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

Ideal Use Cases

The RDL DS-PSP1AF is a stainless steel Decora-style active loudspeaker designed for RDL Format-A installations. Its ultra-compact enclosure measures 4.12 inches high, 1.72 inches wide, and 2.27 inches deep, making it suitable for projects that require audio from an in-wall or flat-surface location. It is especially relevant when the audio feed is supplied by an RDL twisted-pair Format-A sender and the installer needs to select signal pair A, B, or C at the loudspeaker. Hemispherical dispersion provides coverage from its installed position.

Why Choose This Model

The DS-PSP1AF combines a loudspeaker and 2-watt RMS audio amplifier in an acoustically optimized Decora enclosure. Its compressor/limiter prevents clipping, while the installer-set gain supports controlled level adjustment during system setup. RDL describes the design as delivering exceptional audio quality for its ultra-compact size, with fidelity comparable to larger drivers. The stainless steel configuration provides the specified finish for installations requiring this model variant.

Performance is clearly defined by a maximum SPL of 81 dB and a nominal frequency range of 150 Hz to 20 kHz. These ratings allow system designers and installers to evaluate the loudspeaker against the required listening level and frequency coverage before specifying it for a project.

Installation and Integration

The input is RDL Format-A and uses an RJ45 connection. The loudspeaker connects to a compatible Format-A sender with twisted-pair cable and is powered from the RDL twisted-pair Format-A sender. A rear-panel switch selects Format-A signal pair A, B, or C, allowing the unit to use the required pair within the installation. Gain adjustment is provided through a single-turn audio-taper control and is set by the installer.

The specified power requirement is 24 Vdc at 55 mA while idle and 100 mA maximum, with ground-referenced power. The listed recommended power supplies are the PS-24AS for the USA and PS-24AX for international use. The ambient operating specification is 0°C to 40°C maximum, with 20°C recommended. The enclosure can be mounted in a wall or on a flat surface.

Performance Highlights

The integrated 2-watt RMS amplifier provides the active amplification required by the compact loudspeaker. A built-in compressor/limiter prevents clipping instead of allowing excessive signal peaks to pass without control. The nominal 150 Hz to 20 kHz frequency range extends through the stated upper audio range, while the maximum output is rated at 81 dB SPL.

Common-mode rejection ratio is specified at greater than 80 dB from 50 Hz to 120 Hz. The acoustically optimized enclosure and hemispherical dispersion are designed around the Decora form factor, allowing the loudspeaker to deliver its stated performance from an in-wall or flat-surface installation.

What Makes It Different

The DS-PSP1AF is distinguished by the way its amplifier, loudspeaker, Format-A input, pair selection, and installer gain control are combined in one ultra-compact Decora-style product. It does not require a separate loudspeaker amplifier at the installed endpoint because the enclosure contains a 2-watt RMS amplifier and receives power from the Format-A sender. Rear-panel selection of pair A, B, or C also gives the installer direct control over which Format-A signal pair feeds the loudspeaker.

Its 4.12-by-1.72-inch face dimensions and 2.27-inch depth provide a precise physical profile for installation planning. The stainless steel finish identifies this specific DS-PSP1AF version.

Final Assessment

For an RDL Format-A system requiring a compact stainless steel Decora-style active loudspeaker, the DS-PSP1AF brings together twisted-pair connectivity, sender-supplied power, installer-adjustable gain, selectable signal pairs, and clipping protection. Its 81 dB maximum SPL, nominal 150 Hz to 20 kHz frequency range, and stated power requirements provide concrete criteria for system design. When those ratings match the intended installation, this model offers a tightly integrated loudspeaker solution for in-wall or flat-surface mounting.