Inter-M DPA-430L Multi Channel Power Amplifier Manual

Operation Manual

Multi Channel Power Amplifier

DPA-430L

MULTI CHANNEL POWER AMPLIFIER

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!

CAutION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.

DO NOT REMOVE COVER (OR BACK).

NO USER-SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

This symbol is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

This symbol is intended to alert the user to the presence of important operation and maintenance

(servicing) instructions in the literature accompanying the appliance.

Caution: To prevent electric shock do not use this (polarized) plug with an extension cord, receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure.

Attentions: Pour prévenir les chocs électriques ne pas utiliser cette fiche polarisée avec un prolongateur, une prise de courant on une autre sortie de courant, sauf si les lames peuvent

étre insérées à fond sans en laisser aucune partie à découvert.

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.

*The socket-outlet shall be installed near the equipment and shall be easily accessible.

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.


Unpacking

.......................................................................................................................................2

Installation

Environment....................................................................................................................................2

Important Safety Instructions.............................................................................................................2

Features

............................................................................................................................................3

Accessories.....................................................................................................................................3

Precautions

......................................................................................................................................4

Installation Precautions

.................................................................................................................4

Front Panel

......................................................................................................................................5

Rear Panel

.......................................................................................................................................7

Connecting Speakers

.....................................................................................................................8

Applications

....................................................................................................................................9

Block Diagram

..............................................................................................................................10

Specifications

................................................................................................................................11

Dimensions ...................................................................................................................................12

Service

............................................................................................................................................13

Variations and Options

...............................................................................................................13

Warranty

.......................................................................................................................................13

DPA-430L 1


Although your DPA-430L 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.

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.

S3125A S3125A

2 DPA-430L


- 1U Rack Size

- Multi channel power amplifier

170W/8 Ω x 4 channels, 300W/4 Ω x 4 channels, 600W/8 Ω x 2 channels(Bridge Mode)

- Independent SMPS power supply for each channel

- Low power consumption, low heat dissipation and light weight

- High pass filter switch (–3dB at 50Hz)

- Protection circuitry (over heat, over current, speaker short, DC output)

- Balanced input

Accessories

- AC power cord x1

- 3P Terminal Block x 4

- 4P Terminal Block x 2

- Rack mount screws x 4

- Foot x 4

DPA-430L 3


1. Do not connect outputs of two or more channels in parallel.

2. Do not connect speakers with a smaller impedance than specified to avoid the damage of the unit.

3. Keep the input cable away from the output cable.

1. When mounting the unit in a rack, the inside of the rack must be sufficiently ventilated.

To achieve sufficient ventilation, remove panel on the rear of the rack or use Fan at the top of the rack.

2. When mounting the unit in the rack, mount a Blank Panel at the top and the bottom of the rack and above and below every 5 units.

