RDL 1x2 Audio Routing Switcher

Have a Question? Ask Our Experts!
Add To Wish List

Input: 20 kO balanced, +4 dBu nominal
Audio Outputs (2): +4 dBu nominal, 150 f> balanced, terminal block
Switching Time: Fast Soft
Time required for NORMAL output to turn off: 10 us 5 ms
Time required for NORMAL output to turn on: 15 us 70 ms
Time required for SELECT output to turn off: 15 us 10 ms
Time required for SELECT output to turn on: 20 us 35 ms
Control Signal: TRIG terminal must be externally connected to ground.
Control Current: 0.5 mA
Headroom: > 18 dB (above +4 dBu)
THD+N: < 0.030% (1 kHz)
CMRR: > 45 dB (100 Hz)
Frequency Response: 15 Hz to 20 kHz (± 0.5 dB into 10 kQ bridging input)
30 Hz to 20 kHz (± 0.5 dB into 600 Q)
Noise: < -85 dB (below +4 dBu);
-90 dB (typical)
ON Gain: Unity (Balanced input and output)
OFF Attenuation: > 80 dB (Either output); > 95 dB at 1 kHz
Indicators (2): LED showing active output (left LED=NORMAL; right LED=SELECT)
Ambient Operating Environment: 0° C to 55° C
Power Requirement: GROUND-REFERENCED, 24 Vdc @ 40 mA
Package Type: Cardboard Box
Package Dimensions: 2 x 2 x 4 in.
Shipping Weight: 0.2 lbs.
WEEE weight: 0.15 lbs.
Tariff code: 8518.40.2000

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 TRIGterminal 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.


  • 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

Autorized Dealer provides the following benefits:

  • 100% Authentic products and Accessories
  • Manufacturer Warranty & Product Registration
  • Comprehensive Products Training and Knowledge
  • After Sale Technical Support by Certified Professionals
  • Commitment Outstanding Service and Support

Our perks

Great Prices and Exclusive Offers Every Day
Same-day Shipping if Order Placed by 12:00PM PST
Free Expedited Shipping*
We Ship Internationally
Ask Professional Advice via Online Chat, Email, or Phone
Free Technical Support for All Products
30-day Price Match Guarantee
60-day Money Back Guarantee

Connect with us

Join our community! Stay on top of all the latest technology, industry events, and consumer electronics content from around the web.

Sales & expert advice 1.888.660.2962

Live chat