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

The DB-RCS4C is a black, custom-labeled remote channel selector for choosing among four channels on an RU-ASX4D/R audio switching system. It gives the system a dedicated control point while the associated switcher performs the stereo line-level routing. The RU-ASX4D platform is designed for local or remote switching and supports multiple switching control points. Custom labeling is part of this product configuration; the supplied title specifies a separate setup charge under part number ZCST-LBL.

Ideal Use Cases

This selector is suited to installations where a user needs access to four source choices away from the main RU-ASX4D/R, or where channel names should reflect the terminology used in the finished system. It can serve as a focused selection point while the main unit manages four stereo inputs and one stereo output. The black finish and custom labeling allow the control to coordinate with a defined panel layout. It is specifically tied to the RU-ASX4D/R control application described in the product title.

Why Choose This Model

The value of this model is its narrow, clearly specified role: four-channel remote selection with custom channel identification. The controlled RU-ASX4D offers gain trim on every source, balanced or unbalanced audio connections, and local or remote operation. At the main unit, four momentary source buttons, a latching LOCAL/REMOTE button, selected-channel indicators, and dual-LED left and right VU meters provide direct status and level information. The platform’s documented compatible remote controls are the D-RC4M and D-RCS4.

Installation and Integration

Plan the DB-RCS4C as the remote selection component of an RU-ASX4D/R system. Establish the four custom channel labels before ordering and include the ZCST-LBL setup charge noted in the product title. On the RU-ASX4D side, all four stereo line inputs and the stereo line output connect through detachable terminal blocks and may be wired balanced or unbalanced. The switcher provides five control inputs: four 1 mA source-selection inputs pulled to ground and one 1 mA SEL input pulled to +15 Vdc. Its five control outputs are rated at 25 mA and operate open-collector to ground. Power for the RU-ASX4D is 24 Vdc at 150 mA, ground-referenced, through a detachable terminal block. The supplied data lists the PS-24AS for the USA and PS-24AX for international use. These power and audio specifications describe the controlled switcher; selector-specific power, dimensions, and wiring details were not provided.

Performance Highlights

System audio performance comes from the RU-ASX4D/R switcher rather than the remote control point. Its specified frequency response is 10 Hz to 20 kHz at ±0.2 dB, with THD+N below 0.01% from 20 Hz to 20 kHz. Maximum input level is +25 dBu, and headroom above +4 dBu is greater than 20 dB at unity gain. The balanced output level is +4 dBu; the unbalanced output is 6 dB lower. Noise is below -85 dB with an input selected and below -95 dB when none is selected. Specified off attenuation exceeds 85 dB at 1 kHz and 70 dB at 20 kHz, while crosstalk is below -85 dB at 1 kHz and below -65 dB at 20 kHz. Common-mode rejection is greater than 60 dB from 50 Hz to 120 Hz.

What Makes It Different

Unlike an unlabeled generic control point, this configuration combines a defined four-channel role, black finish, and labels prepared for the installation. The companion switcher adds an open-collector output for the selected input, allowing selected-source state to be represented through its control outputs. Front-panel indication on the RU includes power, four selected-channel indicators, two LOCAL/REMOTE indicators, and left and right dual-LED VU meters; the rear panel also has left and right dual-LED VU meters. This separates user-facing source selection from the main audio routing while preserving the RU platform’s local and remote operating options.

Final Assessment

The DB-RCS4C is a purpose-specific choice when an RU-ASX4D/R system needs four-channel selection from a black, custom-labeled remote point. Its benefit is operational clarity: the control presents the required source choices, while the RU switcher provides the documented routing, gain adjustment, metering, and audio performance. Before ordering, finalize the channel wording and account for the ZCST-LBL setup charge. Use the RU-ASX4D/R project documentation to confirm the complete control wiring and keep selector-specific requirements separate from the switcher’s published electrical specifications.