TOA Electronics DA-550F CE, DA-500FH CE User Manual

1.4 Mb

OPERATING INSTRUCTIONS

MULTICHANNEL POWER AMPLIFIERS

DA-550F CE

DA-500FH CE

Note: The figure shows the DA-550F.

Thank you for purchasing TOA's Multichannel Power Amplifier.

Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.

TABLE OF CONTENTS

 

1.

SAFETY PRECAUTIONS ...............................................................................

3

2.

GENERAL DESCRIPTION .............................................................................

4

3.

FEATURES ..........................................................................................................

4

4.

HANDLING PRECAUTIONS ..........................................................................

5

5.

INSTALLATION PRECAUTIONS .................................................................

5

6.

NOMENCLATURE AND FUNCTIONS

 

 

Front .........................................................................................................................

6

 

Rear ..........................................................................................................................

7

7.

SETTINGS AND CONNECTIONS

 

 

7.1. Switch Settings and Speaker Connections

 

 

7.1.1. When using the DA-550F .........................................................................

8

 

7.1.2. When using the DA-500FH ....................................................................

10

8.

REMOVABLE TERMINAL PLUG CONNECTION ..................................

11

9.

INPUT SENSITIVITY SETTING ....................................................................

12

10. PROTECTION OPERATION LIST ...............................................................

12

11. TAMPER-PROOF CAP ATTACHMENT ....................................................

13

12. CLEANING THE FILTER ................................................................................

13

13. DIMENSIONAL DIAGRAM ............................................................................

13

14. BLOCK DIAGRAMS

 

 

14.1. DA-550F .........................................................................................................

14

 

14.2. DA-500FH ......................................................................................................

14

15. HOW TO USE THE CONTROL/MONITOR TERMINALS

 

 

15.1. Control Terminal (Input) .................................................................................

15

 

15.2. Monitor Terminal (Output) ..............................................................................

15

 

15.3. About Pin 7 of the Control/Monitor Terminals ................................................

16

 

15.4. Terminal Pin Arrangement .............................................................................

16

 

15.5. Connection Cable and Maximum Cable Length .............................................

16

 

15.6. RJ45 Connector's Pin Arrangement and Cable Color Codes ........................

17

16. SPECIFICATIONS

 

 

16.1. DA-550F CE ...................................................................................................

18

 

16.2. DA-500FH CE ................................................................................................

19

2

1. SAFETY PRECAUTIONS

Before installation or use, be sure to carefully read all the instructions in this section for correct and safe operation.

Be sure to follow all the precautionary instructions in this section, which contain important warnings and/or cautions regarding safety.

After reading, keep this manual handy for future reference.

Safety Symbol and Message Conventions

Safety symbols and messages described below are used in this manual to prevent bodily injury and property damage which could result from mishandling. Before operating your product, read this manual first and understand the safety symbols and messages so you are thoroughly aware of the potential safety hazards.

WARNING

CAUTION

Indicates a potentially hazardous situation which, if mishandled, could result in death or serious personal injury.

Indicates a potentially hazardous situation which, if mishandled, could result in moderate or minor personal injury, and/or property damage.

WARNING

When Installing the Unit

Do not expose the unit to rain or an environment where it may be splashed by water or other liquids, as doing so may result in fire or electric shock.

Use the unit only with the voltage specified on the unit. Using a voltage higher than that which is specified may result in fire or electric shock.

Do not cut, kink, otherwise damage nor modify the power supply cord. In addition, avoid using the power cord in close proximity to heaters, and never place heavy objects -- including the unit itself -- on the power cord, as doing so may result in fire or electric shock.

Be sure to replace the unit's terminal cover after connection completion. Because the voltage of up to 100 V is applied to the high impedance speaker terminals, never touch these terminals to avoid electric shock. (DA-500FH only)

External wiring connected to the terminals marked with requires installation by an instructed person.

The apparatus shall be connected to a mains socket outlet with a protective earthing connection.

When the Unit is in Use

Should the following irregularity be found during use, immediately switch off the power, disconnect the power supply plug from the AC outlet and contact your nearest TOA dealer. Make no further attempt to operate the unit in this condition as this may cause fire or electric shock.

·If you detect smoke or a strange smell coming from the unit.

