Description:

●AXT86 series network amplifier is a kind of network fully digital analog-digital signal processor supporting 100/10Mbps self-adaptive TCP/IP network transmission protocol; with the design of double network backup, it is allowed to access to any switch simultaneously. Furthermore, this machine has the functions of network line fault detection and automatic selection in order to improve the reliability.

● The remote audio data stream is able to output the audio signal through this machine, and the host is subject to the intelligent control; in this machine, there is a built-in MP3 player with USB interface and SD card port, so as to play MP3 programs on this machine without playing network audio stream signals; there is a channel of auxiliary audio input interface used for connection to other audio source equipment (e.g. DVD); there is a channel of auxiliary audio output interface used for connection to other amplifiers and extension of the power. There is also a channel of microphone interface used for local paging and so on.

Features:

● This machine is made of high-grade aluminum-alloy drawn panel.

● Cane be mounted to any place accessible to the network. With the network transmission protocol developed independently by DSPPA, it can achieve the dynamic audio data transmission. With dual network interface redundancy design, it is possible to work crossing the network segments.

● There is a built-in high-efficiency digital amplifier with 100V constant voltage output, resulting in the efficiency higher than 90%.

● There are the MP3 player, USB port and SD port, which are used to play the local programs.

● The maximum output power of the amplifier shall be 60W, 120W, 250W, 350W, and 650W respectively.

● The eye-catching design of the digital display screen is able to display not only the time of the clock, but also the time of the playing progress.

● With the time frame synchronization mechanism, it can achieve real-time synchronization of the clock of the machine and the clock of the network host.

● The built-in infrared receiving module is under the control of the infrared remote controller, easy to use.

● The panel integrates 5 status indicators to show the working conditions clearly.

● On the panel, there are 8 shortcut buttons, facilitating the daily use of the local user.

● It has the built-in offline local timing-point playing function, so as to back up and store the timing programs into the SD card, and back up the timing-point programs automatically.

● Outside the machine, there are a channel of AUX line input, a channel of microphone input, and a channel of AUX line output, in order to facilitate the expansion of the other local sound source broadcasting and expansion of local power.

● Outside the machine, there are the two override output interfaces including EMC 24V and short-circuit dry contact to connect the audio controller of the loudspeaker, or the intelligent power supply.

● It is equipped with the peripheral equipment expansion interface, which is used to connect 86-box on-demand color screen, double 86-box help intercom panel, dual-purpose intercom panel, and the Bluetooth audio receiver.

On demand: After connecting the 86-box on-demand color screen, it is possible to achieve the local on-demand of the mass program library of the host.

Paging: After connecting the 86-box on-demand color screen, it is possible to implement the real-time paging for the selected zone.

Intercom: After connecting the help intercom panel, it is possible to achieve help intercom.

Bluetooth audio receiving: After connecting the Bluetooth extender, it is possible to receive the Bluetooth audios, so as to enable the school and marketplace to achieve the sound amplification of the local wireless microphone with the Bluetooth wireless microphone.

● There is a mixed relation between the external line input and the program source for network playing. The local microphone and AUX input will turn on the amplifier by detecting the size of the input signal.

● It is allowed to tailor the linkage trigger function and 100V local emergency line input, in order to facilitate the access to the local public address system for firefighting.

● It has the network playing function, so that it is possible to play the program sources distributed by the network host or audio streams of the network audio collector.

● It is possible to play the background music, emergency paging, and alarm signal from the system host. The network program source has the priority management function at the level 7 or above, and it is classified into the background broadcast, business broadcast, and emergency broadcast.

● The decoding chip with high-fidelity CD tone is used to support 16-bit MP3/WMA/WAV/PCM audio stream data decoding with sampling rate at 48KHZ to the maximum extent.

● Fully digital design with advantages such as high performance, high fidelity, and high audio transmission indicator.

● There is built-in watchdog function to guarantee the normal operation of the equipment effectively.

● With the industrial-level chip design, it has wide range of working temperature for outdoor installation and use.

● There is the built-in DSP sound effect processing chip to achieve the function of high and low pitch adjustment, so it is suitable for compensation in different environments so as to further improve the broadcasting indicator.

● It adopts the high-performance network processing chip and independently developed real-time processing system, so that the Boot time is less than 0.1S, and the time for connection to the network host is less than 2S, resulting in the high real-time capacity; the time delay for broadcasting of real-time program is less than 0.2S.

● The self-developed real-time operating system has strong real-time performance, and the broadcast program sounds of multiple network players are synchronized in real time, and there is basically no time difference between them.

● The independently developed network data stream decoding algorithm, microphone paging, and external line broadcasting are used to realize the strong real-time capacity. The time delay after keeping the paging state for more than 24 hours will be less than 0.5S.

● The independently developed network data correction algorithm is used to guarantee the accuracy of the data receiving while guaranteeing the real-time of the data transmission, stable and reliable.

● The local output volume and local playing status are controllable.

● The source priority and priority depth of the network source, local line source, and local microphone source can be set via the network.

Specification