RDL RU-VCA6A Digitally Controlled Six Channel Audio Attenuator

$465.55
Unit price per

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 k?? 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
Step Size: 0.5 dB
Headroom: > 18 dB (above +4 dBu)
Residual Noise: < -90 dB (referred to +4 dBu at unity gain)
CMRR:
Crosstalk:
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 ?? 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