User`s guide

MULTI-TASKER
3
3
ABOUT YOUR MT113-100/101 2
MT113-100/101
3 in Mixer, 1 fixed line level output
and 30W amplifier Card
The MT113-100/101 is a Stereo Audio Power
Amplifier Card designed for use with the
MultiTasker™. When installed in the Basic
Enclosure (MT100-100), This card allows
connection of up to two line level balanced/
unbalanced inputs and 1 microphone. The Card
has a built in dual 15W power amplifier. The
MT113-100 has 70 Volt output for Sound
reinforcement speakers and MT113-101 has
Stereo Output to drive 8 Ohms speakers direct.
Mixing is of input is selected via easy-to-use ASCII
commands from a control system or computer
connected to the RS-232 port of the MultiTasker™
Basic Enclosure. The MT113-100/101 can accept
balanced or unbalanced audio inputs and the
output can be wired for either balanced or
unbalanced audio output.
The MT113-100 is primarily designed to utilize the
70 Volt speaker system. It has on board
Transformer to convert low impedance signal to
high voltage, high impedance output signal. This
card can supply tot al of 30 Watts of power to the
speakers.
The MT113-101 is primarily designed to utilize the
standard 8 Ohms stereo speaker systems. This
card can deliver full 15 Watts of power to each
speaker.
The MT113-100/101 has separate power supply
that is used to drive output of the power audio
amplifier. This power supply has universal power
input and can operat from 90 to 240 volts AC.
Through RS-232 control, the MT113-100/101 can
be controlled to adjust signal level of each input in
32 steps. In addition the volume, treble and bass of
the output amplifier can be adjusted in 32 steps.
All three inputs to the amplifier are mixing inputs
and can be adjusted from 0db to –60db.
TECHNICAL SPECIFICATIONS 3
FEATURES/DESCRIPTION MT113-100/101
GENERAL
Inputs
Input Connectors (3) Terminal Blocks
Input 1
Balanced/Unbalanced
Microphone Input
Input 2
Line level
Balanced/Unbalanced
Input 3
Line Level
Balanced/Unbalanced
Outputs
Fixed Output Line Level
Balanced/Unbalanced
Speaker Output MT113-100 70V
30Watts
Speaker Output MT113-101 8 ohms
stereo 15 Wattas each
speaker output
Compatibility
Stereo or Mono Audio
Table 1. MT113-100/101 General
MECHANICAL MT113-100/101
Basic Enclosure Slots
Required
Three
Weight 2.0 lb (0.45 kg)
Connector Panel Black
T° Operating 10°C-50°C
T° Maximum 75°C
Humidity 90% non-condensing
MTBF (calc.) 55,000 hrs
Table 2. MT113-100/101 Mechanical
ELECTRICAL MT113-100/101
Input Signals
Max Line Level Input 0 dBu (.7V p-p) 10k Ohms
Max microphone Input -20dBu (70mv) 47 Kohm
Power Amplifier
Output Power
Stereo 15 Watts per
channel
Mono 30 Watts 70V output
Frequency Response
10 Hz to 20 kHz
(+/- 0.5 dB)
Noise Floor -97 dB @ 20 kHz
Table 3. MT113-100/101 Electrical