*Rack mount products in the Western Hemisphere (North America, South America, and the Caribbean)
do not have handles installed due to customer preference.
MULTI CHANNEL POWER AMPLIFIER
Welcome
Welcome
A personal welcome to you from the management and employees of Inter-M
All of the co-workers here at Inter-M are dedicated to providing excellent products with inherently good value,
and we are delighted you have purchased one of our products.
We sincerely trust this product will provide years of satisfactory service, but if anything is not to your complete
satisfaction, we will endeavor to make things right.
Welcome to Inter-M, and thank you for becoming part of our worldwide extended family!
This symbol is int ended to ale rt the user to the
CAutION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
AUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.
C
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
Caution: To prevent electric shock do not use this (polarized) plug with
Attentions: Pour prévenir les chocs électriques ne pas utiliser cette
WARNING
To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
*WARNING FOR YOUR PROTECTION PLEASE READ THE FOLLOWING-WATER AND MOISTURE: Unit should not be used near water(e.g.
near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc). Care should be taken so than objects do
not fall and liquids are not spilled into the enclosure through openings.
*CLASS 2 WIRING (Adjacent to speaker terminal): The speaker output of this apparatus can exceed 10 Watts and could be a shock injury.
Connection to speakers should be performed by a skilled person.
*Do not install this equipment in a confined space such as a book case or similar unit.
*This apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such vases, shall be placed on the apparatus.
*This apparatus shall be connected to a mains socket outlet with a protective earthing connection.
It has heed to be easy to disconnect the device. To disconnect the device from power, separate AC input cable from inlet or unplug the AC Cord.
*
CAutION
*These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock, do not perform any servicing
other than that contained in the operating instructions unless you are qualified to do so.
NOtE
*This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will
be required to correct the interference at his own expense.
presence of uninsulated “dangerous voltage” within
the product’s enclosur e that ma y be of sufficient
magnitude to constitute a risk of electric shock to
persons.
This symbol is int ended to ale rt the user to the
presence of important operation and maintenance
(servicing) instructions in the literature accompanying
the appliance.
an extension cord, receptacle or other outlet unless the blades
can be fully inserted to prevent blade exposure.
fiche polarisée avec un prolongateur, une prise de courant
on une autre sortie de courant, sauf si les lames peuvent
étre inséré es à fond sans en lai sser aucune par tie à
découvert.
Although your DPA-4300M is neither complicated nor difficult to operate, we recommend you take a few
minutes to read this brief manual and familiarize yourself with the important information regarding product
features, setup and operation.
As with most electronic devices, we strongly recommend you to retain the original packaging. In the unlikely
event the product must be returned for servicing, the original packaging (or reasonable equivalent) is required.
Installation
Installation
Environment
Never place this product in an environment which could alter its performance or reduce its service life. Such
environments usually include high levels of heat, dust, moisture, and vibration.
IMPORTANT SAFETY INSTRUCTIONS
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including
amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide
blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult
an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and
the point where they exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus.
When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been
damaged in any way, such as power-supply cord or plug is damaged, liquid has
been spilled or objects have fallen into the apparatus, the apparatus has been
exposed to rain or moisture, does not operate normally, or has been dropped.
2
S3125A
DPA-4300M
MULTI CHANNEL POWER AMPLIFIER
Caution when installing RACK
Caution when installing RACK
lease be aware the following items when installing this device into the rack.
P
1. Make air circulation in the rack proper. Open the rear panel of the rack or install the fan.
2. Install blank panels between every 5 amps when installing several amps to provide proper air circulation.
3. Blank panel included in the DPA-4300M should be installed in the channel which is not used among the sets.
DPA-4300M
3
MULTI CHANNEL POWER AMPLIFIER
Features
Features
High efficiency and low heat generation design using digital amp (OPT LESS) and SMPS
-
- Detachable and hot swappable module type for easy maintenance
- Individual power for each module. Amp operations of all channels will not be stopped due to single power
failure.
