Itec CONFERENCE-SET User manual

Designed and Manufactured by
ITEC Tontechnik und
Industrieelektronik GesmbH
8200 Laßnitzthal 300
Austria / Europe
CONFERENCE-SET
MANUAL

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CONFERENCE SET
FEATURES
Conferences and podium discussions usually require operating multiple microphones. With every
additional active microphone, the risk of acoustic feedback increases. Additionally, doubling the
number of microphones translates to a reduction of the maximum volume level of 3 dB. Furthermo-
re, you experience comb filter effects, the signal-to-noise ratio (SNR) worsens dramatically and the
intelligibility decreases because of unintended recording of hall and background noise.
This is where the new ITEC MICROMIX 4 comes in.
This mixer automatically detects which microphones are used and reduces the volume levels of all
inactive microphones accordingly. This innovative selection process works reliably even under worst
conditions like high background noise – without having to perform any configurations.
The ITEC CONFERENCE SET includes the new ITEC MICROMIX 4, 4 ITEC podium microphones,
4 ITEC table-top tripods, all necessary cabling and an external power supply unit. All this ships in a
rigid, compact case.
The set can be connected to any available sound system and obviously to all ITEC DEVICES like
the LECTERN SUCCESS, the ACTIVE-BOX or the TWIN-BOX.

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CONFERENCE SET
STEP-BY-STEP INSTRUCTION - ITEC “MICRO-MIX-4”
1.) Connect the microphones to the 3-pin mic plugs on the MICRO-MIX 4 (IN 1 to IN 4). Use
microphones of the same type and construction ONLY!
2.) Connect the Y-cable to the 5-pin plug on the MICRO-MIX 4 (DC IN / AUDIO OUT)
3.) The other end of the Y-cable has 2 jacks:
a. 3-pin XLR jack: Connect this jack to the microphone input of your sound system.
b. DC jack for power supply: Connect this jack to the power supply unit or connect it to the
12V DC plug on your ITEC device (e.g. LECTERN, ACTIVE BOX, TWIN BOX…)
PLUG PIN CONFIGURATION
MICROPHONE PLUGS
DC IN / AUDIO OUT:
PRIORITY SWITCH
CONFERENCE SET
1Pin1: Microphone signal +
2Pin2: Microphone signal –
3Pin3: Microphone ground
1Pin1: Microphone ground
2Pin2: Microphone signal +
3Pin3: Microphone Signal –
4Pin4: Power supply +12 Volt
5Pin5: Power supply ground
At shipping time, all DIP switches are set to “OFF”. Only the microphones that were discussed
above are activated, all others are set to silent.
Each DIP switch corresponds to a microphone channel. If you switch it to “ON”, the specified
channel has priority and will always be active.
The green LEDs indicate the microphone channels with activated priority mode.
PLEASE CONSIDER: setting priority for microphones overrides the setting done by the ITEC
MICRO-MIX 4 controller.
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SPECIFICATIONS
ITEC- Tontechnik und Industrieelektronik GesmbH, A-8200 Lassnitzthal 300 / Austria / Europe
Tel.: [phone] / 3780-0, of[email protected], www.itec-audio.com
ITEC MICROMIX 4 Automatic Microphone Pre-amplifier
Input Impedance 6 k Ohm
Input Amplification max 50 dB
Output Levels Mic or Line (configurable); Microphone Level
(please define optional LINE-Level when ordering!)
Phantom Power 12 V
Power Supply 12 VDC
Dimensions 110 x 50 x 95 mm
Accessories (shipping with product) Cables, power supply unit
ITEC PA7A Gooseneck Microphone (4 pieces)
Impedance 200 Ohm
Cardioid characteristic
SPL max. 132 dB
Phantom Power 9-52 V
XLR M plug
Length 550 mm
Color Black, beamless
ITEC DS2/SW Table Tripod (4 pieces)
Material Cast iron
XLR jacks
Color Black
Dimensions ca. 110 x 120 x 40 mm
Weight 0,8 kg
62 cm
34 cm