·If water or any metallic object gets into the unit

·If the unit falls, or the unit case breaks

·If the power supply cord is damaged (exposure of the core, disconnection, etc.)

·If it is malfunctioning (no tone sounds.)

To prevent a fire or electric shock, never open nor remove the unit case as there are high voltage components inside the unit. Refer all servicing such as modification inside the unit to qualified service personnel.

Do not place cups, bowls, or other containers of liquid or metallic objects on top of the unit. If they accidentally spill into the unit, this may cause a fire or electric shock.

Do not insert nor drop metallic objects or flammable materials in the ventilation slots of the unit's cover, as this may result in fire or electric shock.

Do not touch a plug during thunder and lightning, as this may result in electric shock.

CAUTION

When Installing the Unit

Never plug in nor remove the power supply plug with wet hands, as doing so may cause electric shock.

When unplugging the power supply cord, be sure to grasp the power supply plug; never pull on the cord itself. Operating the unit with a damaged power supply cord may cause a fire or electric shock.

When moving the unit, be sure to remove its power supply cord from the wall outlet. Moving the unit with the power cord connected to the outlet may cause damage to the power cord, resulting in fire or electric shock. When removing the power cord, be sure to hold its plug to pull.

Avoid installing the unit in humid or dusty locations, in locations exposed to the direct sunlight, near the heaters, or in locations generating sooty smoke or steam as doing otherwise may result in fire or electric shock.

To avoid electric shocks, be sure to switch off the unit's power when connecting speakers.

3

The unit is designed exclusively to be mounted in an equipment rack. Be sure to follow the instructions below when rack-mounting the unit. Failure to do so may cause a fire or personal injury.

·Install the equipment rack on a stable, hard floor. Fix it with anchor bolts or take other arrangements to prevent it from falling down.

·The supplied rack-mounting screws can be used for the TOA equipment rack only. Do not use them for other racks.

·When installing the unit in a rack other than that of TOA, be sure to use the screws with a diameter of over 5 mm and length of over 12 mm to mount the unit.

·When connecting the unit's power cord to an AC outlet, use the AC outlet with current capacity allowable to the unit.

When the Unit is in Use

Make sure that all volume controls are set to minimum position before power is switched on. Loud noise produced at high volume when power is switched on can impair hearing.

Do not operate the unit for an extended period of time with the sound distorting. This is an indication of a malfunction, which in turn can cause heat to generate and result in a fire.

Contact your TOA dealer as to the cleaning. If dust is allowed to accumulate in the unit over a long period of time, a fire or damage to the unit may result.

If dust accumulates on the power supply plug or in the wall AC outlet, a fire may result. Clean it periodically. In addition, insert the plug in the wall outlet securely.

Switch off the power, and unplug the power supply plug from the AC outlet for safety purposes when cleaning or leaving the unit unused for 10 days or more. Doing otherwise may cause a fire or electric shock.

An all-pole mains switch with a contact separation of at least 3 mm in each pole shall be incorporated in the electrical installation of the building.

The lighting flash with arrowhead symbol, within an equilateral triangle, 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.

2. GENERAL DESCRIPTION

TOA's DA-550F Multichannel Power Amplifier features high power handling of 550 W x 4 channels (4 Ω output) or 350 W x 4 channels (8 Ω output) and durability. Besides, its channels 1 and 2, and 3 and 4 are made available for bridge connection individually, allowing it to be used as a 1,100 W (8 Ω) x 2 channels stereo amplifier or as a 3-channel amplifier comprised of 1,100 W (8 Ω) + 550 W (4 Ω) x 2 channels.

The DA-500FH Multichannel Power Amplifier features high power handling of 500 W (100 V line) x 4 channels (20 Ω output) and durability.

Their wide range of applications include stores and permanent sound systems.

3. FEATURES

2U rack mounting size*.

Low power consumption and light weight.

An input signal to Channel 1 can be routed to all channels, and the output level adjusted using the input level control for each channel.

Electronically-balanced inputs.

Input terminals employ removable terminal blocks and XLR type connectors to provide maximum connection ease.

Input/output status LED indicators for each channel.

Built-in protection circuitry disconnects the output when a short circuit, overload, or unusual temperature rise occurs.

