Decora-Style Active Loudspeaker-Gray-Installer Level Adjust

Ideal Use Cases

The RDL DG-PSP1F is a gray Decora-style active loudspeaker for installations requiring amplified audio in an ultra-compact wall or flat-surface format. Its enclosure measures 4.12 inches high, 1.72 inches wide, and 2.64 inches deep, making it suitable where available installation space is limited. Balanced +4 dBu and unbalanced -10 dBV rear-panel inputs accommodate either of the two specified nominal signal levels. The installer-set gain is useful when the operating level needs to be established during system setup. Hemispherical dispersion provides broad audio distribution from the selected mounting position.

Why Choose This Model

This model combines a 2 W RMS audio amplifier, input flexibility, level adjustment, and loudspeaker reproduction in one compact Decora enclosure. Its compressor/limiter prevents amplifier clipping, while the acoustically optimized enclosure is specified to deliver fidelity comparable to larger drivers. The two inputs support a 30 kΩ balanced connection or a 10 kΩ unbalanced connection. A maximum input level of +22 dBu provides additional input-level capacity, and the single-turn audio-taper gain adjustment lets the installer establish the appropriate gain for the connected source.

Installation and Integration

The DG-PSP1F can be installed in a wall or mounted on a flat surface. Audio connections are located on the rear panel, with a nominal +4 dBu level for the balanced input and a nominal -10 dBV level for the unbalanced input. At maximum gain, the listed minimum input levels are 18 dBu for the balanced input and -19 dBV for the unbalanced input. Power requirements are 24 Vdc at 55 mA while idle and 100 mA maximum, using a ground-referenced supply. The recommended power supplies are the PS-24AS for the USA and the PS-24AX for international use. The specified operating environment is 0°C to 40°C maximum, with 20°C recommended.

Performance Highlights

The integrated amplifier is rated at 2 W RMS, and the loudspeaker produces a maximum SPL of 81 dB. Its nominal frequency range extends from 150 Hz to 20 kHz, covering the stated operating bandwidth within its compact form. A compressor/limiter is incorporated to prevent clipping when signal conditions approach the amplifier limit. Common-mode rejection is specified at greater than 50 dB from 50 Hz to 120 Hz for the balanced signal path. The acoustically optimized Decora enclosure, comparison to the fidelity of larger drivers, and hemispherical dispersion are the principal acoustic characteristics identified for this model.

What Makes It Different

The DG-PSP1F brings active amplification into a narrow Decora-style enclosure while retaining separate balanced and unbalanced input options. This combination allows the same loudspeaker to accept professional +4 dBu balanced audio or -10 dBV unbalanced audio without changing models. Its gain control is specifically designated for installer adjustment and uses a single-turn audio taper. The compressor/limiter adds clipping protection within the amplifier stage, while the enclosure is acoustically optimized for the installed loudspeaker. These elements distinguish the model through compact integration rather than through a separate amplifier and loudspeaker arrangement.

Final Assessment

The RDL DG-PSP1F is a focused solution for installations requiring a gray, compact active loudspeaker with an installer-established level. Its defining specifications are the 2 W RMS amplifier, 81 dB maximum SPL, nominal 150 Hz to 20 kHz frequency range, dual balanced and unbalanced inputs, and ground-referenced 24 Vdc operation. In-wall and flat-surface mounting provide two stated installation approaches, while hemispherical dispersion supports broad coverage from the enclosure. Selection should account for its published output level, frequency range, input standards, physical dimensions, and external 24 Vdc power requirement.