Precision Audio and AV Interface Products

Radio Design Labs

ST-SX4 Unbalanced Audio Switcher - 4x1

  • Select 1 of 4 Unbalanced Audio Sources
  • Audio Selection from Remote Location
  • Remote Switching from Single Control Pair
  • All Solid-State Audio Switching
  • Slave Capability for Stereo Switching
  • Overview
  • Specifications
  • Related Products
  • Accessories
  • Downloads
  • How to Buy
  • Product Series
  • Dimensions

The ST-SX4 accepts up to four unbalanced audio sources. Any of these sources may be selected to feed the output, or all sources may be switched off. The output from the ST-SX4 is unbalanced. Control of the module is accomplished through a single input terminal. Connection of a specified resistance between the CTRL input and ground causes the desired input to be switched on. The necessary external resistors are supplied with the ST-SX4. The ST-SX4 may be remote controlled using the D SERIES-RC4ST remote control.


AUDIO
Input and Output Level:
-10 dBV
Gain:
Unity
Headroom:
23 dB
THD+N:
< 0.1% Typ. 0.05%
Frequency Response:
15 Hz to 40 kHz (± 0.5 dB)
Input Impedance:
100 kΩ, unbalanced
Output Impedance:
< 50 Ω, unbalanced
Crosstalk:
Below noise floor
Off-Channel Attenuation:
> 85 dB @ 1 kHz
> 80 dB @ 10 kHz
> 75 dB @ 20 kHz
Residual Noise:
< -70 dB (referred to -10 dBV)

CONTROL
Control Input Resistance:
10 kΩ (pullup to +15 Vdc)
Control Input:
Single terminal to be connected to ground terminal to select desired channel.
Input Selected
Resistance Value
  None
0 Ω (short to GND)
  1
2.7 kΩ
  2
6.8 kΩ
  3
22 kΩ
  4
None
Ambient Operating Environment:
0° C to 55° C
Power Requirement:
GROUND-REFERENCED, 24 Vdc @ 45 mA
Package Type:
Cardboard Box
Package Dimensions:
2 x 2 x 4 in.
Shipping Weight:
0.21 lbs.
WEEE weight:
0.16 lbs.
Tariff code:
8543.70.9860

Documents:
Format
PDF
CAD Files:
Format
High Res Images:
Format
Declaration of Conformity:
Format
PDF
A&E Specifications:
Format

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ST-SX4 ST-SX4