*
*
Four-Channel Matrix Power Amplifier
1
I. Introduction to Product
1.1 Description of Equipment
MP906/MP912 four-channel matrix power amplifier is a kind of cost-effective professional intelligent address
system combining the luxurious and high-grade aluminum-alloy panel with standard and exquisite case with an
elegant appearance, and also suitable for household, factory, school, hospital, shop and other commercial
application. The amplification system of this equipment is designed with imported power tube, resulting in the
strong power, wide frequency band, low noise, high fidelity and quality at the level of performance. In the
equipment, there are four channels of power output in order to facilitate the user to access the back-end
loudspeaker. With the perfect and reliable DC output protection, overload protection, short-circuit protection, and
overheat protection, the safety performance of this equipment is improved. The technical essence of this product is
focused on the super adaptability and perfect performance.
1.2 Performance Characteristics
2 channels of line input, each of which may adjust the volume and tune independently;
3 channels of microphone balanced input, each of which may adjust the gain and tune independently with the
op48V phantom power supply;
4 channels of remote paging microphone inputs (Linking up to 10 equipments) and 1 channel of telephone
signal input (Adjustable volume); the remote paging microphone is connected to this equipment with the
crystal plug, and this equipment is connected to the telephone line with the telephone socket, i.e. this
equipment is an slave machine connected to this telephone set;
Fire alarm signal (Adjustable volume) and bell sound source (Adjustable volume);
With built-in MP3 module, play mainstream 32G U-disks and the documents in the formats of MP3, WMA,
WAV and ACC transferred through the bluetooth;
All the sound sources have the function of matrix four-channel output;
Priority level (Default): AUX1---siren---telephone---remote paging microphone 1, 2, 3 and 4---bell---MP3,
AUX2, AUX3, AUX4, AUX5; the priorities of AUXI and telephone are exchangeable through the
“PRIORITY” terminal on the rear panel; with regard to the priority, the hard priority is used for siren,
telephone and remote paging microphone, and the soft priority is used for AUX 1 and bell; the other
remaining sound sources may be mixed into any channel of output simultaneously;
Four channels of line output;
Four channels of power output, each of which has its own 4-16Ω terminal, 70V terminal, and 100V terminal;
The power amplifier has the DC output protection, overload protection, short-circuit protection, and overheat
protection;
LED indication, level indication, and protection indication;
1 channel of 1W/8Ω adjustable volume, which is used to monitor the four channels of line output;
1 channel of RS232 interface, which is used to expand the computer to control this equipment.