Equipped with the terminals used for internal information monitoring (power supply, protection status, and fan operation) and power ON/OFF control from external equipment.

* 1U size = 44.5 mm (reference size)

4

4. HANDLING PRECAUTIONS

Keep the input cable away from the output cable. If installed close to each other, oscillation could occur.

To avoid unit failures, never connect outputs of 2 or more units in parallel.

Only connect speakers with an impedance equal to or greater than those specified. Connecting speakers with a smaller than specified impedance could cause damage to the unit.

Periodically clean the filter located inside the ventilation panel on the unit's front panel. If the filter becomes clogged, heat will become trapped inside the enclosure.

Install the unit in locations where the temperature is between –10°C and +40°C and the moisture is less than 90%RH (no dew condensation must be formed).

To clean, be sure to first switch off the unit's power, then wipe with a dry cloth. When the unit gets very dirty, use a cloth damped in a neutral cleanser. Never use benzene, thinner, alcohol, or chemically-treated cleaning cloth because such volatile liquids could deform or discolor the unit.

5. INSTALLATION PRECAUTIONS

The supplied rack-mounting screws can be used for the TOA equipment rack only. Do not use them for other racks.

When installing the unit in a rack other than that of TOA, be sure to use CAUTION the screws with a diameter of over 5 mm and length of over 12 mm to

mount the unit.

Failure to do so may cause personal injury.

The supplied power supply cord is designed for exclusive use with this unit. Never use it with other equipment.

When mounting the unit in an equipment rack, the inside of the rack must be sufficiently ventilated. To achieve sufficient ventilation, remove all panels on the rear of the rack.

When mounting the unit in the rack, also mount a Perforated Panel larger than 1U in size*:

(1)at the top and the bottom of the rack, and

(2)above and below every 5 units.

Power amplifiers

DA-550F/500FH

Perforated panel

Power amplifiers

DA-550F/500FH

* 1U size = 44.5 mm (reference size)

5

6. NOMENCLATURE AND FUNCTIONS

 

 

[Front]

 

 

 

 

3

4

5

2

1

DA-550F

 

 

 

 

3

4

5

2

1

DA-500FH

 

 

 

 

1.Power switch [ON/OFF]

Power is switched on and off with each depression of this switch.

2.Power indicator [POWER]

Lights blue when the power is switched on.

3.Input level controls

[CH 1 (BRIDGE 1), CH 2, CH 3 (BRIDGE 2), CH 4]

Adjust the input level of each channel.

When a bridge connection is made (DA-550F only)

When Channels 1 and 2 are bridgeconnected (BRIDGE 1 ON/OFF switch (10) is set to ON), the CH 1/BRIDGE 1 level control adjusts the input levels of Channels 1 and 2. In this event, the CH 2 level control cannot be used.

When Channels 3 and 4 are bridgeconnected (BRIDGE 2 ON/OFF switch (10) is set to ON), the CH 3/BRIDGE 2 level control adjusts the input levels of Channels 3 and 4. In this event, the CH 4 level control cannot be used.

4.Ventilation panel (Air Vent)

A filter is located inside the ventilation panel. To clean the filter, remove the ventilation panel. (See p. 13; Cleaning the Filter.)

5.Indicators [INPUT, OUTPUT, PEAK, PROTECT]

The indicators are as follows from left to right:

Input indicator [INPUT]

Lights green regardless of the input level control setting when an input signal level exceeds about –20 dB.

Output indicator [OUTPUT]

Lights yellow when an output level exceeds about 1 W at an 8 Ω load (DA-550F) or 20 Ω load (DA-500FH).

Peak indicator [PEAK]

Lights red when an output signal clips (distortion occurs).

Protection indicator [PROTECT]

Lights red when the protection circuitry is activated. (See p. 12; Protection Operation List.) When the power is switched on, this indicator lights for about 2 seconds and then extinguishes.

6

[Rear]

6

7

8

 

DA-550F

 

 

 

12

6

7

8

DA-500FH

12

6.AC inlet

Connect the supplied power cord to this inlet. The socket-outlet shall be installed near the equipment and the plug (disconnecting device) shall be easily accessible.

7.Control/Monitor terminals [CONTROL/MONITOR]

Connecting external equipment to these terminals makes the control and monitor functions available for channels 1 – 4 individually.

