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MULTI-TASKER
3
ABOUT YOUR MT108-104/(105) 2
MT108-104/(105)
4-in 4-out Stereo Audio Line Driver
Cards
The MT108-104/(105) is a Stereo Audio Line
Driver Card designed for use with the Multi-
Tasker system. When installed in a Multi-
Tasker, this card allows the connection of four
stereo audio sources to four receiving devices,
which can include cassette recorders, mixers,
and/or amplifiers for sound reinforcement systems.
These cards are ideal for distributing audio to
recording devices in dubbing racks using simple
off-the-shelf cables. As an example, the MT108-
104/(105) can distribute audio to four cassette
recorders or it can handle the audio portion of A/V
distribution to four VCRs.
As a “transparent” line driver, these cards utilize
AC coupling on their inputs for ideal signal transfer
characteristics. The power indicator on the card is
a red LED indicating the board has power applied.
These cards consume one slot each.
TECHNICAL SPECIFICATIONS 3
FEATURES/DESCRIPTION
MT108-104/(105)
GENERAL
Inputs 4
Input Connector
Four 3.5mm stereo mini
Female audio jacks
Outputs 4
Output Connector
Four 3.5mm stereo mini
Female audio jacks
Compatibility Stereo Audio
Table 1. MT108-104/(105) General
MECHANICAL MT108-104/(105)
Enclosure Slots Required One
Weight 1.0 lb. (0.45 kg)
Connector Panel Black
T° Operating 10°C-40°C
T° Maximum 0 to 50°C
Humidity 90% non-condensing
MTBF (calc.) 45,000 hrs
Table 2. MT108-104/(105) Mechanical
ELECTRICAL
MT108-104/(105)
Input Signals
Max Level 0 dBu
Impedance 600 Ohms
Audio Throughput
Gain 0 dB
Frequency Response 10Hz to 20kHz (+/- 0.05 dB)
Noise Floor -100 dB @ 20 kHz
CMRR >80 dB, 10 Hz to 20 kHz
Output Signals
Level, Each Channel 1V p-p
Impedance 600 Ohms
Gain 0 dB
Power
Power from
MT100-100
+6V -6V +13V -13V
Power
Consumption
MT108-104 15mA - 30mA 20mA 0.74 watts
MT108-105 20mA - 45mA 35mA 1.04 watts
Table 3. MT108-104/(105) Electrical