GENIUS is an audio/video changeover with 2 stereo inputs and 1 stereo output. It fulfils the needs of every radio station for manual or automatic/emergency switching between different audio sources. Up to 3 internal relays can be associated to the ‘blank’ audio detection and to A/B Input switching for further alarm signalling, external signal routing, CD players start, etc.

Besides being driven by its built-in audio detector stage, GENIUS switching circuit can be also controlled from external devices, becoming i.e. a simple ‘slave’ audio switcher driven by a radio automation software, and thus be used for switching between the main program and a local advertising when ‘adv break time’ is on, to connect/disconnect remote audio sources, etc.

In manual mode, GENIUS front panel knob allows immediate selection of either A or B source. Its ideal application is switching between studio feeds and Master control room outputs, in order to select a different audio path i.e. for maintenance reasons.

GENERAL FEATURES
- Weight: ∼ 3.5 Kg
- Dimensions: 1 Rack Unit (484 x 351 x 44 mm)
- AC Main: 110 / 220 VAC, 50 – 60 Hz
- Consumption: 10 VA

EXTERNAL POWERING + 48 Volt
- Voltage: + 48 Volt
- Absorption: 200 mA

AUDIO INPUT A
- Connector Type: XLR female el. bal.
- Max Input Level: + 20 dBu
- Gain adjust: +/- 10 dB, from front panel knobs
- Impedance: 10 KΩ

AUDIO OUTPUT
- Connector Type: XLR male el. bal.
- Max Output Level: + 20 dBu
- Nominal Level: 0 dBu
- Impedance: 100 KΩ

AUDIO INPUT B
The Input B is disabled on GENIUS-ALM version and it is replaced by built-in Mp3 Player
- Connector Type: XLR female el. bal.
- Max Input Level: + 20 dBu
- Gain adjust: +/- 10 dB, from front panel knobs
- Impedance: 10 KΩ

‘FOLDBACK’ OUTPUTS
- Connector Type: Pin RCA
- Level: same as XLR inputs and output
- Purpose: mirror of XLR inputs and output

‘MP3 PLAYER
(available on GENIUS-ALM version only, replaces the INPUt B)
- Media: SD Card with up to 2 Giga capacity
- Played files: MPEG 1 & 2 audio layer 3 (ISO 11172-3) (also known as MP3), WAV and PCM files. MP3 with variable and fixed bit rate
- Play mode: Sequential mode

CROSS-TALK (@10 KHz)
- In A Left to Out R: - 80 dB
- In A Right to Out L: - 82 dB
- In B Left to Out R: - 81 dB
- In B Right to Out L: - 80 dB

NOISE (measured on the output, DIN NOISE AVERAGE)
- With Input A sel.: - 92 dBm
- With Input B sel.: - 90 dBm

AUDIO DETECTING STAGE
- Threshold: Adjustable, - 25 dB ÷ + 6 dB
- Detection delay: From a few seconds to many minutes

REMOTE CONTROL INTERFACE
- Connector type: DB 25 p female
- Devices: 3 relays, 5 photocouplers
- Controls: Mix mode, Reset,
- Signallings: Manual mode, B-left selected. Bright selected.
- Relays: Associated to Audio Detector, BRight selected, B-Left selected.