“KE”Two channels intelligent power amplifier with big screen(DSP & DANTE)
1. Power Supply
“KE” intelligent power supply of the power amplifier is quasi resonant full bridge topology, the high-frequency transformer magnetic core using cutting-edge technology of nanomaterials. It has the advantage of high power efficiency, big power, and use high power tube as the full bridge switch tube, the power of the internal resistance is low. It can provide high current moment to load. Match the mega bass have enough energy to control paper cone. The presentation of good strength.
2. Amplifying Circuit
“KE” intelligent amplifier can work long hours and under pressure with a loud voice power not smaller and it also won't appear overheating protection. Power amplifier inside there is a real time automatic detection of load impedance circuit. So when the load impedance is lower than the product of the preset value, detection circuit will call this information is sent to a gain of self-locking circuit. Circuit will make some corresponding adjustment, in does not affect the products under the premise of stable work, the output power will adjust according to the size of the load accordingly, so as to ensure the stability of the product, and doesn't affect the use of the load.
“KE” intelligent power amplifier is not easy to overheating protection; the efficiency of the whole machine can reach 89 in 8 Ω conditions. So in normal use is not easy to appear the phenomenon of overheating protection. If due to environment or other reasons lead to rapid temperature rise of the power amplifier, at a certain temperature, the power amplifier within the sensor will automatically by the MCU to turn up the volume fell by 1 dB, at this time if the temperature continues to rise, the volume is automatically drop 1 dB, stop rising and start falling, if the temperature when dropped to a certain temperature, the volume is automatically increased, so far has been added to the initial value. And it has the very good music quality as class AB amplifier, and the efficiency of class D power amplifier.
3. Complete Appliance
“KE” intelligent signal amplification signal processing of the power amplifier and power supply are interrelated. In power amplifier is started, the total control circuit can automatically detect the relevant circuit state, confirmed after each part of the circuit there is no problem to start work. In the process of work, each part of the circuit with MCU can own working state real time detection, and the data sent to the rest of the associated circuits. Other parts at the same time bring the MCU also in the working state of the field testing itself, and to send the information to the rest of the associated circuit, for mutual exchange. In the process of information exchange, if data change in one part of the circuit, then the other circuit will automatically make the corresponding adjustment, make the product stability and reliability to improve on an unprecedented scale.
4. Built-in high-performance DSP processor
“KE” intelligent power amplifier built-in DSP has: high performance double 32 - bit audio dedicated floating-point processor, high performance A/D, D/A converter; Each channel has 5 parametric equalizer, all parameters are adjustable; Multiple frequency division mode, 6db, 12db, 24db or 48db NingKe - sharp, beisaier, butterworth; Each channel has its own latency, maximum 80 ms and 0.1 ms delay interval; Each channel is independent of compressors and limiter, all parameters can be adjusted; Function of phase inversion, digital noise gate; 30 users memory, intuitive and friendly computer interface, RJ45 interface; Channel Copy function, convenient debugging and so on many merits.
Technical Data:
Model |
KE1600A |
KE2400A |
Number of input channels |
2 |
2 |
Number of output channels |
2 |
2 |
RMS. Output Power:EIA (AC230V) |
||
8 ohms ch. |
1600W |
2400W |
4 ohms ch. |
2800W |
3800W |
2 ohms ch. |
4600W |
3800W |
8 ohms bridged |
4800W |
6200W |
4 ohms bridged |
8000W |
6200W |
Special function |
||
Built-in DSP processor |
YES |
YES |
The matrix of input signal |
NO |
NO |
PC Monitor |
YES |
YES |
Standby system |
NO |
NO |
Dimensions / Weight |
||
Dimensions (W/H/D) |
483 mm*88 mm (2 U) *440 mm(Depth contains handle and the rear support) |
|
Weight |
15kg |
15 kg |
Appearance |
Black painted steel chassis with black painted steel/aluminum front |
Overall Efficiency & Input Characteristics |
|
Overall Efficiency (8 ohms) |
89% |
Inputs Sensitivity |
0~20dB |
Inputs Impedance |
30KOHM(balanced, stereo ) 15KOHM (unbalanced, parallel) |
Frequency response |
20-20000Hz(±0.3dB) |
Slew rate |
>30V/us |
Damping factor |
200-1000(tunableness) |
S/N(A weighted) |
>100dB |
Audio Performance |
|
THD+N 20Hz-20KHz for 1W |
<0.03% |
THD+N at 1KHz and 1dB below clipping |
<0.06% |
Frequency response (1W into 8 ohms,20Hz-20KHz) |
±0.3dB |
Common Mode Rejection(CMR) 20 Hz ~ 1 KHZ |
>78dB |
Internal sample rate |
96KHz/48KHz |
Internal data path |
64bit floating point |
Sample Rate Converters |
|
THD + Noise |
0.003 %, 20 Hz - 20 KHz, unweighted |
Analog to Digital inputs |
|
THD + Noise |
0.022 %,typical at 1kHz unweighted at +26dBu headroom setting |
Device presets |
|
Local memory locations for the settings of the product |
30 |
Limiters |
|
Adjustable Inter-Sample Voltage Peak Limiter(ISVPL) |
-20dB ~ +10dB |
Limter Max(RMS and peak limiters) |
YES |
-Max RMS(RMS voltage limiter) |
YES |
-Max Peak(peak voltage limiter) |
YES |
Gain |
|
Simulation attenuator |
0~ 50 , Step 0.25dB |
Rear-panel inerface |
|
Analog/ Digital 2-channels (input + link) |
4*3-pin XLR/2* RJ45 |
Output connectors |
2* Neutrik Speakon NLT4 |
Auto 10/100,Auto Uplink |
2* RJ45 |
Control and monitoring interface |
Via Ethernet for KE AUDIO Controller software. |
Cooling |
Three fans front-to-rear airflow. |
Front-panel user interface |
|
Sunlight normal display LCD |
4.3inch,daylight readable TFT. |
Fault/Warning/Limit/Clip indicators |
LED Display |
Soft function buttons |
Provided |
Standby Power button |
Provided |
Mute Enable button |
Via the touch control input and output mute. |
Meter button |
Provides a menu driven interface for full function. |
Exit button |
Provides a function for switching the submenu. |
Power |
|
Operating voltage range |
AC 160V - 260V |
Soft start/Inrush Current Draw |
6A |