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The RDL ST-SX4 is a four-input, single-output audio switcher in RDL's "Stick-On" line of products. It will send any one of the four unbalanced audio signals to the unbalanced output, or all of the sources may be switched off. A single input terminal provides control of the unit.
The desired input is switched on when connection of a specific resistance is made between the "Ctrl" input and the ground. The required resistors are included with the ST-SX4. The unit may be controlled by the RC4-ST remote control from RDL.
Solid-state audio input switcher
Four unbalanced inputs and one unbalanced output
Slave capability for stereo applications
Remote switching from a single control pair
In the Box
RDL ST-SX4 - 4-Input Audio Switcher
3 Year Limited Warranty
Table of Contents
Input and Output Level
THD + N
< 0.1% (Typical 0.05%)
15Hz to 40kHz (+/- 0.5dB)
100 k ohms (Unbalanced)
< 50 ohms (Unbalanced)
Below Noise Floor
> 85dB @ 1kHz
> 80dB @ 10kHz
> 75dB @ 20kHz
< -70dB (Referred to -10dBV)
Control Input Resistance
10 k ohms (Pull-up to +15 VDC)
Single Terminal to be Connected to:
None: 0 ohms (Short to Ground)
1: 2.7 k ohms
2: 6.8 k ohms
3: 22 k ohms