RDL ST-VCA3 Stick On Series Voltage Controlled Amplifier, 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, Dimensions 0.70" x 3.00" x 1.60", Shipping Dimensions 2.00" x 2.00" x 4.00", Weight 0.15 lbs, Shipping Weight 0.20 lbs, UPC 813721012340

General Information
Manufacturer	RDL
Manufacturer Part Number	ST-VCA3
Product Name	Stick On Series Voltage Controlled Amplifier
UPC Code	813721012340
Overview
The 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 level. For installations where it is preferred to keep the audio localized in the rack, audio controls are extended outside the rack from the ST-VCA3 Many installations benefit from avoiding long term potentiometer wear from audio running through the potentiometer. An 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 ST-VCA3 The 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 ST-VCA3 may serve as a remote controlled microphone preamplifier
Features
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
Pictures
Specifications
Input	Mic: 200 Ohms balanced; 5 kOhms unbalanced Line: 30 kOhms bal. bridging or unbalanced
Input Levels (for +4 dBu output)	Mic: −44 dBu to −60 dBu (150 Ohms source) Line: -18 dBu (-20 dBV) to +4 dBu
Output Signal (normal rated)	+4 dBu, 150 Ohms balanced
Headroom	18 dB
THD+N	Mic: Less than 0.05 percent Line: Less than0.025 percent (unity gain); 0.025 percent typical at 15 dB attenuation
Frequency Response	Mic: 30 Hz to 20 kHz (More or less1 dB) Line: 10 Hz to 20 kHz (More or less0.1 dB)
Noise	Mic: Less than -71 dB below +4 dBu output (150 Ohms source; 50 dB gain) Line: Less than-78 dB below +4 dBu output (maximum gain)
Control Input	0 to 10 Vdc or 0 to 10 kOhms Linear
Attenuation Range	0 to 90 dB (Greater than90 dB at 0 Vdc control)
Ambient Operating Environment	0C to 55C
Power Requirement	GROUND-REFERENCED or FLOATING 24 Vdc at 50 mA
Dimensions	0.70" x 3.00" x 1.60"
Shipping Dimensions	2.00" x 2.00" x 4.00"
Weight	0.15 lbs
Shipping Weight	0.20 lbs

A-20170710-1505-210-L

*This item is BRAND NEW - not refurbished. It comes with all manufacturer supplied accessories, and full manufacturer's USA warranty.