Continue Shopping View Cart
Markertek - The Future of Broadcast Supply

Call 800-522-2025
M-F 8:30am - 7pm EST

Free Shipping Promo Box
details

FREE SHIPPING No Minimum Order!

SHOP MARKERTEK EVERYDAY for all of your needs. Free shipping on almost every order placed on our website.
Special order & oversized freight intensive items ship at an additional cost. Continental US orders only.

Fast Economical International Shipping
Markertek makes it EASY for our international customers to get their orders!

At check-out you can view our very affordable international shipping rates that are ALL-INCLUSIVE with your GUARANTEED LANDED COST and NO SURPRISE FEES!

*Economy International Shipping delivery time is approximately 7-14 days. Economy International Shipping is available to select countries. Not all products are eligible.

Secure LoginClose X

Returning Markertek Customers

New Markertek Customers





Why Create an Account?

Creating a Markertek account now will save you time on future orders. You'll have full access to your order history and a personalized shopping experience.

 
RDL ST-VP2 Automatic Ducking Module
     
    Questions? Ask a Markertek Expert:
    800-522-2025 Email

    RDL ST-VP2 Automatic Ducking Module

    Manufacturer: Radio Design Labs

    Item #: ST-VP2   •   MFG #: ST-VP2

     
     

    Share!

     
     
     

    Required Accessories

    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.

    Required Power Supply RDL PS24V Sold Separately

     
    • Features

      • Fully AUTOMATIC Voice‑Over Mixing
      • Noiseless Paging
      • Adjustable Fade Depth
      • Setting to Fade Music Fully Off
      • Adjustable Recovery Rate
      • Built‑in AGC Compressor on Music Input
       
    • Specifications

      • Inputs (2): Balanced line level (or unbalanced)
      • Input Impedance: 20 kΩ
      • Input Signal Range: ‑20 dBu to +18 dBu
      • Output: 0 dBu balanced (into 600 Ω)
      • Gain: Adjustable using multiturn potentiometer
      • THD+N: < 0.02% (20 Hz to 20 kHz, no compression)
      • Frequency Response: 25 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
      • Power Requirement: GROUND‑REFERENCED, 24 to 33 Vdc @ 35 mA
      • Ambient Operating Environment: 0° C to 55° C
       
     
     

    Add Accessories for your ST-VP2: