Decora-Style Active Loudspeaker-Format-A-Stainless Steel-User Level Adjust

Ideal Use Cases

The RDL DS-PSP1A is a Decora-style active loudspeaker designed for locations that need localized audio in an ultra-compact format. Its stainless steel configuration and acoustically optimized Decora enclosure support installation in a wall or on a flat surface. The loudspeaker connects directly to an RDL Format-A sender, making it suitable for systems already distributing audio through RDL twisted-pair infrastructure.

With a 2-watt RMS amplifier built into the loudspeaker, the DS-PSP1A combines amplification, level control, and sound reproduction in one compact device. Hemispherical dispersion helps distribute audio outward from the installed surface. The stated fidelity is comparable to larger drivers, allowing the compact enclosure to serve applications where available installation space is limited but intelligible, full-range audio coverage remains important.

Why Choose This Model

The DS-PSP1A provides a focused set of controls and protection features for dependable everyday operation. A single-turn, audio-taper gain control is located on the front panel, giving the user direct access to the output level after installation. Its internal compressor/limiter prevents clipping, helping the two-watt amplifier operate within its available output capability when the incoming level rises.

The loudspeaker receives its audio from an RDL Format-A connection through an RJ45 input. A rear-panel switch selects Format-A signal pair A, B, or C, so the speaker can be assigned to the required pair within the twisted-pair system. This selectable architecture, front-accessible gain control, integrated amplifier, and optimized enclosure distinguish the DS-PSP1A as more than a basic compact loudspeaker.

Installation and Integration

Integration begins with an RDL Format-A sender and twisted-pair cable terminated for the DS-PSP1A’s RJ45 input. The loudspeaker is powered from the RDL twisted-pair Format-A sender, while the rear-panel selector determines whether it receives signal pair A, B, or C. Once the required pair is selected, the front-panel gain adjustment remains available for setting the listening level.

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. It can be mounted in a wall or on a flat surface. Its electrical requirement is 24 Vdc at 55 mA while idle and 100 mA maximum, with ground-referenced power. The source data identifies the PS-24AS for the USA and PS-24AX for international use as recommended power supplies.

Specified operation is from 0 degrees C to 40 degrees C maximum, with 20 degrees C recommended. These dimensional, power, and environmental requirements should be considered when planning the mounting position and associated Format-A system.

Performance Highlights

The integrated amplifier delivers 2 watts RMS and supports a maximum sound pressure level of 81 dB. Its nominal frequency range extends from 150 Hz to 20 kHz. Common-mode rejection ratio is greater than 80 dB from 50 Hz to 120 Hz. Together, these published figures define the operating range of the compact loudspeaker and provide concrete reference points for evaluating it against the intended audio level and frequency requirements.

The acoustically optimized enclosure is designed to obtain fidelity comparable to larger drivers despite the unit’s compact dimensions. Hemispherical dispersion supports sound distribution when the speaker is installed in a wall or on a flat surface. The compressor/limiter adds active protection against clipping, while the front gain control lets the final output level be adjusted at the loudspeaker.

What Makes It Different

The DS-PSP1A brings several system functions together in a Decora-style footprint: an active two-watt RMS amplifier, loudspeaker driver, compressor/limiter, Format-A twisted-pair input, selectable signal-pair routing, and user-accessible gain adjustment. Its stainless steel format provides the specified version for installations requiring that configuration.

The rear selector and front control separate system assignment from routine level adjustment. Pair A, B, or C is chosen at the rear, while the listening level is controlled from the front. This arrangement supports straightforward Format-A integration without adding an external amplifier at the loudspeaker location.

Final Assessment

The RDL DS-PSP1A is a compact active loudspeaker for RDL Format-A audio systems where installation size, direct level control, and twisted-pair connectivity are central requirements. Its 81 dB maximum SPL, nominal 150 Hz to 20 kHz range, two-watt RMS amplifier, clipping protection, and hemispherical dispersion provide a clearly documented performance profile. For a wall-mounted or flat-surface Format-A endpoint with selectable A, B, or C signal-pair operation, the DS-PSP1A offers an integrated and purpose-built solution.