Sanway Audio DA18K4 User manual

1
Contents
Contents...........................................1
Important note. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Control elements....................................3
Rear panel features introduction.......................4
Audio input connections..............................5
Audio output connections.............................6
Audio output connections.............................7
Professional Power Amplifier Specifications.............8
SANWAY AUDIO
http://www.china-sanway.comhttp://www.china-sanway.com

2
Important Note
IMPORTANT NOTE
ATTENTION: This unit must be protected from damp because of the risk of fire and the
possibility of electric shocks.
1. Make sure that you have the correct mains voltage. Only operate the unit at the mains
voltage marked on the rear panel.
2. Make sure that nothing especially no metal objects are inserted into the device. This
could result in electric shock or malfunction.
3. If the unit is subjected to extreme fluctuations of temperature e.g. On being transported
from outside into a heated room, condensation can form. This unit should not be used untill
it has reached room temperature.
4. In the event of water or any other fluid being accidentally spilt on the unit switch the
unit off immediately and send it to a qualified service workshop for inspection.
5. Make sure that the unit is always well ventilated and never exposed to direct sunlight
6. Do not use sprays to clean the unit as they have a detrimental effect on the unit and could
ignite suddenly.
7. The machine use single power switch, please cut off the power before fix.
8. Please do not put the cup, vessel of flower or container above the machine, in case the
leak out water then cause the leakage current off the machine.
WARNING NOTICES
SAFEGUARDS
Electrical energy can perform many useful funtions, This unit has been engineered and
manufactured to assure your personal safety. Imporoper use can result in potential electrical
shock or fire hazards. In order not to defeat the safeguards, observe the following precautions
for its installation, use and servicing.
Explanation of Graphical Symbols
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
RISK OF ELECTRIC SHOCK:
OPEN ONLY IF QUALIFIED
AS SERVICE PERSONNEL
WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE
THIS EQUIPMENT TO RAIN OR MOISTURE
SANWAY AUDIO
http://www.china-sanway.comhttp://www.china-sanway.com

Front Panel
The front panel LED area includes the following indicators per channel:
Control elements
3
5. CLIP/LIMIT INDICATOR
This indicator signals if the amplifier output is clipping or limiting. When the LED lights up, the limit
power function is working. If the LED flashes briefly, this is not a cause for concern. If this LED is
lit permanently, the volume should be reduced to avoid overload damages to the connected loudspeaker
systems.
4. SIGNAL LED
Green SIG Indicates output signal levels in normal operating range
2. POWER LED
Indicate power on or off
1. POWER SWITCH
Turn the unit power on or off
SANWAY AUDIO
http://www.china-sanway.comhttp://www.china-sanway.com
3. Volume Control
1
2
3
4
5
Adjust the output amplitude of the amplifier

4
Rear panel features introduction
1. POWER SUPPLY INPUT
3.BTL MODE
2.AMPLIFIER OUTPUT
4. AUDIO INPUT
SANWAY AUDIO
http://www.china-sanway.comhttp://www.china-sanway.com
12
3
4

5
Audio input connections
SANWAY AUDIO
http://www.china-sanway.comhttp://www.china-sanway.com
Common knowledge:
Try to use the shielded wire, the higher density shielding layer is the better.
Try to select balance connection for input, to reduce noise interference.
Selection of non balance connection, the shorter the better, preferably not more than 3m.
The weak signal line should avoid to parallel with the power line and the power output line,
otherwise it might produce noise.
Before changing any connection, please turn off all equipments. Otherwise, it may cause
damage to hearing and speakers.
Balanced analog input and
AES3 digital input connection
Non balanced analog input
connection
GND SHIELD

SANWAY AUDIO
http://www.china-sanway.comhttp://www.china-sanway.com
6
Audio output connections
CH-3CH-4
CH-2
CH-1
CH-4
CH-1
CH-3
CH-2
2+ 1-
2-
1+
+
-
CH-3
+
-
8Ω
4Ω
2Ω 8Ω
4Ω
2Ω
2+ 1-
2-
1+
+
-
CH-1
+
-
8Ω
4Ω
2Ω 8Ω
4Ω
2Ω
2+ 1-
2-
1+
+
-
CH-4
8Ω
4Ω
2Ω
2+ 1-
2-
1+
+
-
CH-2
8Ω
4Ω
2Ω
CH-2
CH-4
CH-B
CH-D
CH-1
CH-3
CH-B
CH-A
CH-B CH-A
2+ 1-
2-
1+
+
-
CH-A
+
-
8Ω
4Ω
2Ω 8Ω
4Ω
2Ω
2+ 1-
2-
1+
+
-
CH-B
8Ω
4Ω
2Ω
CH-B
CH-B CH-A
Stereo Output connections

SANWAY AUDIO
http://www.china-sanway.comhttp://www.china-sanway.com
7
Audio output connections
Bridge Output connections
2+
1-
2-
1+
+
-
8Ω
4Ω
2+
1-
2-
1+
+
-
8Ω
4Ω
CH-3
CH-1
CH-4
CH-1
CH-3
CH-2
Bridge Output connections
CH-A
CH-B CH-A

8
Professional Power Amplifier Specifications
SANWAY AUDIO
http://www.china-sanway.comhttp://www.china-sanway.com
ADD:JinLe Industrial Area,PinBu Road,HuaDu District 510800,Guangzhou China
http://www.china-sanway.com
Sanway Professional Audio Equipment Co., Limited
ITEM DA18K4 DA24K2
8Ω Stereo Power(RMS) 1800W ×4 2400W ×2
4Ω Stereo Power(RMS) 2800W ×4 4100W ×2
2Ω Stereo Power(RMS) 4500W ×4 6300W ×2
8Ω Bridged Power(RMS) 5600W x2 8200W
4Ω Bridged Power(RMS) 9000W x2 12600W
Frequency response
8Ω ，20Hz--20kHz ，1/8 rated power ±0.5dB
1KHz THD：0.01-0.03%
Signal-to-Noise Ratio 8Ω, 1kHz ,1v
Sensitivity >=104dB
Input sensitivity (rated power 8Ω) 0.775V/1V/32dB selectable
Cross- talk( 20Hz- 1kHz, below Rated
Power ) >=70 dB
Input Connectors (per channel) 3-pin XLR, electronically balanced
Output Connectors (per channel) Neutrik speakON
Class D
TourClass Protection Under voltage, DC, Over temperature,
Over load limiter, short protection
Operating voltage 90V-260V
Input impedance 20kΩ（Balance），10kΩ（Unbalance）
Damp Factor >=5000
Dimensions(WXHXD) mm 480x430x44mm 480x330x44mm
Packing dimension (mm) 532x522x103mm 515x415x103mm
Net weight(kg) 10.3kg 8.7kg
Gross weight(kg) 13kg 10.5kg