Decora-Style Active Loudspeaker-Gray-User Level Adjust

The RDL DG-PSP1 is a gray Decora-style active loudspeaker designed to deliver exceptional audio quality from an ultra-compact enclosure. It combines a 2 W RMS audio amplifier, two rear-panel input options, front-panel gain adjustment, and an integrated compressor/limiter. Its acoustically optimized enclosure provides fidelity comparable to larger drivers, while hemispherical dispersion supports both in-wall and flat-surface installations.

Ideal Use Cases

The DG-PSP1 is suited to installations that require a compact amplified loudspeaker with user-accessible level adjustment. Its balanced and unbalanced inputs allow it to accommodate +4 dBu nominal balanced signals or -10 dBV nominal unbalanced signals. The 81 dB maximum SPL and nominal 150 Hz to 20 kHz frequency range provide clear performance parameters for determining whether the model matches a specific listening environment.

• In-wall installations requiring a Decora-style enclosure
• Flat-surface placements that benefit from hemispherical dispersion
• Listening points requiring front-panel user level adjustment
• Systems using balanced +4 dBu or unbalanced -10 dBV audio

Why Choose This Model

The DG-PSP1 places the amplifier, loudspeaker, gain control, and input handling in one compact assembly. Its 2 W RMS amplifier includes a compressor/limiter that prevents clipping. This protection is especially useful when input levels vary, while the front-panel single-turn audio-taper gain control gives the user direct access to level adjustment.

The acoustically optimized Decora enclosure is engineered for fidelity comparable to larger drivers without requiring a large loudspeaker cabinet. The gray finish and compact 4.12-inch-high by 1.72-inch-wide front profile support installations where available surface area is limited.

Installation and Integration

Two rear-panel inputs support either a 30 kΩ balanced connection or a 10 kΩ unbalanced connection. Nominal input levels are +4 dBu balanced and -10 dBV unbalanced, with a maximum input level of +22 dBu. At maximum gain, the listed minimum input levels are 18 dBu for the balanced input and -19 dBV for the unbalanced input.

The loudspeaker requires ground-referenced 24 Vdc power, drawing 55 mA while idle and up to 100 mA maximum. The recommended power supplies are the PS-24AS for the USA and PS-24AX for international use. Overall dimensions are 4.12 inches high, 1.72 inches wide, and 2.64 inches deep, equivalent to 10.46 by 4.37 by 6.7 cm.

The specified ambient operating range is 0°C to 40°C maximum, with 20°C recommended. These requirements provide clear limits for selecting the mounting location, power source, and surrounding operating environment.

Performance Highlights

The DG-PSP1 delivers a maximum sound pressure level of 81 dB and a nominal frequency range of 150 Hz to 20 kHz. Its balanced input provides common-mode rejection greater than 50 dB from 50 Hz to 120 Hz. Hemispherical dispersion helps distribute sound when the loudspeaker is mounted in a wall or installed on a flat surface.

The compressor/limiter prevents amplifier clipping, while the audio-taper gain adjustment provides a practical response for front-panel level control. Together, these features support controlled operation within the stated input and output limits.

What Makes It Different

This model distinguishes itself through the combination of an ultra-compact Decora form factor, an integrated 2 W RMS amplifier, balanced and unbalanced input compatibility, and user-level adjustment on the front panel. It does not depend on a large driver enclosure to provide its specified fidelity. The acoustically optimized construction, clipping prevention, and hemispherical dispersion are integrated into a unit measuring only 2.64 inches deep.

Its clearly defined input impedances and nominal levels also simplify matching the loudspeaker to the connected audio source. Installers can select the 30 kΩ balanced input or 10 kΩ unbalanced input according to the available signal.

Final Assessment

The RDL DG-PSP1 is a focused solution for installations needing a gray, Decora-style active loudspeaker with accessible gain control. Its 2 W RMS amplification, compressor/limiter, dual input formats, 81 dB maximum SPL, and 150 Hz to 20 kHz nominal range are contained in a compact enclosure suitable for in-wall or flat-surface mounting. It is best evaluated against the stated output, frequency, power, and environmental requirements of the intended installation.