3G Audio AK800 User manual

USER MANUAL
AK800
3G Audio3G Audio PROTECT
CLIP
SIGNAL
ACTIVE
1X500W+3X150W AK800
SW-VOL L-VOL R-VOL C-VOL
POWER
4-Channel Power Amplifier
3G Audio3G Audio
POWER AMPLIFIER
FOUR CHANNEL POWER AMPLIFIER
//
1
/3G Audio/AK800

Magnetic Field
CAUTION!Do notlocate sensitive high-gain equip-
ment such as preamplifiers or tape decks directly
above or below the unit . because this amplifier has
a high power density .it has a string magnetic field
which can induce hum into unshielded devices that
are located nearby . The field is strongest just above
and below the unit.
If an equipmentrack is used , we recommend locating
the amplifier ( s ) in the bottom of the rack and the
preamplifier or other sensitive equipment at the top.
Printed on
recycled paper.
WATCH FOR THESE SYMBOLS:
The lightning bolt
triangle is used to
alert the user to the
risk of electric shock.
The exclamation point
triangle is used to alert the
user to important operating or
maintenance instructions.
!
SPECIFICATIONS
A PREVENIR LE CHOC
ELECTRIQUE LE N'ENLEVEZ
PASLES COUVERTURES.
RIEN DES PARTIES
UTILES A L'ICTERIEUR.
DEBRANCHER LA BORNE
AVANT D'OUVRIR LA
MODULE EN ARRIERE.
NEL.DISCONNECT POWER CORD
BEFORE REMOVING REAR INPUT
MODULE TO ACCESS GAIN SWITCH.
TO PREVENT ELECTRIC SHOCK DO
NOT REMOVE TOP OR BOTTOM
COVERS.NO USER SERVICEABLE
PARTS INSIDE.REFER SERVICING TO
QUALIFIED SERVICE PERSON
RISK OF ELECTRIC SHOCK
DO NOT OPEN
AVIS
RISQUE DE CHOC ELECTRIQUE
N OUVREZ PAS
CAUTION
1
FOUR CHANNEL POWER AMPLIFIERS

2
1 Introduction
AK800 amplifier has been designed using an advanced structural concept and qualified components
to meet the most demanding requirements in the sound amplification field.
The AK800 amplifier has four independent channels:
2. Operating Instructions
Before connecting the amplifier to the power socket, make certain that the voltage corresponds
with that indicated on the rear of the unit. (a tolerance of 10% is acceptable).
Before connecting the power cable to the mains, always make certain that it is not damaged and that
there are no bare wires, always connect the power cable to the amplifier before switching it on and only
remove the cable after switching it off.
3. Inputs
There's a XLR connector for each channel respectively on the back panel of AK800.
4. Outputs
Each channel has a NL4 connector and a binding post connector connected in parallel. Only
loudspeakers within the amplifier's declared power and impedance load range should be connected to
the amplifier's output. The red binding posts are considered as hot , connecting to the positive poles
of loudspeakers, the black binding posts connecting to the negative poles of loudspeakers.
5. Power Supply
Make sure power capacity of power outlet is correct. The AK800 amplifier power requirement is:
220V/AC, 12A FUSE.
6.Volume control
Do not attempt to service the products beyond that described in the manual. All other serviceable should be referred to
qualified service personnel.
Center channel Left channel Right channel Subwoofer channel
150W 150W 150W 500W
There are 4 hidden volume controls for each channel respectively.
FOUR CHANNEL POWER AMPLIFIER

7. LEDs.
The following is a description of all the AK800 protection:
1)PROTECT LED
Indicates that one of the various protections safeguarding the different sections of the
amplifier and the loudspeaker enclosure has tripped due to an operating fault.
In these cases, the power output is normally switched off until normal operating conditions
are restored.
2)CLIP LED
Indicates the presence of distortion as a result of excessive input level or too low output
impedance.
3)SIGNAL LED
Indicates signal presence for receptive channel.
4)ACTIVE LED
Indicates active status.
8. Protection Features
Each AK800 power amplifier incorporates several circuits to prevent itself and the
loudspeakers connected from short circuit, DC voltage, and overheating damage.
(1)Thermal Protection
In the event of malfunction, a sensor located on the power outputs is able to break the circuit
avoiding that current peaks reach the speakers and damage them.
(2)DC Protection:
(3)Turn ON/OFF Protection
(4)Short circuit protection
Trips in the event of a short-circuit or overload, limiting the output current.
9. Maintenance
Correct cooling for the amplifier is ensured by an internal fan, the speed of which is
controlled by a special sensor (the speed is proportional to output power and therefore
the temperature generated): remember never to block the air vents located on the sides
of the unit in any way.
Avoid exposing the amplifier to direct sunshine, high temperature environment, strong
heat, intense vibrations, very dusty or damp surroundings, or even worse, rain: which
will cause eventual malfunction, deterioration or even electric shocks and fires.
10 User Responsibility
Before connecting or operating your new AK800 amplifier, please study the
accompanying instruction manual carefully. Pay particular attention to the operating
precautions and wiring procedure.
3
FOUR CHANNEL POWER AMPLIFIER

