RDL ST-VCA3 : Voltage Controlled Amplifier

The RDL ST-VCA3 is used in applications requiring smooth audio level control from a remote control panel, potentiometer or dc voltage (0 to 10 V). Installation in series with the audio input of a power amplifier allows remote control of that amplifier’s level. For installations where it is preferred to keep the audio localized in the rack, audio controls are extended outside the rack from the RDL ST-VCA3. Many installations benefit from avoiding long-term potentiometer wear from audio running through the potentiometer. An RDL ST-VCA3 with external dc control provides virtual immunity from scratchy audio. Audio/video system control units often provide 0 to 10 Vdc control outputs that can directly control audio levels using an RDL ST-VCA3. The RDL ST-VCA3 is primarily intended for line-level attenuation; a high quality utility microphone preamplifier is included in the module. If remote control of a microphone preamplifier is desired, such as a wall mounted level control for a microphone jack, the RDL ST-VCA3 may serve as a remote controlled microphone preamplifier.

RDL ST-VCA3 - FEATURES / ADVANTAGES:

• Audio Level Control from a DC Voltage
• Audio Level Remote Control
• Two Wire with Shield or Three Wire Control
• VCA with Microphone or Line Level Input
• VCA with Line-Level Output
• VCA with LED Metering of Operating Level

RDL ST-VCA3 - INCLUDES:

• (1) ST-VCA3 Voltage Controlled Amplifier
• Operating instructions