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Automatic Ducking Module - Radio Design Labs ST-VP2

SKU: RDLST-VP2
Manufacturer: RDL
Not Rated Yet
MSRP: $299.68
Price: $224.76
Save $74.92 off MSRP
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Automatic Ducking Module

The ST-VP2 can be wired into any line-level input of a paging amplifier. A line-level music source may be provided from a receiver, satellite decoder, tape or CD source. A line-level voice source may be provided from a telephone paging system at line level, or from a microphone which has been preamplified up to line level (See RDL STM-1, STM-2, STM-2X, STM-3, STM-LDA3 Microphone Preamplifiers). When a page is initiated, the module automatically senses the audio at the input, turns the music down to the desired level, and automatically fades the music back up after the page is completed. The VOICE input is completely turned off by the module until the next paging signal is received. Setup is made easy by two LED indicators at the front of the module. LEDs are provided to show correct operating level for each of the two inputs.

The music input provides an AGC/Compressor which transparently produces a consistent audio level for varying music sources and protects against excessive music levels which would otherwise mask the voice signal during voice-overs.

Specifications

Inputs (2):
Balanced line level (or unbalanced)

Input Impedance:
20 kΩ

Input Signal Range:
-20 dBu to +18 dBu

Output:
+4 dBu balanced (nominal)

Gain:
Adjustable using multiturn potentiometer

THD+N:
< 0.01% (20 Hz to 20 kHz, no compression)

Frequency Response:
20 Hz to 20 kHz (± 1 dB)

Noise:
< -70 dB

Indicators (2):
1 LED indicating proper music level 1 LED indicating proper voice level

AGC/Compressor:
18 dB range; 6 dB compression at normal input level

Attack Time:
25 ms

Release Time:
2.5 seconds

Voice Trigger Level:
24 dB below operating level

Music Fade Depth:
Adjustable 0 dB to −25 dB, or off

Music Recovery Delay:
Adjustable 2 seconds to 4 seconds

Ambient Operating Environment:
0° C to 55° C

Power Requirement:
GROUND-REFERENCED, 24 Vdc @ 35 mA

Package Type:
Cardboard Box

Package Dimensions:
2 x 2 x 4 in.

Shipping Weight:
0.2 lbs.

WEEE weight:
0.145 lbs.

Tariff code:
8543.70.9960


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