(See p.15; How to Use the Control/Monitor Terminals.)

8.Speaker output terminals (with a terminal cover) [OUTPUTS (DA-550F), OUTPUTS 100 V (DA-500FH)]

Connect speaker cables to these terminals.

9.Input terminals [INPUTS]

Electronically-balanced input terminals.

Each removable terminal block (3 pins) is internally connected in parallel to the corresponding XLR type connector.

Removable terminal block (3 pins)

H: Hot, C: Cold, E: Earth

XLR type male connector (XLR-3-31 equivalent)

Pin 1: Earth, Pin 2: Hot, Pin 3: Cold

Caution when using an XLR type plug

If a straight plug hits the rack's rear cover or wall behind the rack when it is used for connection, use the L-shaped plug instead.

9

9

10

11

10

9

9

11

10.BRIDGE ON/OFF switches (DA-550F only) [BRIDGE 1, BRIDGE 2, ON / OFF]

Used when bridge-connecting the unit's Channels 1 and 2, and Channels 3 and 4.

(See p. 8; Settings and Connections.)

4-channel input mode

Set both BRIDGE 1 and 2 switches to OFF. (factory-preset)

3-channel input mode

Set either BRIDGE 1 or 2 switches to ON. When bridge-connecting Channels 1 and 2, set BRIDGE 1 switches to ON, and BRIDGE 2 switches to ON when bridge-connecting Channels 3 and 4.

2-channel input mode

Set both BRIDGE 1 and 2 switches to ON.

Note: Be sure to first turn off the power switch when changing the BRIDGE switch settings.

11. CH 1 mode ON/OFF switch [CH 1 TO ALL, ON / OFF]

Setting this switch to ON (pressed in) transmits the Channel 1 input signal to all channels. Output signal levels can be individually adjusted with each channel's input level control (3).

Note: Be sure to first turn off the power switch when changing the CH 1 mode switch settings.

12. Functional ground terminal [SIGNAL GND]

Hum noise may be generated when external equipment is connected to the unit. Connecting this terminal to the functional ground terminal of the external equipment may reduce the hum noise.

Note: This terminal is not for protective earth.

7

7. SETTINGS AND CONNECTIONS

CH 1 mode ON/OFF switch

BRIDGE 2 ON/OFF switch

BRIDGE 1 ON/OFF switch

(DA-550F only)

(DA-550F only)

[Rear panel]

Speaker output terminals

Input terminals

Note: The figure shows the DA-550F.

(with a terminal cover)

 

 

Step 1. Switch off the unit's power.

Step 2. Set the BRIDGE ON/OFF switches (DA-550F only) and CH 1 mode ON/OFF switch.

Step 3. Connect the sound source equipment to the Input terminals.

Note: Refer to p. 11 for the removable terminal plug connection.

Step 4. Connect speakers to the Speaker output terminals.

4-1. Unscrew the output terminal cover.

4-2. Strip 10 mm of insulative jacket from the end of the speaker cable, as shown in the figure at right.

10 mm

4-3. Connect speaker cables to the output terminals.

4-4. Replace the output terminal cover in place.

Be sure to replace the unit's terminal cover after connection completion. WARNING Because high voltage is generated at the speaker output terminals,

never touch these terminals to avoid electric shock. (DA-500FH only)

7.1. Switch Settings and Speaker Connections

7.1.1. When using the DA-550F

[4 inputs - 4 outputs] (factory-preset)

CH4 CH3 CH2 CH1

- + - + - + - +

CH1

Switch

Setting

Speaker output terminals

CH1

BRIDGE 1

OFF

 

 

 

CH2

BRIDGE 2

OFF

4 – 8 Ω

CH2

CH 1 mode

OFF

 

 

4 – 8 Ω

CH3

 

 

CH3

 

 

 

CH4

 

 

4 – 8 Ω

 

 

 

CH4

 

 

4 – 8 Ω

 

 

 

8

[1 input - 4 outputs]

CH1

CH1

CH2

CH3

CH4

[2 inputs - 2 outputs]

CH1

CH1

CH2

CH3

CH3

CH4

[1 input - 2 outputs]

CH1

CH1

CH2

CH3

CH4

[3 inputs - 3 outputs (1)]

