Each STD module is a resistive branching network with RF filtering on each of the four channels. Any channel, A through D, may be either an input or an output. This permits combining stereo signals into mono inputs, splitting mono signals to multiple inputs, and even combining microphones with output shorting switches into a single amplifier input. The STD modules are available in 150 Ω, 600 Ω and 10 kΩ models. All inputs and outputs are balanced.
150, 600 or 10 kΩ Operation
Combine Audio Signals to a Single Output
FilterRF from an Audio Line
Combine Stereo Signals
Feed a Mono Signal to Stereo Inputs
Combine Multiple Mics to a Single Amp
Compactness of RDL STICK-ONs
Circuit Type: Passive
Circuit Configuration: Balanced
Input/OutputImpedance: 150 Ω, 600 Ω, or 10 kΩ, as marked
Number of Inputs / Outputs: 4 total; usable in any combination; split
1 in to 3 out; 2 in to 2 out; 3 in to 1 out
Insertion Loss: 3 dB
Isolation Between Channels: 3 dB (use RDL mixers or distribution
Radio Design Labs STD-150 Passive Audio Divider/Combiner - 150 Ω
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