Intelligent Network Power Amplifier

NSI-2300/ NSI-2700/ NSI-21300/ NSI-21600/ NSI-22000/ NSI-22400 NSI-4300/ NSI-4700/NSI-41300/ NSI-41600

Class TD (digital-analog) amplifier, nanocrystalline switching power supply, 

high-performance processor (FIR: import/custom, Dante/AES), 

intelligent network control system,

multi-group joint control remote control,LCD large screen touchable control.

Product Details
Characteries:

l Intelligent heat dissipation: The cooling fan in the machine automatically controls the speed in real time, keeping the noise of the fan at the lowest state and solving the problem of environmental noise;

l AGC protection: When the input signal is too large (the output power overload), the AGC module automatically adjusts the channel gain and constant power (100%) output, which guarantees the sound quality and protects the speakers;

l Intelligent digital protection system against square wave, DC, overload, howling, low resistance, short circuit, overheating, overcurrent, overvoltage, on/off, etc.;

 Square wave protection: Automatically identify the waveform with the load impedance, and adjust to output power without square waves.

 DC protection: automatically detect the midpoint potential. It will be back to original working status after short-circuit, overheating, overcurrent, and overvoltage protections are released;

 Howling protection: Automatically identify single-frequency signals and reduce output power;

 Low-impedance protection: automatically detect load impedance and adjust the proper power output;

 Intelligent sound control: When the device is turned on or off, the volume is automatically output from low to high without impact;

 Intelligent temperature control: When the device is overheated, it will automatically reduce the power and continuously output continuous sound.

l High efficiency: original nanocrystalline full-bridge switching power supply, peak power> 20000W, the efficiency of the whole device>85%, energy saving, environmental protection, safe and reliable;

l Good sound quality: Creative digital/analog dynamic Class A amplification, fast speed on instant response, and good control on damping.  

l Touch screen control: volume, mute, lock screen, password, bright/dark screen;

l Automatically lock the screen after 180s of non-operation, and press and hold the screen for 3s to unlock;

l Dark screen energy saving: After 30s of non-operation, the screen brightness will automatically dim and enter the energy-saving display mode;

l DSP function settings: working mode, input routing, Gain, output voltage, Equalizer, Crossover, Delay, Compressor, channel phase, Noise gate, data loading, signal backup, channels copy, system settings, Save and Exit;

l Output voltage: each channel of the output voltage can be independently selected and display the output power to adapt to the speaker power;

l No phase shift filtering: EQ with FIR;

l Network intelligent control: IP local area network, multi-units (≥255 units) joint control;

l Intelligent monitoring: PC network remote intelligent detection and analysis of the working status, temperature, protection, and failure of each channel;

l Routing distribution: 10 channels (analog×4, Dante×4, AES×2) signal input and channel signal matrix selection;

l Signal backup: 10 input signals have mutual hot backup function, switching time and signal threshold can be selected;

l Power amplifier backup system (two-channel power amplifier as optional): When the main power amplifier is protected or malfunctions, the backup power amplifier automatically switches continuously outputs;

l Sequential power supply: 6-channel sequential power output, when a failure occurs, it will automatically switch to the normal output of the socket;

l Seamless switching: When the main power amplifier is protected or fails, the backup power amplifier automatically switches the output within 10ms;

l Signal backup: Dante and AES digital signals can be backed up and switched;

l Remote monitoring: use 485 hands in hand cascade, PC interface can remotely monitor 50 groups (four main and one standby systems);

l Remote on/off: multi-group joint control operation;

l Six-channel sequential power output (automatically converted to normal use of the socket in case of failure) automatic continuous backup in the event of multiple main amplifier protection or failure.


Specifications:

Model (2-CH)

NSI-2300

NSI-2700

NSI-21300

NSI-21600

NSI-22000

NSI-22400

Model (4-CH)

NSI-4300

NSI-4700

NSI-41300

NSI-41600



Output Power (RMS): 8Ω  

300W

700W

1300W

1600W

2000W

2400W

Output Power(RMS): 4Ω/2Ω

500W

1100W

2000W

2400W

3200W

3600W

Output Power(RMS):Bridge8Ω/4Ω

800W

1800W

3200W

4000W

4800W

5600W

Output Voltage/Power(V/W)  

10-50V

10-75V

10-105V

10-115V

10-130V

10-140V

Input   impedance

 (single channel)

20KΩ  Bal  / Single channel)10KΩ (unbal/two channels in parallel)

Input  Sensitivity /Gain

0dB-15dB   / 29dB-44dB (Each channel could be adjustable) 

Electronic Volume/

Channel  Separation

0dB-50dB, Step 0.25dB  / >50dB (8Ω 1KHz)

Conversion Rate /Damping factor

>30V  / us (8Ω 1KHz)  /   >300 (8Ω 1KHz)

SNR / Frequency response

>100dB  ( A weighted )  /  <±0.5 dB (8Ω 30W 20-2000Hz)

THD+H

<0.05%   (8Ω 30W)       /  <0.08% (8Ω 30W)

Power supply voltage/current

AC160V-260V / 50Hz   /    0.4-16A (RMS)

Overall efficiency/starting current

85%  (8Ω 1kHz)         /   Start soft start current:<8A

Rear Panel input/output

Power input socket X1, signal input XLR socket (male/female) X 2/4, AES input XLR  

 (male/female) X1

Dante input socket (RJ-45) X1, IP connection socket (RJ-45) X1, power output socket X 2/4

Dimension

2U  483 X 475 X 88 (mm)(WxDxH) 

Net Weight

12/14   kg

12/14   kg

13/16   kg

13/16   kg

15   kg

15   kg