- SLEEP mode minimizes the power consumption because by automatically switching to power saving mode.
- LCD and LED indicators which display the status of amp in each channel. Information of select switch located in
the rear panel and operation status of amp can be checked easily.
- Remote site monitoring and control throughout contact point and TCP/IP. With contact point and TCP/IP,
monitoring and control about various situations is possible.
- Bridge function. It supports Output Bridge between two channels to make maximum 600Wx2 output possible.
- CASCADE function. It distributes the input to other channel to make multi channel broadcastings possible with
only one input.
- Support selectable two signal inputs. Use PGM (Normal and PRI (Priority) inputs. It can response to emergency
broadcasting.
- Apply HPF, total three selects are possible. It can response to various PA speakers.
※OFF mode has two select types. (OFF/65Hz, factory setting is 65Hz)
- Apply protection circuits about over heat of amp (OTP), output short circuit (OCP), DC output (DCP) and power
failure (PFP). It uses the protection circuit for errors which can occur during the installation and operation.
- Apply module socket contact point protection circuit. Attach and detach of the module is possible while amp is
operated.
Constitution and Accessory
Constitution and Accessory
1. DM-4300M set x 1
2. DM- 300 module x 1
3. AC power cable x 1
4. 4P terminal block x 2
5. 5P terminal block x 4
6. 6P terminal block x 8
7. Screw x 4 for rack installation
8. DPA-4300M module Blank Panel x 3
4
DPA-4300M
Front Panel
1 2 34
7
6 5
Front Panel
MULTI CHANNEL POWER AMPLIFIER
1. STATUS LED
2. POWER SWITCH
3. LCD
4. VOLUME SWITCH
- PROT : it will be on if protection circuit is operated due to error in the channel.
- CLIP : it will be on if error occurs in the channel.
- SIGNAL : it will be on if input signal is detected in the channel.
- SLEEP : If input signal is not detected for certain times in the channel, it will be switched to the SLEEP mode
and LED will be on. If input is detected again, it will be cleared.
- ST-BY : It will be on when the module is in Stand-by mode. It will be cleared if the module is available for
broadcasting by pushing the power switch.
When switch is on, each module will be switched from ST-BY to broadcasting mode, and when it is off, it
will be switched to ST-BY, Stand-By.
It displays the information about the operation and control of the module.
- DPA-4300M supports two inputs; normal (PGM) and priority (PRI) inputs.
- If volume up switch or volume down switch is pushed, PGM volume can be adjusted. Volume value will be
displayed on LCD.
- If volume up and down, switches are pushed together for 2 seconds, volume will be locked. Cleared if by
pushing for 2 seconds again.
- PGM MUTE will be set through GUI during TCP/IP communication.
※ PGM MUTE will be cleared if volume up/down switches are pushed or module power is off/on.
DPA-4300M
5
MULTI CHANNEL POWER AMPLIFIER
5. PRI VOLUME SELECTION SWITCH (CHECK IP)
- DPA-4300M supports two inputs; normal (PGM) and emergency (PRI). If volume up or down switch is
ushed while PRI switch is pushed, PRI volume can be adjusted. Volume value will be displayed on LCD.
p
- If PRI switch is pushed for 5 seconds, current IP value can be checked. It will be restored if PRI switch is
pushed again or after certain times.
- PRI input will be available if PRI SEL of rear side is on.
※ HPF will be set to 400Hz when inputting the PRI.
6. TEST SWITCH
It is the switch which can test the protection of module. Protection circuit will be operated while pushing it
and speaker output will be off.
7. VENT
It is the ventilation air path to cool the inside temperature. Caution: Not to block the vent. Clean regularly.
※ Install the blank panel in the unused channel because failure due to foreign substance may occur.
6
DPA-4300M
LCD Panel
1
5
1
1
1
2
13
1
4
1
5
16
9
1
0
4
6
7
8
2
3
LCD Panel
MULTI CHANNEL POWER AMPLIFIER
1. FAN SPEED
It displays the fan speed installed in the rear of each module. Speed will be adjusted automatically
depending on temperatures of amp heat sink.
