Description
The D-SFRC8 Room Control Station is an in-wall SourceFlex listening station that provides local source selection and volume control for up to eight audio sources. It presents a compact, numeric LED display that indicates the active source and includes front-panel controls for intuitive operation. The unit integrates a line-level output and an on-board Class D amplifier to drive a local speaker when required.
Key features include pushbutton source selection, a single-turn front-panel volume control, and two rear line-level outputs – balanced and unbalanced. A rear-panel installer switch configures the balanced output as fixed +4 dBu or variable under front-panel control while the unbalanced output is 12 dB lower. The built-in Class D amplifier provides up to 3.5 W RMS into 8 ohms or 6.5 W RMS into 4 ohms and includes thermal and short-circuit protection.
Performance specifications cover wideband audio response and low distortion: 20 Hz to 20 kHz at line level and 40 Hz to 20 kHz at speaker output, THD+N below 0.1% at line level and below 0.25% at the speaker output, and noise below -85 dB at line level. Line outputs are nominally +4 dBu balanced and -10 dBV unbalanced. Power is supplied from a SourceFlex controller at 24 Vdc with measured idle and operating currents specified for typical voice and music levels.
Connectivity is via a 10-position detachable terminal block on the rear panel for audio, speaker and control wiring. The speaker output and line outputs are accessible on the detachable block for straightforward wiring to amplifiers or local speakers. The D-SFRC8 is compatible with RDL wall plates and mounts in a standard US single-gang electrical box or RDL WB-1U for tidy in-wall installation.
Typical applications include office distributed sound systems providing background music and paging, dedicated listening stations in multiroom environments, and small conference or meeting spaces requiring local source switching and volume control. Its numeric display and pushbutton selection simplify end-user operation while the onboard amplifier can drive a single local speaker where appropriate. The unit is optimized for voice and music clarity in commercial audio installations.
Installation is straightforward – mount in a single-gang box, connect the detachable terminal block, and set the rear-panel switch for fixed or variable line output as required. The high-efficiency Class D design produces negligible heat and simplifies in-wall installation without additional ventilation. Robust protection circuits and RDL compatibility make the D-SFRC8 a practical choice for integrators seeking simple, reliable room-level audio control.