Frequency Response(at 1 Watt)
Total Harmonic Distortion(THD)
Intermodulation Distortion60Hz
and 7KHz at 4:1from full rated
output to -30dB
Slew Rate
Voltage Gain
Damping Factor(8ohms)10Hz-
400Hz
Signal-to-Noise Ratio (below
rated power,20Hz to 20kHz.
A-weighted)
Crosstalk(below rated power)
At 1kHz
At 20kHz
Input Sensitivity for full
rated power at 8Ω
Input impedance(nominal)
Balanced
Unbalanced
1kHz(HIA)with0.5%THD
4Ω stereo(per channel)
8Ω bridge mono
Rated power /model
Performance
Construction
Ventilation
Protection
Cooling
Power cord specification
Chassis size( unit mm)
Net weight
8Ω stereo(per channel)
20Hz-20KHz,+0-1dB
<0.5%,20Hz-20KHz
=/<0.35%
>20V/us
>200
>100dB
-75dB
-58dB
20K ohms
10k ohms
AK4-700
AK4-1300
35.3dB
8.0kg
482x227x88
2x2300W 2x4000W
37.8dB
0.775V or 1.4V
AK series professional audio power amplifier
4x1030W 4x1670W
4x670W 4x1220W
AK4-300
2x1000W
4x550W
4x350W
11
33dB
Protection against shor t circuits, no-load, on/off muting, RF interference.
Flow-through ventilation from front to back
Internal heat sinks with forced air. Fan cooled, speed regulated,
thermal protection
Plug Wire:：10A，250V 3x1.0mm
02
4. ：Functions & Features
5. ：Certification
In order to prepare to provide the needed materials to the production, we use a complete
ERP system which can comprehensively balance and optimize management the resources.
In addition, we also bear the following certification.
<1>EU “CE” compulsor y certification mark
<2>UL product safety test and certification
<3>American product safety standard
<4>PSE Japanese compulsory safety mark
<5> KET Korean compulsory certification
<6>RoHS Certificate
<7>CCC National Compulsory Certification
<8>ISO9001 quality system certification
AK series professional audio power amplifier
<1>Efficient heat-sink, variable speed cooling fan, ensures the amplifier working at the
low temperature.
<2>Exquisite shape and standard installation hole.
<3>Perfect protection, including limit, the on / off shock protection, DC protection,
output shor t circuit protection, overheat protection.
<4>In-built limiter, it is a very effective protection against electrical damage to the speaker.
<5>Excellent audio signal performance, which has excellent signal conversion feature, it
has very little harmonic distortion (THD), intermodulation distor tion (SMPTE-IM),
transient intermodulation distortion, pure and natural interstitial deduction.
<6>STEREO,BRIDGE, PARALLEL working mode.
<7>Each channel has its Signal and Clip indicator.
<8>When the protection circuits work, Fault indicator lights, and sound output auto
matically stop at the same time.
<9>The front panel level gain control.
<10>The newest MD component technology makes the product more stable and reliable
<11>The transistors directly contact with the heat sink to make it cool quickly.
<12>The optimization cooling system let the machine work stability,With automatic
variable speed fan.
<13>The unique short circuit locking and automatically reset function let the customers'
visual performance more reliable.
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