Decora-Style Active Loudspeaker-White-Installer Level Adjust

Ideal Use Cases

The RDL D-PSP1F is a white, Decora-style active loudspeaker designed for applications that need clear audio from an ultra-compact enclosure. Its form factor supports installation in a wall or on a flat surface, making it suitable where a larger loudspeaker would be difficult to accommodate. Hemispherical dispersion helps distribute sound from the installed position, while the 81 dB maximum SPL and nominal 150 Hz to 20 kHz frequency range define its intended operating capabilities.

Two rear-panel input options support integration with balanced and unbalanced audio systems. The balanced input accepts a nominal +4 dBu signal, while the unbalanced input is specified for a nominal -10 dBV signal. This flexibility makes the loudspeaker useful across systems with different standard operating levels.

Why Choose This Model

The D-PSP1F combines an active loudspeaker, a 2-watt RMS audio amplifier, and installer-adjustable gain in one compact Decora enclosure. Because amplification is integrated, the unit can receive a line-level audio signal without requiring a separate local power amplifier. A built-in compressor/limiter helps prevent clipping, providing signal control when program levels approach the available amplifier output.

Its acoustically optimized enclosure is engineered to deliver fidelity comparable to larger drivers despite its compact size. The white finish and Decora-style format provide a practical option for installations where equipment size and visual integration matter alongside audio performance.

Installation and Integration

The loudspeaker may be mounted in a wall or on a flat surface. It measures 4.12 inches high, 1.72 inches wide, and 2.64 inches deep, equivalent to 10.46 by 4.37 by 6.7 centimeters. These dimensions allow the installer to evaluate the required space before selecting the final mounting location.

Both audio inputs are located on the rear panel. Input impedance is 30 kΩ balanced or 10 kΩ unbalanced. The balanced connection operates at a nominal +4 dBu level, and the unbalanced connection operates at a nominal -10 dBV level. Maximum input level is +22 dBu. Gain is adjusted with a single-turn audio-taper control intended to be set by the installer, helping keep the final operating level under installation control.

The D-PSP1F requires ground-referenced 24 Vdc power. Current draw is specified as 55 mA while idle and 100 mA maximum. Recommended power supplies are the PS-24AS for the USA and the PS-24AX for international use.

Performance Highlights

A 2-watt RMS amplifier drives the compact loudspeaker, with a maximum SPL rating of 81 dB. Its nominal frequency range extends from 150 Hz to 20 kHz. Hemispherical dispersion supports broad sound distribution whether the enclosure is installed in a wall or on a flat surface.

The compressor/limiter is a defining performance feature because it is designed to prevent clipping. Common-mode rejection ratio is greater than 50 dB from 50 Hz to 120 Hz. Together with the balanced input option, this specification supports integration into balanced line-level audio installations.

What Makes It Different

The D-PSP1F places amplification, level adjustment, signal limiting, and a compact loudspeaker into an acoustically optimized Decora enclosure. The gain control is deliberately installer-set rather than presented as a routine user control. This configuration is useful when the required playback level should be established during system setup and then left in place.

Support for both +4 dBu balanced and -10 dBV unbalanced nominal inputs distinguishes the model as a flexible integration component. Its combination of rear-panel connections, compact dimensions, white finish, and selectable mounting approach allows it to fit installations where conventional loudspeaker enclosures may be impractical.

Final Assessment

The RDL D-PSP1F is a focused solution for compact installed audio. It provides a 2-watt RMS amplifier, clipping protection through a compressor/limiter, balanced and unbalanced rear-panel inputs, and installer-adjustable gain. Its 150 Hz to 20 kHz nominal frequency range, 81 dB maximum SPL, and hemispherical dispersion establish clear performance parameters for system planning.

For projects requiring a white Decora-style active loudspeaker with line-level input flexibility and a small installation footprint, the D-PSP1F brings the essential amplification, loudspeaker, and level-setting functions together in one enclosure.