2. HEAT SINK TEMP
It displays the temperature of amplifier heat sink.
3. LOW CUT (HPF)
It Indicates the HPF switch selections of rear panel. (OFF : OFF, LOW CUT 1 : 200Hz, LOW CUT 2 : 400 Hz)
4. PGM MUTE
It indicates if the PGM volume is in mute.
5. VOLUME LOCK
It indicates the lock status of volume.
6. PRI STATUS BOX
It indicates if PRI, Priority program is selected.
7. PRI VOLUME LEVEL
It indicates the volume value of the PRI, Priority input.
It displays CC when amplifiers are in CASCADE mode.
8. ID
It will be on when checking out the set IP in the front panel.
9. PGM VOLUME LEVEL
It indicates the volume value of PGM input.
It displays BR when amplifiers are in BRIDGE mode.
DPA-4300M
7
MULTI CHANNEL POWER AMPLIFIER
10. PGM STATUS BOX
It indicates normal input mode.
11. FAN FAULT
It indicates FAN failure.
12. OVER TEMP
It indicates that the amplifier is in protection mode due to overheat.
13. AMP FAULT
It indicates amplifier failure.
14. OVER CURR
Indicator will be on when over current occurs due to short circuit of speaker output, etc
15. RUN (NORMAL OPERATION CHECK)
This indicates that the amplifier is operated normally.
16. RUN (NORMAL OPERATION CHECK)
It indicates whether AC or DC power is being used.
Input power operation display.
InputOperationStatus
ACACAC
DCDCDC
AC, DCACAC, DC
8
DPA-4300M
MULTI CHANNEL POWER AMPLIFIER
HPF OFF Setting method
HPF OFF Setting method
hen turning off the rear panel HPF switch, frequency can be set 65Hz or OFF in the device.
W
(Channel 1 : CN14A1, Channel 2 : CN14A2, Channel3 : CN14A3, Channel 4 : CN14A4, factory setting is 65Hz)
OFF65Hz
DPA-4300M
9
MULTI CHANNEL POWER AMPLIFIER
12
5
3
4
10981176121314 15
Rear Panel
Rear Panel
1. INPUT/OUTPUT CONTACT POINT TERMINAL FOR REMOTE CONTROLS
It is a contact point which can monitor and control the amp status from the remote site.
2. INPUT TERMINAL
It is a signal input terminal. It supports PGM and PRI inputs. It is PGM +, PGM -, GND, PRI -, PRI + with
balance inputs.
3. BRIDGE MODE SELECT SWITCH
When switch is on, two channels will be bridged to make maximum 600Wx2 possible. (Channel 1-2,
Channel 3-4)
4. CASCADE MODE SELECT SWITCH
It distributes the channel input into other channels. It is a switch to make same broadcasting cascaded with
one input and volume in other channels.
Switch ONDetail
CH2Input and volume of CH1 is distributed to CH2.
CH3Input and volume of CH2 is distributed to CH3.
CH4Input and volume of CH3 is distributed to CH4.
CH2, CH3Input and volume of CH1 is distributed to CH2 and CH3.
CH3, CH4Input and volume of CH2 is distributed to CH3 and CH4.
CH2, CH4
CH2, CH3, CH4Input and volume of CH1 is distributed to CH2, 3, 4.
Input and volume of CH1 is distributed to CH2, Input and volume of CH3 is
distributed to CH4.
5. HPF SELECT SWITCH
Three available modes: OFF, 200Hz and 400Hz with HPF select switch.
※ Selection of HPF is only available in PGM input. PRI input is fixed to 400Hz.
10
DPA-4300M
MULTI CHANNEL POWER AMPLIFIER
6. ETHERNET PORT
RJ-45 jack ETHERNET network terminal with. (Use Direct cable.)
7. IP ADDRESS SETTING SWITCH
IP address ETHERNET communications setup switch.
8. AC POWER TERMINAL
It is an AC power code connecting terminal. Using power is AC 220V/60Hz.
