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Octopus ST Split

OCTOPUS ST SPLIT is 1U rack-mount 19” high quality audio stereo switcher equipped with one Main input, four Sub inputs and four outputs

OCTOPUS ST SPLIT has: one Main stereo balanced line input, four Sub stereo balanced inputs, four Stereo balanced outputs and one Main expander stereo output.

Use OCTOPUS ST SPLIT in the Studio for switching from the Main source to four several secondary sources.
You can connect several OCTOPUS ST SPLIT units in cascade mode using the Main expander output of each unit.

The outputs gain may be varied with a potentiometer, and a led display the status of each output ( Main or Sub inputs).

The OCTOPUS ST SPLIT has one stereo balanced line input, five stereo balanced outputs; the XLR-3 input and outputs are electronically balanced each output is individually buffered so that a short circuit on one won’t affect the others.

OCTOPUS ST SPLIT can accept external controls normally off or normally on, steady or pulse; the inputs are opto-insulated and the configuration can be carried out with its panel.

OCTOPUS ST SPLIT supplies an opto-insulated output control which relays the status of the internal audio switcher.

The status of the output opto-coupler can be programmed, it can be normally on, off, steady or pulse.

OCTOPUS ST SPLIT is equipped with by-pass relay to ensure in any case the passage of the main signal in the face of power failure.


Analog audio input: configuration Electronically balanced Left & Right

Input level: -12 ÷ +12 dBu

Input Impedance: 10 KΩ

Common mode rejection: Greater than 50 dB (30 Hz 15 KHz)

Connectors: XLR Female, EMI suppressed


Analog audio output: configuration Electronically balanced Left & Right

Output level: As Input Level in Transparent Mode, -12 ÷ +12 dBu in Absolute Mode.

Output Impedance: 100Ω

Connectors: XLR Male, EMI suppressed

Frequency Response: 20 Hz to 20 KHz  ±0.1dB


Configuration: Opto-coupled (with internally 330Ω  protection)

Typical Voltage input: 5 Vdc (for 10 mA input)

Max Reverse Voltage: 5 Vdc

Connector: RJ45 female


Configuration: Optic solid state relay

Max Voltage: 50 Vac/dc

Max Current: 100 mA

Connector: RJ45 female


Stereo Separation degradation: < 1 dB

Distortion to 1 KHz: < 0.01%

Signal to noise ratio: < 85 dB (CCIR)

Power requirement: 90 – 264 V ~ 50 – 60 Hz

Consumption: 4 W

Power supply: max power 8 W

Dimension (WxHxD): 48.3 x 20 x 4.4 cm 1 rack unit

Weight: 2,5 Kg. (5.5 Lbs)

Operating Temp.: 0 ÷ 50° C.

Brochure + technical information:



Octopus ST Split