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The MT113-103 and MT113-102 are Stereo Audio Power Amplifier cards designed for use with the MultiTasker ™. When installed in the Basic Enclosure (MT100-100), these cards allow connection of up to three line level balanced/unbalanced microphone inputs. The cards have 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 directly.
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. The MT113-102 and MT113-103 can accept balanced or unbalanced audio inputs and the output can be wired for either balanced or unbalanced.
The MT113-102 is primarily designed to utilize the 70 Volt speaker system. It has an onboard transformer to convert low impedance signals to high voltage, high impedance output signals. These cards can supply a 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 and MT113-103 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.
The MT113-103 requires one slot in the MultiTasker; the MT113-102 requires 2 slots.
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Specifications