9. AC FUSE
It is an AC main power fuse.
10. AC ST-BY FUSE
It is an AC ST-BY power fuse.
11. DC ST-BY FUSE
It is a DC ST-BY power fuse.
12. DC POWER TERMINAL
It is emergency backup battery (24V) connecting terminal. It uses connected backup battery in case of black
out of AC power.
※ When DC power is operated, amp will be switched to broadcasting status regardless of power switch or
contact point status of the module.
13. SPEAKER TERMINAL
It is a speaker output terminal. Normal operation is possible when it is on.
14. OUTPUT VOLTAGE SELECT SWITCH
It is a switch which can select the output speaker line voltage of amp output. When it is on, it is 70V, and
100V for OFF.
15. TEMPERATURE DISPLAY METHOD SELECT SWITCH
Select the Celsius and Fahrenheit temperature display of LCD. On selects Fahrenheit, and Off for Celsius.
DPA-4300M
11
MULTI CHANNEL POWER AMPLIFIER
321
654
I/O Contact Point Terminal for Remote Control
I/O Contact Point Terminal for Remote Control
1. FAN FAULT CONTACT POINT OUTPUT
It displays the status of fan in each channel.
CONTACT ON (SHORT)CONTACT OFF (OPEN)
REMOTE POWER CONTACT INPUTONOFF
PRIORITY SELECT CONTACT INPUTONOFF
AC FAULT CONTACT OUTPUTAC FAULTAC OK
DC FAULT CONTACT OUTPUTDC FAULTDC OK
AMP FAULT CONTACT OUTPUTAMP FAULTAMP OK
FAN FAULT CONTACT OUTPUTFAN FAULTFAN OK
2. DC FAULT CONTACT POINT OUTPUT
It displays the status of DC power in each channel.
3. REMOTE POWER CONTACT POINT INPUT
It can turn on the amp in ST-By remotely throughout contact point. Amp operated remotely throughout the
contact point will not be switched to ST-BY even if power button of the module is off. It will be restored if
contact point is cleared.
4. AMP FAULT CONTACT POINT OUTPUT
It displays the status of amp in each channel.
5. PRIORITY SELECT CONTACT POINT INPUT
It displays the status of AC power in each channel.
6. AC FAULT CONTACT POINT OUTPUT
When contact point is off, PGM input will be output to the speaker, and contact point is on, PRI input will be
output to speaker. PRI input can be selected only by contact point.
12
DPA-4300M
MULTI CHANNEL POWER AMPLIFIER
How to Connect Speaker
How to Connect Speaker
- Installation of Speaker
When connecting the speaker, remove the power code from the condenser, and connect it to the speaker
depending on types and connecting methods of the speaker.
※ Not to connect the speaker less than rated impedance stated in below table.
MODE
NORMAL33.33 Ω16.33 Ω
BRIDGE16.67 Ω8.17 Ω
RATED IMPEDANCE
100V70V
DPA-4300M
13
MULTI CHANNEL POWER AMPLIFIER
Communication Method between devices and PCs
Communication Method between devices and PCs
1. IP ADDRESS SETUP SWITCH
It is a switch which sets up the IP Address when ETHERNET communicating.
1) Equipment ID Setup Method
- set up by using three switches in the rear panel.
- there are total three switches and first switch (1) indicates third digit, second (2) and third (3) switch
indicate fourth digit of IP Address.
192 . 168 . XX. XXX
①
②
③
- Third digit of IP Address can be set to 0~14(E) by using number one switch. 15(F) is not used.
- fourth digit of IP Address can be set to 0~255(FF) by using number two and three switches and method is
as below.
Rotary
Value
Decimal
Number
2) Example of IP ADDRESS setup
- when setting with 192 . 168 . 10 . 100
Set the third digit ‘10’ to number 1 switch ‘A(10)’.
Fourth digit ‘100’ is set to number one switch and number 2 switch is to ‘6’, and number 3 switch to 4
which is remainder. (64 )16 = (100)10 Switches are HEX Codes.
