RU-VCA2A

RDL RU-VCA2A - Digitally Controlled Dual-Channel Audio Attenuator

The RDL RU-VCA2A is a professional studio-grade dual-channel audio attenuator designed for local and remote control of balanced or unbalanced line-level signals. It provides precise 0.5 dB step adjustments using noiseless zero-crossing digital attenuators, ensuring reliable, click-free operation in demanding AV environments.

The RU-VCA2A operates in two selectable modes: MOM (momentary) and 0-10 VDC. In MOM mode, audio level is controlled via momentary pushbuttons or pulses, with independently adjustable ramp-up and ramp-down times. In 0-10 VDC mode, level is controlled by voltage or a 10 kΩ potentiometer. Both modes offer two 0-10 VDC outputs for driving level displays or loudness equalizers.

Multiple remote control points are supported, and the unit can function as a MASTER to control additional RU-VCA2A or RU-VCA6A modules in SLAVE mode. Inputs and outputs can be wired as balanced or unbalanced, providing integration flexibility.

Functionality

• Precise 0.5 dB step audio level control
• Supports balanced and unbalanced signals
• MOM (momentary) and 0-10 VDC control modes
• Multiple remote control locations supported
• Compatible with RDL remote controls and OEM systems
• Control outputs for level displays and equalizers
• MASTER/SLAVE mode for system expansion

Features

• Device type: digital audio attenuator
• Number of channels: 2 (mono or stereo)
• Attenuation range: 96 dB (0.5 dB steps)
• Input/output types: balanced or unbalanced line-level
• Control modes: MOM (pushbuttons), 0-10 VDC, 10 kΩ potentiometer
• Ramp adjustment: independent up/down timing
• Control outputs: RAMP (for displays), EQ RAMP (for equalizers)
• Level indicator: 10-segment LED display
• Expandability: MASTER/SLAVE mode, data bus
• Connectors: detachable terminal blocks

The RDL RU-VCA2A is a versatile and precise solution for professional AV installations requiring smooth, noise-free audio level control with flexible integration options.