5 units

5 units

POWER

PROT CLIP -10dB -30dB

CH 1

MIN

VOLUME

MAX HPF

400Hz

65Hz

POWER PROT CLIP -10dB -30dB

CH 1

MIN

VOLUME

MAX

HPF

400Hz

65Hz

POWER


CH 1

MIN

VOLUME

MAX HPF


CH 1

MIN

VOLUME

MAX

HPF

400Hz

65Hz


CH 1

MIN

VOLUME

MAX HPF

400Hz

65Hz


CH 2

MIN

VOLUME

MAX HPF

400Hz

65Hz


CH 3

MIN

VOLUME

MAX HPF

400Hz

65Hz


CH 2

MIN

VOLUME

MAX

HPF

400Hz

65Hz


CH 2

MIN

VOLUME

MAX HPF


CH 3

MIN

VOLUME

MAX

HPF

400Hz

65Hz


CH 3

MIN

VOLUME

MAX HPF


CH 2

MIN

VOLUME

MAX

HPF

400Hz

65Hz


CH 3

MIN

VOLUME

MAX

HPF

400Hz

65Hz


CH 2

MIN

VOLUME

MAX HPF

400Hz

65Hz


CH 3

MIN

VOLUME

MAX HPF

400Hz

65Hz


CH 4

MIN

VOLUME

MAX HPF

400Hz

65Hz


CH 4

MIN

VOLUME

MAX

HPF

400Hz

65Hz


CH 4

MIN

VOLUME

MAX HPF


CH 4

MIN

VOLUME

MAX

HPF

400Hz

65Hz


CH 4

MIN

VOLUME

MAX HPF

400Hz

65Hz


CH 1

MIN VOLUME MAX

HPF

400Hz

65Hz

POWER


CH 1

MIN

VOLUME

MAX HPF

400Hz

65Hz


CH 1

MIN VOLUME MAX

HPF

400Hz

65Hz

POWER


CH 1

MIN

VOLUME

MAX HPF

400Hz

65Hz


CH 1

MIN VOLUME MAX

HPF

400Hz

65Hz


CH 2

MIN VOLUME MAX

HPF

400Hz

65Hz


CH 3

MIN VOLUME MAX

HPF

400Hz

65Hz


CH 2

MIN

VOLUME

MAX HPF

400Hz

65Hz


CH 3

MIN

VOLUME

MAX HPF

400Hz

65Hz


CH 2

MIN VOLUME MAX

HPF

400Hz

65Hz


CH 3

MIN VOLUME MAX

HPF

400Hz

65Hz


CH 2

MIN

VOLUME

MAX HPF

400Hz

65Hz


CH 3

MIN

VOLUME

MAX HPF

400Hz

65Hz


CH 2

MIN VOLUME MAX

HPF

400Hz

65Hz


CH 3

MIN VOLUME MAX

HPF

400Hz

65Hz


CH 4

MIN VOLUME MAX

HPF

400Hz

65Hz


CH 4

MIN

VOLUME

MAX HPF

400Hz

65Hz


CH 4

MIN VOLUME MAX

HPF

400Hz

65Hz


CH 4

MIN

VOLUME

MAX HPF

400Hz

65Hz


CH 4

MIN VOLUME MAX

HPF

400Hz

65Hz

Blank panel

4 DPA-430L


1 2 3

ON

OFF


CH 1

MIN

VOLUME

MAX

HPF

50Hz

OFF


CH 2

MIN

VOLUME

MAX

HPF

50Hz

OFF

4


CH 3

MIN

VOLUME

MAX

HPF

50Hz

OFF

5 6


CH 4

MIN

VOLUME

MAX

HPF

50Hz

OFF

DPA-430L

7

1. POWER SWITCH

Pressing this switch turns the unit on.

Pressing it again turns the unit off.

2. POWER LED

When the unit is powered on, the Power LED lights Green.

When the power is off, the Power LED lights Red.

3. OUTPUT LEVEL INDICATOR

The –30dB LED lights green when an output signal level exceeds about -30dB.

The –10dB LED lights green when an output signal level exceeds about -10dB.

The CLIP LED lights amber when an output signal clips (distortion occurs).

NOTE: Do not operate the unit with the CLIP LED continuously on.

Decrease the volume level to avoid signal clipping.

4. PROTECTION INDICATOR

PROT indicator lights red when the protection circuitry is activated.

When the power is turned on, the PROT indicator lights for about 2 seconds.

5. VOLUME CONTROL

Adjust the input level of each channel.

To increase the volume level, turn the volume clockwise.

DPA-430L 5


6. HIGH PASS FILTER SWITCH

Pressing the switch turns on the high pass filter.

The corner frequency (-3dB) is 20Hz when the high pass filter switch is off or 50Hz when the high pass filter switch is on.

7. VENTILATION

It is the air vents. Do not stuck the ventilation panel to secure enough cooling.

Inside the ventilation panel, there is a dust filter. To clean the filter, remove the front panel and clean the dust filter.

6 DPA-430L


1 2

OFF ON

GND

OFF ON

GND

GND

GND

CH 2 CH 1

CH 4 CH 3

INPUT

FAN 2

3

(4 )

CH 4

(4 )

CH 3

+ - + -

OUTPUT

(4 )

CH 2

(4 )

CH 1

+ - + -

BRIDGE 3/4 (8 ) BRIDGE 1/2 (8 )

FAN 1

4

AC INPUT

5

1. BRIDGE SWITCH

- Brg 1/2 ON/OFF switch : Bridge the channel 1 and the channel 2.

- Brg 3/4 ON/OFF switch : Bridge the channel 3 and the channel 4.