11. Specifications
4
FOUR CHANNEL POWER AMPLIFIER
Balance input-20K Unbalance input-10K
Subwoofer
channel
Left
channel
Right
channel
Center
channel
500W 150W 150W 150W
<0.08%
<0.5%
<0.04%
<0.1%
<0.04%
<0.1%
<0.04%
<0.1%
103dB 98dB 98dB 98dB
>218 >127 >187 >127
14.5V/us 12.5V/us 12.5V/us 12.5V/us
20Hz-20KHz( 0.2dB)
Binding post NL4
Hidden independant volumecontrols
Limit select control,ground select control
Frequency response
Total harmonic distortion
(10% Rated outputpower)
Intermodulation distortion
60Hz/7KHz,1% output power
Signal to noiseratio(A weight)
Damping factor
Slew rate
Input impedance
Input connectors
Output connectors
Cooling
Controls(front panel)
Controls(back panel)
LEDs
Protection
Dimensions
Weight
Packing Dimensions
Max power consumption
Packing Weight
Power supply
483x452x90mm
AC 220V-240V, 50Hz
Output power
(0.1%THD, 8 , 1KHz sinewave)
24Kg
1200W
SPECIFICATION
3 Pins XLR
Dual Cooling Fans
Red Protection Red- - Clip Green -Active Green - status
Short circuit /DC / Overload / Overheat protection
550x540x175mm
27Kg

[Front Panel]
1. Air Vents
2. LEDs for S
Protect/clip/signal/active
3.
ubwoofer channel.
LEDs for Left Channel.
Protect/clip/signal/active
4. LEDs for Right channel.
Protect/clip/signal/active
5
PROTECT
CLIP
SIGNAL
ACTIVE
1X500W+3X150W
SW-VOL L-VOL R-VOL C-VOL
POWER
2
3
45
6789
10
FOUR CHANNEL POWER AMPLIFIER
5. LEDs for Center channel.
Protect/clip/signal/active
6. Power switch
7. Subwoofer channel volume control.
8. Left channel volume control.
9. Right channel volume control.
10. Center channel volume control.
1 2 34567
8 9
10 11 12 13
17
CENTER RIGHT LEFT SUBWOOFER
CENTER RIGHT LEFT SUBWOOFER
LIMIT GROUND
OFF
ON LIFT
GND
!
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
INPUT
OUTPUT
WARNING: To Reduce The Risk Of Fire
Of Electric Shock Do Not Expose This
Equipment To Rain Or Moisture.
14 15 16
1. Signal input connector of
Center channel.
2. Signal input connector of
Right channel.
3. Signal input connector of
Left channel.
4. Signal input connector of
Subwoofer channel.
5. Limit control.
6. Ground select control.
7. Fuse.
8. Output of center channel.
9. Output of right channel.
10. Output of left channel.
11. Output of subwoofer channel.
12. Output of center channel.
13. Output of right channel.
14. Output of left channel.
15. Output of subwoofer channel.
16. AC power line.
17. Cooling fans.
[Rear Panel]

6
SYSTEM CONNECTION
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
SENSITIVITY SENSITIVITY
INPUT
LEVEL
INPUT
LEVEL
INPUT
LEVEL
L M H L M H
AUX1 AUX1 AUX2 AUX2
BGM PRE-OUT SIGNAL IN EFFECT OUT REMOTE-IN
CENTER
VOLUME CENTER OUT RIGHT OUT LEFT OUT SUB OUT
SUB
VOLUME
L
R
L L
R R
BGV
L
R
1 2 3
IN
OUT
record
equipment or sound
reinforcement equipment
Ak800Ak800
AK800 four channelamplifier
Mixer
TV1 TV2 TV3
123
SUB
HIGH CUT
AC ~220V/50HZ

3G Audio3G Audio
KARAOKE AMPLIFIER