Kobble Digital Electronic AK2-1000, Owner'S Manual

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 8

Ω

Input impedance(nominal)  
               Balanced
             Unbalanced

1kHz

(

HIA

)

with0

.

5

%

THD

4

Ω 

stereo(per channel)

8

Ω 

bridge

mono

Rated power /model

Performance

Construction

Ventilation

Protection

Cooling

Power cord specification

 Chassis size( unit mm)

Net weight

8

Ω 

stereo(per channel)

20Hz-20KHz,+0-1dB

<0.5%,20Hz-20KHz

=/<0.35%

>20V/us

>200

>100dB

-75dB

-58dB

0.775V

or

1.4V

20K ohms

10k ohms

AK3-1200

AK3-1500

37.9dB

7.8kg

482x227x88

2050W

2100W

2x35

.

2dB+38

.

4dB

AK series professional audio power amplifier

1x2300W

1x2470W

1x1470W

1x1600W

10

Protection against short 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

1.

This amplifier only can plug in the AC power socket which the user's manual instructs or

   the specification is shown on this adapter. Or else it may damage the amplifier and cause
   a fire or electric shock.

2

.

Do not place heavy objects (including this amplifier) on the power cord, or else it may 

   damage the power cord and then cause an electric shock or fire.

3

.

Do not expose the amplifier in the fume, high humidity, high temperature and dust 

   accumulation place and use.

4

.

Do not put this amplifier sidelong or upside down, use it in a good air flow environment.

5

.

When abnormity happen in the operation process, such as smoke, odor, noise, or foreign

   bodies, liquid entering into the amplifier, please turn off the amplifier immediately, and
   unplug the socket from the AC power socket

6

.

When abnormity happen, please don't open the chassis and rebuilt or repair the amplifier 

   by yourself, if the internal is sure to need repair and maintenance, please contact the 
   dealers to deal with it.

1

.

When the speaker is connected to the amplifier output socket, it only can use the 

   speaker special cable and connect it in accordance with the provisions.

2

.

When connect the amplifier, please close all the instruments, audio equipments and

   speakers.

3

.

Before turning on the amplifier, please turn down the volume to a minimum.

4

.

If you do not use this amplifier for a long time, please unplug the power cord from the

   AC mains socket.

Operation

：

Safety Operation

Cautions

5

.

When unplug the power plug from the AC power socket, please grasp the plug. Do not 

   directly pull the cable. Otherwise it can damage power cord and then lead to a fire or 
   electric shock.

03

AK series professional audio power amplifier