Line Level Distribution Amplifier - 1x3

  • Audio Distribution with up to 3 Outputs
  • Balanced or Unbalanced Input and Outputs
  • Bridge an Audio Line for Local Distribution
  • Distribution with Impedance Conversion
  • Distribution with Gain or Loss
  • Inputs and Outputs RF-Protected
  • 1×3 Mono or Use Two Units for Stereo
  • RDL® SupplyFlex™ Power Input Configuration
  • Recommended Power Supply ( Not Included )
    PS-24AS (USA)PS-24AX (International)


    The ST-DA3 gives you the advantages of an audio distribution amplifier PLUS you can put it where you need it. The ST-DA3 allows bridging of any audio line, adjusting the gain, and driving up to three high or low impedance, balanced or unbalanced loads. The ST-DA3's wideband circuitry produces the unsurpassed pure clarity, low-distortion and low-noise for which RDL products are known.

    The ST-DA3 features RDL's SupplyFlex power input configuration. The module will operate directly from floating 24 Vdc or bipolar dc power. If a jumper is connected between the PWR minus terminal and any module ground, the module power becomes ground-referenced.


    Input:20 kΩ balanced or unbalanced
    Input Signal:-15 dBV to +21 dBu (for +4 dBu output)
    Maximum Input Level:+24 dBu
    Outputs (3):150 Ω balanced or 75 Ω unbalanced

    Output Signal:
    Balanced:+4 dBu nominal balanced;
    Unbalanced:6 dB below balanced line level
    Maximum Output Level:+25 dBu
    Frequency Response:10 Hz to 100 kHz (± 0.05 dB)
    THD+N:< 0.002% (unity gain)
    IMD:< 0.003% (unity gain)
    Noise below +4 dBu:< -98 dB (unity gain)
    Headroom:> 20 dB (above +4 dBu)
    Gain:Unity ± 17 dB (adjustable)
    CMRR:> 60 dB (50 Hz to 120 Hz)
    Power Requirement:GROUND-REFERENCED or FLOATING, 24 Vdc @ 70 mA
    Ambient Operating Environment:0° C to 55° C
    Package Type:Cardboard Box
    Tariff code:8543.70.9860
    WEEE weight:0.145 lbs.
    Shipping Weight:0.2 lbs.
    Package Dimensions:2 x 2 x 4 in.

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