Two channels professional amplifier
USER MANUAL
DP180 0
PROTECT
SIGNAL
CLIP
0
-∞
-∞
0
DP3200
DP2240
DP1800
DP1400
IMPORTANT SAFETY INSTRUCTION
Please see below basic protection proceeding before using?
1. Please read all the safety instruction before using the product.
2. This product must be earthed. If it should be malfunction or break down, grounding provides a path of least resistance
for electric current to reduce risk of electric shock.
This product is equipped with a cord having an equipment-grounding conductor and a grounding plug. The plug must be
plugged into an appropriate outlet that is properly installed and earthed in accordance with all local codes and ordinance.
DANGER- Improper connection of the equipment-grounding conductor can result in a risk of electric shock. Check with
a qualified electrician or serviceman if you are in doubt as to whether the product is properly grounded. Do not modify the
plug provided with the product - if it will not fit the outlet, have a proper outlet installed by a qualified electrician.
3. To reduce the risk of injury, close supervision is necessary when the product is used near children.
4. Do not use this product near water-for example, near a bathtub, washbowl, kitchen sink, in wet basement or near a
swimming pool or the lake.
5. This product may be capable of producing sound levels that cloud cause permanent hearing loss. Do not operate for a
long period of time at high volume level or at a level that is uncomfortable. If you experience any hearing loss or ringing
in the ears, you should consult an audiologist.
6. This product should be located so that its location or position doesnot interfere with its proper ventilation.
7. This product should be located away from heat sources such as radiators, heat registers or other products that produce heat.
8. The product should be connected to a power supply only of the type described on the operation instructions or as marked
on the product.
9. This product may be equipped with a polarized line plug (one blade wider than the other). This is a safety feature. If you
are unable to insert the plug into the outlet, contact an electrician to replace your obsolete outlet. Do not defeat the safety
purpose of the plug.
10.The power-supply cord of the product should be unplugged from the outlet when left unused for a long period of time.
When unplugging the power-supply cord, do not pull on the cord, but grasp it by the plug.
11.Care should be taken so that object do not fall and liquid are not spilled into the enclosure through opening.
12.The product should be serviced by qualified service personnel when:
A. The power-supply cord or the plug has been damaged; or
B. Objects have been fallen, or liquid has been spilled into the product; or
C. The product has been exposed to rain; or
D. The product does not appear to operate normally or exhibits a marked change in performance; or
E. The product has been dropped or the enclosure damaged..
13.Do not attempt to service the product beyond that described in the user-maintenance instructions. All other servicing
should be referred to qualified service personnel.
WARNING- Do not place objects on the product's power cord or place it in a position where anyone could trip over,
walk on or roll anything over it. Do not allow the product to rest on or to be installed over power cords of any type. Improper
installations of this type create the possibility of fire hazard and/or personal injury.
14.The power-supply cord should be unplugged from the outlet when the products is completely power off from the electric
powersources and electric networks.
SAVE THESE INSTRUCTIONS
Page 1
CA UT IO N
RISK OF E LE CTRIC SHO CK
DO NOT OP EN
CAUTIO N:TO R EDUCE T HE RI SK O F ELE CTRIC
SHO CK DO NOT REM OVE C OVER(OR B ACK ) NO
USE R-SE RVICEAB LE PARTS I NSIDE R EFER SE RV ICI NG
TO QU ALIFI ED PE RS ONN EL
The lig ht ning flas h wi th arrowh ead synbo l wi thin
an equi la teral tri an gle is inte nded to ale rt t he user
to the pr es ence of uni ns ulated da ngerous v ol tage
withi n th e product 's e nclosur e, that ma y be o f
suffi cientm ag nitude to c on stitute a r is k of electr ic
shock t o pe rsons
The exc la mation po in t within an e quilate ra l triangl e
is inte nd ed to alert t he u ser to the pr esence of
impor ta nt operat io n and maint enace(s er vicing)
instr uc tion in the l it erature a ccompan yi ng the
appli an ce.
Installation & operating instruction
Before connecting the amplifier to the mains power socket, make certain that the voltage
corresponds with that indicated on the rear of the unit
(An allowance of ±10% is acceptable).
Before connecting the power cable to the mains, always make certain that it is not damaged
Always connect the power cable to the amplifier before switching it on and only remove the
cable after switching it off.
In an audio system, it's always better to switch power amplifiers on last and off first.
Remember to switch off the amplifier before connecting it to or disconnecting it from other units
and to switch always on first the mixer and then the amplifier : in this manner, peaks which are
annoying and sometimes dangerous particularly for the loudspeakers enclosures are avoided.
It is normal for the LEDs to light up for a few moments when switching on.
Avoid installing your equipment near radios, televisions, etc., since they could cause noisy disturbance.
