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RDL RU-VCA6A  Digitally Controlled Six Channel Audio Attenuator
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    RDL RU-VCA6A Digitally Controlled Six Channel Audio Attenuator

    Manufacturer: Radio Design Labs

    Item #: RDL-RU-VCA6A   •   MFG #: RU-VCA6A


    List Price:$684.90
    Our Price:$442.45

    free ship
    Availability: Usually ships in 3-10 business days
    This item is currently out of stock and will ship the minute we receive it – normally 3-10 business days. Need it sooner? Call 800-522-2025 and we'll make it happen,or email Customer Service for expedited delivery options. Certain Non-Stock Items Valued over $50.00 may Ship FREE UPS GROUND in the Continental US. Multiple quantities of the same non-Stock Item Valued below $50.00 may be ordered to meet the $50 minimum order requirement to qualify for Free UPS Ground Freight. This offer does not apply to certain freight-intensive or hazardous items. Certain restrictions may apply.



      Required Accessories

      The RU-VCA6A is a full-featured studio-quality dual-channel audio attenuator module for local and/or remote control of balanced or unbalanced line-level sources. The RU-VCA6A has six audio channels for level control of surround sound (5.1) or six individual analog audio channels. Each module can be remote controlled from a single or multiple locations. Rear-panel terminals provide flexible control options using a variety of RDL 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 the RU VCA6A suited to level adjustment in the most demanding applications. Rear-panel inputs and outputs may each be wired balanced or unbalanced.

      The RU-VCA6A powers up in one of two operating modes set by a rear-panel switch.

      • Features

        • Local or Remote Audio Level Control
        • Six Channel / Surround 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/Outputs
        • Adjustable Ramp Up/Down Rates
        • Controllable Using Various RDL Remote Controls
        • Selectable Level Control Options:
        • Pushbuttons (Internal or External)
        • Momentary Pulses (External/Rotary Encoder)
        • 0 to10 Vdc or 10 kO Potentiometer
        • Selectable Power-Up Return to PRESET or LAST Level
        • Selectable MASTER/SLAVE Mode for Control Expansion
      • Specifications

        • Inputs (2, RU-VCA2A; 6, RU-VCA6A): >10 kŸ€ 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 <­V96 dB
        • 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), MAX condition (green), MIN condition (red)
        • Audio Output (2, RU-VCA2A; 6, RU-VCA6A): 150 Ÿ€ 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) Note: dc taper intended only to drive RDL Loudness EQ (ST-LEQ1)
        • Power Requirement: 24 Vdc @ 120 mA, Ground-referenced (RU-VCA2A); 24 Vdc @ 200 mA, Ground-referenced (RU-VCA6A)
        • Ambient Operating Environment: 0›X C to 50›X C
        • Case Dimensions: 5.75­" (14.6 cm) W x 1.65" (4.18 cm) H x 3.54­" (9.0 cm) D;3.9" (9.9 cm) D with connectors

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