3) Caution
- when connecting one or more amps, caution not to overlap the IP address values.
When IP address are overlapped, monitoring and volume controls will not available from PC. However,
volume control with amp volume is possible.
0123456789ABCDEF
0123456789101112131415
14
DPA-4300M
MULTI CHANNEL POWER AMPLIFIER
4) How to connect PC and DPA-4300M
Connect ETHERNET terminal of PC to ETHERNET terminal in the rear panel of DPA-4300M.
-
5) Connect PC with two or more DPA-4300Ms
- Connect ETHERNET terminal of PC to ETHERNET terminal in the rear panel of DPA-4300M throughout
HUB.
DPA-4300M
15
MULTI CHANNEL POWER AMPLIFIER
+,
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Applications
Applications
16
DPA-4300M
MULTI CHANNEL POWER AMPLIFIER
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Block Diagram
Block Diagram
DPA-4300M
17
MULTI CHANNEL POWER AMPLIFIER
Specifications
Specifications
PA-4300M
D
100V 33.33ΩTHD 0.1%
Rated Output
(1kHz with AES17)
Output Voltage
Input Sensitivity
Frequency Response 1W x 4 100V/70V20Hz ~ 20kHz
T.H.D
(1kHz with AES17)
S/N (300W x 4 100V/70V)
(20kHz LPF, A-WTD)
HPFINPUT B'D HPF ON : 65Hz, -3dB ± 2dB
(300W x 4 100V/70V)
Operating Temperature-10°C ~ +40°C
Power Source120VAC, 60Hz, 220-240VAC, 50/60Hz
Power Consumption
Weight(set)
Dimensions(set)482(W) X 132(H) X 420(D)mm/19(W)x5.2(H)x11(D)in
* Design and specification are subject to be changed for the improvement of product quality without pre notice.
18
DPA-4300M
DIMENSIONS
440
420
132
482
※
MULTI CHANNEL POWER AMPLIFIER
DPA-4300M
19
MULTI CHANNEL POWER AMPLIFIER
Service
Service
Procedures
Take steps to insure the problem is not related to operator error or other products within the system. Information
provided in the troubleshooting portion of this manual may help with this process. Once it is certain that the
problem is related to the product contact your warranty provider as described in the warranty section of this
manual.
Schematic
A Schematic is available by contacting your warranty provider.
Parts List
A Parts List is available by contacting your warranty provider.
Warranty
Warranty
Warranty terms and conditions vary by country and may not be the same for all products. Terms and conditions
of warranty for a given product may be determined first by locating the appropriate country which the product
was purchased in, then by locating the product type.
To obtain specific warranty information and available service locations, contact Inter-M directly or the
authorized Inter-M Distributor for your specific country or region.
20
DPA-4300M
NOTE
Inter-M, Ltd. (Korea) began operations in 1983.
Since then, Inter-M has grown to become one of the largest manufacturers
of professional audio and commercial sound electronics equipment in the world.
Inter-M has gained worldwide recognition for its own branded products,
as well as private label manufacturing of electronics sold under other names (OEM).
The company is no longer just a Korean company, but rather a global company
that is truly international in scope, with factories and offices in Korea and China,
and sales and marketing operations located in Japan, Europe, and the U.S.A.
With more than 850 employees around the globe,
Inter-M is well-poised for further growth and expansion.
Inter-M Americas, Inc.
13875 Artesia Blvd. Cerritos, CA 90703 USA
TEL : +1-562-921-0313, FAX : +1-562-921-0370
Home Page : http://www.inter-m.net, E-mail : info@inter-m.net
Inter-M Corporation
Seoul OFFICE:653-5 BANGHAK-DONG, DOBONG-KU, SEOUL, KOREA
TEL : +82-2-2289-8140~8, FAX : +82-2-2289-8149
Home Page : http://www.inter-m.com, E-mail : overseas@inter-m.com
MADE IN KOREA
December 2013 131370
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