drivers while supporting unobtrusive in-wall or flat-surface installation.

Ideal Use Cases

The DG-PSP1A is suited to RDL Format-A audio systems that require a compact loudspeaker at the listening location. Its Decora-style dimensions make it useful where available wall or surface space is limited. Hemispherical dispersion supports coverage when the loudspeaker is mounted in a wall or on a flat surface. A front-panel level control also makes the model appropriate when the listener needs convenient access to local audio adjustment without changing settings at the connected Format-A sender.

Why Choose This Model

This model integrates the loudspeaker, a 2 W RMS amplifier, a compressor/limiter, and a single-turn audio-taper gain control into one compact enclosure. The compressor/limiter prevents clipping, helping the amplifier operate within its available output capability. Its specified maximum sound pressure level is 81 dB, and its nominal frequency range extends from 150 Hz to 20 kHz. These characteristics make the DG-PSP1A a focused choice when compact dimensions, local level adjustment, and direct compatibility with an RDL Format-A source are primary requirements.

Installation and Integration

The loudspeaker connects to an RDL Format-A sender over twisted-pair cable through its RJ45 input. A rear-panel switch selects Format-A signal pair A, B, or C, allowing the installer to choose the required audio pair at the loudspeaker. Once the signal pair is selected, the single-turn front-panel control provides audio gain adjustment.

Operating power is supplied from the RDL twisted-pair Format-A sender. The specified requirement is 24 Vdc at 55 mA while idle and 100 mA maximum, with a ground-referenced supply. The listed recommended supplies are the PS-24AS for the USA and PS-24AX for international use. Installation planning should accommodate the enclosure dimensions of 4.12 inches high, 1.72 inches wide, and 2.27 inches deep. The specified operating environment is 0 degrees C to 40 degrees C maximum, with 20 degrees C recommended.

Performance Highlights

• Integrated 2 W RMS audio amplifier
• Maximum SPL of 81 dB
• Nominal frequency range of 150 Hz to 20 kHz
• Compressor/limiter that prevents clipping
• CMRR greater than 80 dB from 50 Hz to 120 Hz
• Hemispherical dispersion when mounted in a wall or on a flat surface
• Acoustically optimized Decora enclosure
• Fidelity comparable to larger drivers

Together, these specifications define an active loudspeaker optimized for compact Format-A installations. The wide nominal upper-frequency extension, integrated amplification, and clipping protection are provided without requiring a separate amplifier at the loudspeaker location.

What Makes It Different

The DG-PSP1A differs from a conventional passive wall loudspeaker by incorporating its own amplifier and receiving both its audio connection and operating power through an RDL Format-A system. Its controls are divided logically between installation and everyday operation: signal-pair selection is located on the rear panel, while gain adjustment remains accessible from the front. The selectable A, B, or C Format-A pair also provides integration flexibility when multiple signal pairs are present. Its gray Decora-style enclosure keeps the complete amplified loudspeaker within a notably compact physical format.

Final Assessment

The RDL DG-PSP1A offers a practical combination of compact installation, Format-A compatibility, integrated 2 W RMS amplification, and front-panel user level adjustment. With selectable signal-pair routing, RJ45 twisted-pair connectivity, clipping protection, hemispherical dispersion, and an 81 dB maximum SPL specification, it is a precisely defined solution for adding a gray Decora-style active loudspeaker to an RDL Format-A audio system.