RDL RU-VCA2A 2- Channel Digitally Controlled Attenuator

RDL RU-VCA2A 2- Channel Digitally Controlled Attenuator

RDL RU-VCA2A 2- Channel Digitally Controlled Attenuator


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RDL RU-VCA2A overview

  • 1Description

The RDL RU-VCA2A 2-Channel Digitally Controlled Attenuator is a full-featured, studio-quality, dual-channel audio attenuator module for local and/or remote control of balanced or unbalanced line-level sources. This module can be remote controlled from a single or multiple locations. Rear-panel terminals provide flexible control options using a variety of remote controls or OEM equipment.

Audio levels are controlled in 0.5 dB steps using noiseless, zero-crossing digital attenuators for optimum reliability, precise tracking, and long-term, click-free service. Exceptional wide-band, low-noise performance makes this attenuator suited to level adjustment in demanding applications. Rear-panel inputs and outputs may each be wired balanced or unbalanced. The RU-VCA2A Attenuator powers up in one of 2 operating modes (MOM and 0 to 10VDC modes) set by a rear-panel switch.

Local or remote audio level control
Mono or stereo attenuation
Noiseless zero-crossing adjustment steps
96 dB attenuation range in 0.5 dB steps
Data bus provides adjustment of multiple modules
Multiple remote control locations possible
Precise level tracking on each channel
Balanced or unbalanced line inputs and outputs
Adjustable ramp up and down rates
Controllable using various RDL remote controls
Selectable Level Control Options: Push-buttons (Internal or External), momentary pulses (external/rotary encoder)
0 to 10VDC or 10kΩ potentiometer
Selectable power-up return to PRESET or LAST Level
Selectable MASTER/SLAVE mode for control expansion
UPC: 813721013453
In the Box
RDL RU-VCA2A 2- Channel Digitally Controlled Attenuator
  • Limited 3-Year Warranty on Parts & Labor
  • Note: This warranty applies to the period of three years from the date of shipment, except for component parts or products purchased from other sources and supplied by RDL.

    Table of Contents
    • 1Description

    RDL RU-VCA2A specs

    Input 10 kΩ balanced bridging, or unbalanced, line level
    Frequency Response 10 Hz to 50 kHz (+/- 0.5 dB)
    THD + N < 0.005% (20 Hz to 20 kHz)
    Gain Adjustable from unity to <-96 dB
    Size Step Size: 0.5 dB
    Headroom > 18 dB (above +4 dBu)
    Residual Noise < -90 dB (referred to +4 dBu at unity gain)
    CMRR <-65 dB (50 to 150 Hz)
    Crosstalk <-95 dB (1 kHz, typ.)
    < -85 dB (20 Hz to 5 kHz); < -75 dB (5 kHz to 20 kHz)
    Ramp Times 0.5 second delay; then: 3 seconds to 10 seconds

    Up and down times individually adjustable on front panel

    Indicators 10
    Front-panel LEDs indicating relative audio level (8), Maximum condition (green), Minimum condition (red)
    Audio Output 2
    150 Ω balanced (may be connected unbalanced)
    Ramp Output 0 to 10 VDC, (Ground-referenced) Note: Not intended to drive additional VCA 0-10V inputs
    EQ Ramp Output 0 to 10 VDC, (Ground-referenced)

    Dc taper intended only to drive RDL loudness EQ (ST-LEQ1)

    Power Requirement 24 VDC @ 120 mA, ground-referenced
    Operating Environment Ambient Operating Environment: 32 to 122⁰F (0 to 50° C)
    Dimensions (W x H x D) Case Dimensions: 5.7 x 1.6 x 3.5" (14.6 x 4.1 x 9.0 cm) D
    3.9" (9.9 cm) D with connectors
    Packaging Info
    Package Weight 1.35 lb
    Box Dimensions (LxWxH) 6.772 x 6.221 x 2.756"

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