Remote Channel Selector-4 Channels-controls RU-ASX4D/R-stainless steel -Custom Labeled (See Part # ZCST-LBL for setup charge)

Ideal Use Cases

Designed as a remote selection point for RU-ASX4D/R switching installations, the DS-RCS4C gives operators four clearly defined channel choices through a stainless steel, custom-labeled interface. It is suited to RDL systems that route any of four stereo line-level sources to one stereo output, including rooms where selection needs to occur away from the main switching unit. Because the RU-ASX4D supports multiple switching control points, this selector can serve in workflows that combine local control with remote source choice. Custom labeling lets the four selections follow project-specific source names, while the listing identifies ZCST-LBL as the associated setup charge reference.

Why Choose This Model

The DS-RCS4C combines four-channel remote selection, stainless steel construction, and labeling tailored to the installation. That combination is useful when generic channel numbering would be less clear than names that match the connected sources. The controlled RU-ASX4D platform supports local or remote switching, gain trim for each source, balanced or unbalanced audio, and an open-collector output for the selected input. RDL compatibility data for the RU-ASX4D also names the D-RCS4 and D-RC4M remote controls. The source data assigns the audio connections and switching performance to the RU-ASX4D host, while this listing identifies the DS-RCS4C as the custom-labeled remote channel selector.

Installation and Integration

Plan the DS-RCS4C as a control point for the associated RU-ASX4D/R system. The RU-ASX4D host accepts four stereo line-level inputs and provides one stereo line-level output through detachable terminal blocks. Its audio connections may be balanced or unbalanced, and rear-panel trimmers provide gain adjustment for each source. The host also uses a detachable terminal block for power and requires 24 Vdc at 150 mA with a ground-referenced supply. Recommended supplies are listed as PS-24AS for USA use and PS-24AX for international use. The specified operating environment for the RU-ASX4D is 0° C to 55° C. Connection details specific to the DS-RCS4C are not included in the supplied data, so integration should follow the applicable system documentation. The custom labeling should be coordinated with the four intended source names, with the ZCST-LBL setup charge included in project planning.

Performance Highlights

The following audio figures describe the controlled RU-ASX4D switching unit rather than the remote selector itself. The host delivers a frequency response of 10 Hz to 20 kHz within ±0.2 dB and THD+N below 0.01% from 20 Hz to 20 kHz. Input impedance is greater than 20 kΩ balanced and greater than 10 kΩ unbalanced, with a maximum input level of +25 dBu. The listed adjustable input range for a +4 dBu output is 15 dBV to +8 dBu. Headroom above +4 dBu exceeds 20 dB at unity gain, while common-mode rejection exceeds 60 dB from 50 Hz to 120 Hz.

• Noise below +4 dBu: less than -85 dB with an input selected and less than -95 dB with no input selected
• Off attenuation: greater than 85 dB at 1 kHz and greater than 70 dB at 20 kHz
• Crosstalk: less than -85 dB at 1 kHz and less than -65 dB at 20 kHz
• Output impedance: 150 Ω balanced or 75 Ω unbalanced
• Output level: +4 dBu balanced, with the unbalanced output 6 dB below the balanced level

What Makes It Different

The defining distinction in this listing is the combination of a dedicated four-channel remote selector, stainless steel construction, and custom labeling. It places project-specific identification directly at the selection point while working with an RU-ASX4D/R control architecture. At the host, four source-selection control inputs operate at 1 mA pulled to ground, while the SEL input operates at 1 mA pulled to +15 Vdc. Five control outputs are rated at 25 mA and use open-collector connections to ground. The RU-ASX4D also provides four momentary source buttons, a latching LOCAL/REMOTE button, selected-channel indication, power indication, LOCAL/REMOTE indication, and dual-LED left and right VU metering.

Final Assessment

The DS-RCS4C is a focused choice for installations requiring remote selection among four channels on an RU-ASX4D/R system, particularly when a stainless steel interface and source-specific labeling are required. Its role should be evaluated as part of the complete switching system: the remote provides the operator selection point, while the associated RU-ASX4D supplies the stereo audio routing, gain adjustment, metering, and published audio performance. Include part number ZCST-LBL when accounting for the custom-label setup charge.