Decora-Style Active Loudspeaker-Black-Installer Level Adjust

Ideal Use Cases

The RDL DB-PSP1F is a black Decora-style active loudspeaker designed for installations where audio performance must fit within an ultra-compact footprint. It can be mounted in a wall or on a flat surface, making it suitable for systems that require a permanently installed speaker without a larger external enclosure. Rear-panel balanced and unbalanced inputs support equipment operating at either +4 dBu or -10 dBV nominal levels. Installer-set gain is particularly useful when the desired playback level should be established during system commissioning and left unchanged during normal operation.

Why Choose This Model

A built-in 2-watt RMS audio amplifier eliminates the need to pair the loudspeaker with a separate local amplifier. An integrated compressor/limiter helps prevent clipping, providing protection when incoming signal levels rise. The acoustically optimized Decora enclosure is engineered to deliver fidelity comparable to larger drivers despite its compact dimensions. Hemispherical dispersion helps distribute sound from an in-wall or flat-surface mounting position, while the black finish supports installations requiring this specific appearance.

Installation and Integration

The DB-PSP1F provides two rear-panel input options. Its balanced input has a 30 kΩ impedance and accepts a nominal +4 dBu signal, while the 10 kΩ unbalanced input is designed for a nominal -10 dBV signal. Maximum input level is +22 dBu. A single-turn audio-taper gain adjustment allows the installer to set the operating level during installation.

Power requirements are 24 Vdc at 55 mA while idle and 100 mA maximum, with a ground-referenced supply. The recommended power supplies are the PS-24AS for the USA and PS-24AX for international use. The enclosure 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 amplified speaker to be integrated where available wall or surface space is limited.

The specified ambient operating range is 0°C to 40°C maximum, with 20°C recommended. Observing these environmental and power requirements provides a clear basis for planning the mounting location, power connection, input wiring, and final level adjustment.

Performance Highlights

The loudspeaker delivers a nominal frequency range of 150 Hz to 20 kHz and a maximum sound pressure level of 81 dB. Its stated common-mode rejection ratio is greater than 50 dB from 50 Hz to 120 Hz, an important specification when using the balanced input. The combination of an active 2-watt RMS amplifier, optimized enclosure, and hemispherical dispersion addresses both compact installation and useful sound distribution. The compressor/limiter further supports consistent operation by preventing amplifier clipping.

What Makes It Different

The DB-PSP1F combines the enclosure, driver, amplifier, level control, balanced input, and unbalanced input in one Decora-style unit. This integrated construction reduces the number of separate components required at the loudspeaker location. Its gain control is intentionally assigned to the installer, distinguishing it from speakers intended for frequent user adjustment. Compatibility with both +4 dBu balanced and -10 dBV unbalanced nominal signals also gives the installer two defined integration paths without requiring an external level specification to be assumed.

Final Assessment

The RDL DB-PSP1F is a focused solution for compact installed-audio applications requiring a black Decora-style active loudspeaker. Its 2-watt RMS amplifier, clipping-preventing compressor/limiter, dual input formats, installer-set gain, and in-wall or flat-surface mounting capability are packaged in an enclosure only 4.12 inches high. With an 81 dB maximum SPL and nominal response from 150 Hz to 20 kHz, its published performance limits are clearly defined for matching the loudspeaker to the intended location and listening requirements.