2. INPUT TERMINALS

Connect signal input cables to these terminals.

The input circuitry is balanced type. (+ : Hot, - : Cold, GND: Ground)

3. SPEAKER OUTPUT TERMINALS

Connect speaker cables to these terminals.

NOTE: Connecting speakers with a smaller impedance than specified could damage the unit.

4. FAN

It is the cooling fan vents.

When inner temperature reaches the certain level, the speed of the fan gets faster.

Please give attention not to block the vents when install the unit.

5. AC INLET

Connect the supplied power cord to this inlet.

DPA-430L 7


Before connecting speakers, disconnect the AC power cable. Note the proper connecting terminals as below.

Normal Mode

(4 )

CH 4

(4 )

CH 3

+ - + -

(4 )

CH 2

(4 )

CH 1

+ - + -

(4 )

CH 4

(4 )

CH 3

+ - + -

Bridge Mode

(4 )

CH 2

(4 )

CH 1

+ - + -

BRIDGE 3/4 (8 ) BRIDGE 1/2 (8 )

Only connect speakers with an impedance equal to or greater than those specified below.

Mode

Normal

Bridge

Speaker Output

4 Channels

2 Channels

Speaker Impedance

≥ 4 Ω

≥ 8 Ω

NOTE : 1. Connecting speakers with smaller impedance than specified could damage the unit.

2. Do NOT connect low impedance speakers than the specified speaker impedance, it could causes damage to the unit.

3. Keep the output cable away from the input cable.

8 DPA-430L


BRIDGE

1/2

OFF ON

BRIDGE

3/4

OFF ON

GND

GND

GND

GND

CH 2 CH 1

CH 4 CH 3

INPUT

FAN 2

(4 )

CH 4

+ -

(4 )

CH 3

+ -

OUTPUT

(4 )

CH 2

+ -

(4 )

CH 1

+ -

BRIDGE 3/4 (8 ) BRIDGE 1/2 (8 )

FAN 1

AC INPUT

DPA-430L

SE-15 SE-15 SE-15 SE-15

DPA-430L 9


10 DPA-430L


Rated Output Power

DAP-430L

170W/8 Ω x 4 channels

300W/4 Ω x 4 channels

600W/8 Ω x 2 channels(Bridge Mode)

T.H.D (AES17)

1

3

Prated (300W, 1kHz)

Prated (100W, 1kHz)

High Frequency Response (+1, -3dB)

Low Frequency Response

High Pass Filter Off (-3dB ±2dB)

High Pass Filter On (-3dB ±2dB)

S/N (20kHz LPF, A-WTD)

Input Sensitivity/Impedance

Operating Temperature

Power Source

Power Consumption

Weight (Set)

Dimensions (Set)

* Specifications and design subject to change without notice.

Less than 0.1%

Less than 0.03%

Over than 20kHz

20Hz

50Hz

Better than 100dB

1V / 10k Ω Balance

-10°C ~ +40°C

120VAC or 220–240VAC, 50/60Hz

(Differs depends on country)

280W (1/8 P max)

9.6kg / 21.2lb

482(W) x 44(H) x 420(D)mm/19(W) x 1.7(H) x 16.5(D)in

DPA-430L 11


※ DIMENSIONS

44 0 44

12 DPA-430L

482


Procedures

Take steps to insure the problem is not related to operator error or other products within the system. 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.

Variations

Variations of this product exist to reflect the variations in AC power requirements throughout the world. Product supplied through local sources are compatible with local AC power requirements.

Options

No optional items are available for this product.

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.

DPA-430L 13

NOTE

14 DPA-430L

NOTE

NOTE

12 DAP-430L

DAP-430L 3

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 : [email protected]

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 : [email protected]

MADE IN KOREA

June 2011 127520

Inter-M DPA-430L Multi Channel Power Amplifier Manual

Operation Manual

Multi Channel Power Amplifier

CAutION

WARNING

Unpacking

Installation

Features

Precautions

Installation Precautions

Front Panel

Rear Panel

Connecting Speakers

Applications

Block Diagram

Specifications

Service

Variations and Options

Warranty

Environment

IMPORTANT SAFETY INSTRUCTIONS

Accessories

Procedures

Variations

Options

MADE IN KOREA

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