RDL®

ST-DA3

Line Level Distribution Amplifier - 1x3

SKU: ST-DA3
  • 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)
Category:

Description

The ST-DA3 allows the bridging of any audio line, adjustment of the gain, and driving up to three outputs. Each output is driven by a separate amplifier, and is isolated from both the input and from the other outputs. The circuit design allows the input to accept either balanced or unbalanced signals, of either high or low impedance; and each output may be connected either balanced or unbalanced. The ST-DA3 features wideband circuitry that produces the unsurpassed pure clarity for which RDL products are known. Some features are:

  • Functions as an electronic transformer

  • Provides isolation, gain, and three outputs

  • Wideband amplifiers produce impeccable audio

  • Operates from ground-referenced, floating or bipolar power supply

  • Ultra-low distortion

  • Ultra-low noise

  • Excellent phase response

  • Gain adjustment 17 dB above or below unity

  • Ample headroom at operating level

  • Recessed multi-turn audio taper gain trimmer for precise control

  • Input and outputs are RF protected

  • Full operation in either high or low impedance circuits

  • Outputs are short circuit protected

  • Positive connections via barrier block


Wherever an audio distribution amplifier is needed, the ST-DA3 is the ideal choice. Use the ST-DA3 individually, or combine it with other RDL products as part of a complete audio/video system.

Specifications

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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Dimensions

ST-DA3

Downloads

DocumentsFormat
DatasheetPDF
CAD FilesUnitsFormat
Engineering Functional BlockAmericanDXF
Panel Diagram - EndAmericanDXF
Panel Diagram - FrontAmericanDXF
Panel Diagram - EndMetricDXF
Panel Diagram - FrontMetricDXF
High Res ImagesFormat
st-da3.zipTIF
Declaration of Conformity
Download

Diagrams

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