“KE”Intelligent Power amplifier
“KE”Two channel intelligent power amplifier with big screen（DSP）
2016-08-17 09:34:33

“KE”Two channel intelligent power amplifier with big screen（DSP）

 

Intelligent power amplifier introduction  
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 productof the preset value, detection circuit will call this information is sent to a gain of self-locking circuit. Circuit will make somecorresponding 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 overheatingprotection, the efficiency of the whole machine can reach 89 in 8 Ω condition. So in normal use is not easy to appear the phenomenon of overheating protectio. 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

KE700D

KE1000D

KE1300D

KE1600D

KE2000D

KE2400D

KE1602D

Number of input channels

2

2

2

2

2

2

2

Number of output channels

2

2

2

2

2

2

2

RMS. Output Power：EIA (AC230V)

8 ohms ch.

700W

1000W

1300W

1600W

2000W

2400W

1600W

4 ohms ch.

1200W*

1700W*

2200W*

2700W*

3300W*

3800W

2800W

2 ohms ch.

1200W*

1700W*

2200W*

2700W*

3300W*

3800W

4600W

8 ohms bridged

2000W*

2800W*

3600W*

4600W*

5600W*

6200W

4800W

4 ohms bridged

2000W*

2800W*

3600W*

4600W*

5600W*

6200W

8000W

Special function

Built-in DSP processor

YES

YES

YES

YES

YES

YES

YES

The matrix of input signal

NO

NO

NO

NO

NO

NO

NO

PC Monitor

YES

YES

YES

YES

YES

YES

YES

Standby system

YES

YES

YES

YES

YES

YES

YES

Dimensions / Weight

Dimensions (W/H/D)

483 mm*88 mm (2 U) *440 mm（Depth contains handle and the rear support）

Weight

14kg

14kg

14.5kg

14.5kg

15 kg

15 kg

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

Internal data path

32bit 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 1dB

Rear-panel inerface

Analog (input + link)

4*3-pin XLR

Output connectors

2*Neutrik Speakon NLT4

Auto 10/100,Auto Uplink

3 * 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
(1): Separate 230V versions available in mainland China . Not selectable on the product.
(2): Asymmetrical loading of the outputs will yield even higher ratings. If one (or two) channel(s) has reduced power requirements, then the voltage drop from the power supply will be reduced, resulting in higher power availability for the other channel(s).

 

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