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  • Compact 3x1 Audio Mixer

    ST-UMX3

    3x1 Universal Audio Mixer - 3 microphone or line inputs x 1 microphone or line output

      • Audio Mixing with Up To Three Inputs
      • Switch-Selectable Mic or Line Inputs
      • Switch-Selectable Mic or Line Output
      • Add Additional Microphone or Line Level Inputs to an Existing Mixer
      • Combine Signals of Different Level, Impedance, or Balanced /Unbalanced Configuration
  • Voltage Controlled Amplifier

    ST-VCA3

    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

  • ST-VOX1

    Voice Operated Relay

    • Switching Controlled by Voice Signal
    • Switching from Mic or Line Level Signals
    • Precise Threshold Adjustment
    • DPDT Switching Contacts
    • Open-Collector SLAVE Output

  • ST-VP1

    Voice-Over / Paging Module - Manual

    • High-Quality Voice-Over Mixing
    • Noiseless Paging
    • Single Input Adapted for Paging or Voice-Over
    • Selectable Fade-Under or Hard-Cut
    • Adjustable Fade DEPTH and RATE
    • Soft Audio Switching
  • Automatic Ducking Module

    ST-VP2

    Automatic Ducking Module

      • 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
  • Dual-channel line-level preamplifier

    STA-1

    Dual Balanced/Unbalanced Line Amplifier -12 to 20 dB Gain

    • Up to 20 dB Gain in an Audio Line
    • Conversion from Balanced to Unbalanced
    • Conversion from Unbalanced to Balanced
    • Conversion from High to Low Impedance
    • Conversion from Low to High Impedance
    • Bridge an Audio Line Feed
    • Precisely Match Audio Levels

  • STA-1M

    Audio Line Amplifier - Mono: -14 to 14 dB Gain

    • Single-Channel Audio Line Amplifier
    • Balanced or Unbalanced Inputs and Outputs
    • Bridge a Line to Avoid Loading
    • High to Low Impedance Conversion
    • Low to High Impedance Conversion
    • Instrumentation Input to Isolate Ground Loops
    • Precisely Match Audio Levels
    • RDL® SupplyFlex™ Power Input Configuration

  • STA-2A

    Dual High Gain Line Amplifiers

    • Up to 24 dB Gain in Audio Lines
    • Conversion between Unbalanced and Balanced
    • Conversion between High and Low Impedance
    • Low-Impedance, High-Current Line Drivers
    • Dual-Channel Line-Level Preamplifiers
    • High Gain, High Output, High Performance
    • RDL® SupplyFlex™ Power Input Configuration

  • STD 150

    Passive Audio Divider/Combiner - 150 Ω

      • 150 Ω Operation
      • Combine Audio Signals to a Single Output
      • Filter RF from an Audio Line
      • Combine Stereo Signals
      • Feed a Mono Signal to Stereo Inputs
      • Combine Multiple Mics to a Single Amp
      • Compactness of RDL STICK-ONs®

  • STD 600

    Passive Audio Divider/Combiner - 600 Ω

      • 600 Ω Operation
      • Combine Audio Signals to a Single Output
      • Filter RF from an Audio Line
      • Combine Stereo Signals
      • Feed a Mono Signal to Stereo Inputs
      • Combine Multiple Mics to a Single Amp
      • Compactness of RDL STICK-ONs®
  • Audio Divider/Combiner

    STD-10K

    Passive Audio Divider/Combiner - 10 kΩ

    • 10 kΩ Operation
    • Combine Audio Signals to a Single Output
    • Filter RF from an Audio Line
    • Combine Stereo Signals
    • Feed a Mono Signal to Stereo Inputs
    • Combine Multiple Mics to a Single Amp
    • Compactness of RDL STICK-ONs®
  • A compact high quality microphone preamplifier

    STM-1

    Microphone Preamplifier - 50 dB Gain

    • High or Low Impedance Input Mic Preamp
    • Fixed 50 dB Gain for Consistency
    • Balanced or Unbalanced Output
    • Phantom Capability
    • RF-Filtered Inputs and Outputs
    • Excellent Performance
    • STICK-ON® Convenience
  • Microphone Preamplifier

    STM-2

    Adjustable Gain Microphone Preamplifier - 35 to 65 dB Gain

    • Low-Noise Mic Preamp
    • Adjustable Output Level
    • High or Low Impedance Mic Inputs
    • Mic Input to 2 Line Outputs
    • Two Balanced or Unbalanced Outputs
    • Phantom Capability
    • RF-Filtered Inputs

  • STM-2X

    Switched Microphone Preamplifier - 35 to 65 dB Gain

    • Quiet Switching of Condenser Microphone
    • Remote Microphone Soft-Switching
    • Switch a Mic-Level Source to a Mic or Line Level Output
    • Remote Toggle Switch or Push-to-Talk Button
    • Adjustable Preset Gain on Microphone Source

  • STM-3

    High Gain Microphone Preamplifier - 45 to 75 dB Gain

    • Low-Noise, High-Gain, Mic Preamp
    • Adjustable Output Levels
    • High or Low Impedance Mic Inputs
    • Mic Input to Line Outputs
    • Two Balanced or Unbalanced Outputs
    • Phantom Capability
    • RF-Filtered Inputs

  • STM-DA3

    Microphone Level Distribution Amplifier - 1x3

    • Feed 1 Microphone to 3 Microphone Inputs
    • Electrical and Audio Isolation
    • Studio Quality Low-Noise, Low-Distortion Performance
    • Excellent Phase Response
    • Versatility of STICK-ON® Compactness
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