When connecting the other units in your sound system, watch out for to so-called earth-loops,which can cause
hum: in he event of interference, try using the EARTH switch on the amplifier's rear panel.
1
2
3
4
5
Amplifier's correct cooling 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 unit's sides in any way: the air necessary for
cooling passes through these. If the amplifier is kept in a flight-case during use, make certain that
it has suf
ficient openings at both the amplifier's air vents.
A
void locating it very small spaces which
don't allow correct air circulation.
6
Do not expose the amplifier to inviroment moisture Do not expose the amplifier to corrosive
chemicals such as soft drinks, lye, salt water, etc.
High quality for performance amplifier
Main power connecting
Switching on and off
Notice
Do not force knobs and connectors, as they could be damaged if treated with excessive force.
Air circulation for cooling
Prevention of possible interference
Prevention of possible liquid
Page 2
1
2
3
4
Сhannel A Volume Potentiometer
Power Switch
Status Indicator
---
Operation
1
---
---
---
Front Panel
Page 3
DP180 0
PROTECT
SIGNAL
CLIP
0
-∞
-∞
0
3
2 4
Сhannel B Volume Potentiometer
1、Balance INPUT (30 kΩ ) an d LI NK o ut pu t:
There is one in pu t an d on e li nk o ut pu t XL R co nn ec to r in e ac h channel in all models.
The link connector can output signal to another amplifier or ot he r au di o de vi ce s.
2、Power outputs connected to the loudspeaker. There are two types of connectors
SPEAKON and BINDING-POST in e ac h ou tp ut c ha nn el . Po we r an d im pedance of
loudspeaker must be matched to rated value of the power amplifier, beyond the range
of product so that stability will not guarantee. (see Technical specifications ).
3、Earthing / Floating: Controls the separation of the electrica l ea rt h fr om t ha t of t he
chassis. Using this selector, it is often possible to break earth loops which can form
when several units are connected together and which can cause hum o f ot he r no is es .
4、 Mains Input socket: 120Vac 60Hz。
5、 A ir vents
Note: The fan o f th e PD s er ie s co ol in g sy st em c re at es a f lo w of a ir with the direction
from front to back. Tha t me an s th e ai r is t ak en f ro m th e op en ing on the front and is exp
elled through the opening on the front after cooling the heat sinks a nd t ra ns fo rm er.
Attention must be paid to avoid blo ck in g th es e op en in gs . A n d ne ve r pl ac e the amplifier
in which there is not suffi ci en t ai r ci rc ul at io n.
Rear Panel
1
3
2
4
5
Page 4
Operation
CH-B IN
LINK
MAIN S INPUT
120Va с 60Hz
!
SERI AL NO:
MADE I N CHINA
EART HING
CH-B OU T
CH-A OU T
LINK
CH-A IN
-
BALAN CED
30 KOHM
INPUTINPUT
SPEAK ER
IMPED ANCE
16 / 8 / 4 OHM
PIN 1+/ 2+ :
PIN 1 /2 :+ +
+
-
+ +
-
SPEAK ER
IMPED ANCE
16 / 8 / 4 OHM
PIN 1+/ 2+ :
PIN 1 /2 :+ +
+
-
BALAN CED
30 KOHM
X
Specification
S P E C I F I C AT I O N
0.775Vrms
30 kΩ (Balance)
20Hz-20kHz (±0.5dB)
≥ 20 V/us
> 95 dB
0.08% @ 1 kHz
0.1% 8 ohms, 1 kHz/1W@
> 250:1 (@1 kHz / 8Ω)
< 60dB @ 1 kHz
Weight
Model
Output Power
Test Condition
Signal Frequency: 1 kHz
Max Distortion: 1%
Ele c tric a l C hara c teris t ics
Input
Sensitivity
Frequency Response
Slew Rate
Damping Factor
Crosstalk
S/N Ratio
IMD-SMPTE
THD+N
Dimensions
Protection
Operating
Input/Output Connectors
Mains Voltage & Frequency
Unit P e r f o r m a n ce
483x132 mm)x495(
Amplifier
Loudspeaker
Power On/Off Protection
Thermal Protection
Overload Protection
Short-Circuit Protection
Clip / DC Offset Protection
Front Panel
Outputs
Inputs
Rear Panel
Power switch
Channel A/B volume control
Earthing / Floating switch
Female XLR connector input and Male XLR
SPEAKON and BINDING-POSTsocket
According to the back labelling
Impedance
DP3200
DP2240
DP1800
DP1400
1600W
1300W
700W
1000W
1000W
850W
450W
650W
37 kg
34 gk
30 gk
34 gk
4Ω
8Ω
Page 5
DIGISYNTHETIC CO.,LTD
Http://www.digisynthetic.com
E-mail:sales@digisynthetic.com
marketing@digisynthetic.com
VERSION：V1.0
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