Audio Routing Switcher - 1x2

  • Routing of a Line-Level Source
  • Audio Switched to One of Two Destinations
  • Silent Audio Switching
  • Balanced or Unbalanced Routing
  • Switching by Open-Collector Logic
  • Recommended Power Supply ( Not Included )
    PS-24AS (USA)PS-24AX (International)


    The ST-RX2 has a single line-level audio input and two line-level audio outputs. In the absence of a control input, the NORMAL module output is fed from the audio input. When the TRIG control terminal is connected to ground, the input audio is fed to the SELECT output and the NORMAL output is switched off. When the TRIG terminal is again disconnected from ground, then the SELECT output is turned off and the NORMAL output is fed from the input. The module contains no relays or other mechanical devices. The control circuits utilize solid-state switching to route the input signal to one of the balanced output line drivers with off attenuation better than 80 dB at all audio frequencies. Soft switching is used to eliminate clicks or pops.

    The control current required at the TRIG terminal is so minimal (< 0.5 mA) that the ST-RX2 can be controlled from nearly any source from switches to logic circuits.

    The ST-RX2 may be controlled using the RDL D-RC2ST or the D-RT2 remote controls.


    Frequency Response:15 Hz to 20 kHz (± 0.5 dB, bridging load)
    30 Hz to 20 kHz (± 0.5 dB, 600 Ω load)
    Switching Time:Fast    /    Soft
    Time required for NORMAL input to turn off:10 us   /    5 ms
    Time required for NORMAL input to turn on:15 us   /    70 ms
    Time required for SELECT input to turn off:15 us   /    10 ms
    Time required for SELECT input to turn on:20 us   /    35 ms
    Control Signal:TRIG terminal must be externally
    pulled to ground
    Control Current:0.5 mA
    THD+N:< 0.05%
    Headroom (above +4 dBu):> 18 dB
    CMRR> 45 dB (100 Hz, either port)
    Noise (below +4 dBu):< -80 dB (85 dB typical)
    ON Gain:Unity (600 Ω balanced input/output)
    Audio Output:+4 dBu nominal, 150 Ω balanced, terminal block
    Inputs (2):20 kΩ balanced, +4 dBu nominal
    Shipping Weight:0.198 lbs.
    WEEE weight:0.145 lbs.
    Tariff code:8543.70.9860
    Package Dimensions:2 x 2 x 4 in.
    Power Requirement:GROUND-REFERENCED, 24 Vdc @ 40 mA
    Package Type:Cardboard Box
    Indicators (2):LED showing active input (left LED=NORMAL; right LED=SELECT)
    Ambient Operating Environment:0° C to 55° C
    OFF Attenuation:> 80 dB (10 Hz to 20 kHz, either input)

    Related Products

    Switching & Control
    • Line-Level Audio Switch 2x1


      Line-Level Audio Switch - 2x1

    Related Products

    STICK-ON® Mounting Accessories
    • SMK-12

      STICK-ON Mounting Plate

    • SR-10

      STICK-ON Series 19" Mounting Rack - 10 modules

    • SR-12A

      STICK-ON Series 19" Mounting Rack - 12 modules

    • ST-PBR4

      STICK-ON Mounting Bracket

    • ST-RRB1

      Rear rack rail mounting kit for any STICK-ON module

    • STR-19A

      STICK-ON Series 19" Racking System - 12 modules

    • STR-19B

      STICK-ON Series 19" Racking System - 10 modules

    • STR-H6A

      10.4" Rack Mount for 6 STICK-ON Series Products

    General Mounting Accessories
    • DMK-5

      Detachable Mounting Kit for RDL Modules

    • MB-1

      Mounting Kit - RU, ST and TX Series

    • SR-4

      STICK-ON Series Mounting Rack - 7 modules

    DIN Rail Mounting Accessories
    • DRA-35S

      STICK-ON DIN Rail Adapter - 1 module

    • DRA-35S6

      STICK-ON DIN Rail Adapter - 6 modules

    General Wiring Accessories
    • DTB

      STICK-ON® Series Detachable Terminal Block




    CAD FilesUnitsFormat
    Engineering Functional BlockAmericanDXF
    Panel Diagram - EndAmericanDXF
    Panel Diagram - FrontAmericanDXF
    Panel Diagram - EndMetricDXF
    Panel Diagram - FrontMetricDXF
    High Res ImagesFormat
    Declaration of Conformity


    Related Products

    • D-RT2

      Remote Control Selector

      Customizable Text

    • D-RC2ST

      2 Channel Remote Control for STICK-ON - Remote selection of audio or video sources

      Customizable Text

    How To Buy

    Direct Dealer Program

    Becoming an RDL direct dealer is quick and easy. To become a direct dealer, your company must meet the following requirements:

    • Must be an A/V contractor, sound contractor or system integrator
    • Must possess a current resale certificate for your state
    Click here to submit a new direct dealer account inquiry

    Buy Online