120W mixing amplifier Show TA-512M PLUS is part of the warning system and is used to build automatic fire warning systems and music broadcasts. The device is designed for mixing and amplifying an audio signal with the aim of its further transmission to the speakers.
Up to 2 audio sources can be connected to the 120 Watts Show TA-512M PLUS amplifier. You can also connect up to 4 microphones to the unit, one of which has priority over other microphones and music audio inputs. The levels of the line and microphone inputs are adjusted using the knobs on the front panel. The highest priority in this unit is the alarm inputs on the rear panel. When applying an audio signal to these inputs (for example: from a source of alarm messages), it enters the output, muting the signals arriving at any other inputs.
The output stage of the Show TA-512M PLUS amplifier contains a transformer, which further increases the voltage of the amplified signal. This is necessary to minimize losses. Only specialized loudspeakers containing a step-down transformer must be connected to the high-voltage terminals of the amplifier.
In addition to high-voltage, the Show TA-512M PLUS amplifier also has standard “low-impedance” outputs for connecting standard speakers. The gain is adjusted using the knob on the front of the unit.
The Show TA-512M PLUS mixing amplifier is powered by an AC voltage of 220 V. Structurally, the Show TA-512M PLUS is made in a 19-inch rack enclosure designed for installation in a standard electrical cabinet.
This device provides the ability to connect conventional 4 or 8 Ohm passive speakers and transformer speakers to transmit a signal over long distances on a 70V or 100V line.
