Altinex MT113-102/103 - Manual (Page 4)

MULTI-TASKER
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ABOUT YOUR MT113-102/103 2
MT113-102/103 - 3 in Mixer, 1 fixed line
level output and 10W amplifier Card
The MT113-102/101 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 three line level balanced/
unbalanced microphone inputs. The Card has a built
in dual 5W power amplifier. The MT113-102 has 70
Volt output for Sound reinforcement speakers and
MT113-103 has Stereo Output to drive 8 Ohms
speakers direct.
Mixing 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 MT113-102/103 can accept
balanced or unbalanced audio inputs and the output
can be wired for either balanced or unbalanced
audio output.
The MT113-102 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 total of 10 Watts of power to the
speakers.
The MT113-103 is primarily designed to utilize the
standard 8 Ohms stereo speaker systems. This
card can deliver full 5 Watts of power to each
speaker.
Through RS-232 control, the MT113-102/103 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.
Phantom Power +12V can be connected to the
microphone input using dip-switch located on the
PCB.
TECHNICAL SPECIFICATIONS 3
FEATURES/DESCRIPTION MT113-102/103
GENERAL
Inputs
Input Connectors
(3) Terminal Blocks
Input 1
Balanced/Unbalanced
Microphone Input
Input 2
Balanced/Unbalanced
Microphone Input
Input 3
Balanced/Unbalanced
Microphone Input
Outputs
Output Connectors
(2) Terminal Blocks
Fixed Output Line Level
Balanced/Unbalanced
Speaker Output MT113-102 70V
10Watts
Speaker Output MT113-103 8 ohms
stereo 5 Watts per
channel
Compatibility Stereo or Mono Audio
Table 1. MT113-102/103 General
MECHANICAL MT113-102/103
Basic Enclosure Slots
Required MT113-102 Two Slots
MT113-103 One Slot
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. MT113-102/103 Mechanical
ELECTRICAL MT113-102/103
Input Signals
Max Line Level Input
0 dBu (.7V p-p) 10k Ohms
Max microphone Input -65dBu (2-10mv) 47 Kohm
Power Amplifier
Output Power
Stereo 5 Watts per
channel
Mono 10 Watts 70V output
Frequency Response
10 Hz to 20 kHz
(+/- 0.5 dB)
Noise Floor -97 dB @ 20 kHz
Table 3. MT113-102/103 Electrical