CH1

CH1

CH2

CH2

CH3

CH3

CH4

[3 inputs - 3 outputs (2)]

CH1

CH1

CH2

CH3

CH3

CH4

CH4

Switch

Setting

 

 

BRIDGE 1

OFF

 

 

BRIDGE 2

OFF

 

 

CH 1 mode

ON

 

 

Switch

Setting

BRIDGE 1

ON

BRIDGE 2

ON

 

 

CH 1 mode

OFF

 

 

Switch

Setting

 

 

BRIDGE 1

ON

 

 

BRIDGE 2

ON

 

 

CH 1 mode

ON

CH4 CH3 CH2 CH1

-+ - + - + - +

Speaker output terminals

4 – 8 Ω

4 – 8 Ω

4 – 8 Ω

4 – 8 Ω

Speaker output terminals

BRIDGE 2 -

+

-

+ BRIDGE 1

8 Ω

8 Ω

Speaker output terminals

BRIDGE 2 -

+

-

+ BRIDGE 1

8 Ω

8 Ω

 

 

 

CH2

CH1

 

 

 

 

- +

- +

 

Switch

Setting

 

 

Speaker output terminals

 

 

 

 

BRIDGE 1

OFF

BRIDGE 2 -

+

4

– 8 Ω

BRIDGE 2

ON

 

 

 

 

 

 

CH 1 mode

OFF

 

 

4

– 8 Ω

 

 

 

 

 

 

 

 

8

Ω

CH4 CH3

-+ - +

Switch

Setting

 

Speaker output terminals

BRIDGE 1

ON

 

-

+ BRIDGE 1

 

BRIDGE 2

OFF

 

8

Ω

CH 1 mode

OFF

 

 

 

 

 

 

 

4

– 8 Ω

 

 

 

4

– 8 Ω

9

[1 input - 3 outputs (1)]

CH1

Switch

Setting

CH1

BRIDGE 1

OFF

 

CH2

BRIDGE 2

ON

 

CH 1 mode

ON

CH3

 

 

CH4

 

 

[1 input - 3 outputs (2)]

CH1

Switch

Setting

CH1

BRIDGE 1

ON

 

CH2

BRIDGE 2

OFF

 

CH 1 mode

ON

CH3

 

 

CH4

 

 

7.1.2. When using the DA-500FH

[4 inputs - 4 outputs] (factory-preset)

CH1

Switch

Setting

CH1

CH 1 mode

OFF

 

CH2

CH2

CH3

CH3

CH4

CH4

[1 input - 4 outputs]

CH1

Switch

Setting

CH1

CH 1 mode

ON

 

CH2

 

 

CH3

CH4

CH2 CH1

-+ - +

Speaker output terminals

BRIDGE 2 - +

 

 

 

 

 

 

 

 

 

 

4

– 8 Ω

 

 

 

 

 

 

 

– 8 Ω

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ω

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CH4 CH3

-+ - +

Speaker output terminals

-+ BRIDGE 1

8 Ω

4 – 8 Ω

4 – 8 Ω

CH4 CH3 CH2 CH1

-+ - + - + - +

Speaker output terminals

20 Ω

20 Ω

20 Ω

20 Ω

CH4 CH3 CH2 CH1

-+ - + - + - +

Speaker output terminals

20 Ω

20 Ω

20 Ω

20 Ω

10

8. REMOVABLE TERMINAL PLUG CONNECTION

Cautions

Be sure to use shielded cables for audio signal lines.

Avoid soldering cable conductor, as contact resistance may increase when the cable is tightened and the solder is crushed, possibly resulting in an excessive rise in joint temperatures.

Use cables of AWG 12 – 24.

Cable end treatment

Shielded cable

7 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20 mm

Connector connections

Step 1. Loosen the terminal screw, then insert the cable.

Step 2. Retighten the terminal screw. (Pull on the cable to ensure it is securely connected.)

Slotted screwdriver

2 Tightens Loosens 1

Terminal screw

Hot 1

Earth

Removable terminal plug

Cold

 

Shielded cable

 

Tip

Recommended slotted screwdriver type: Screwdriver with blade that is 3 mm in width

Bit shape 3 mm

11

9. INPUT SENSITIVITY SETTING

The input sensitivity for each channel can be set to either +4 dB (factory preset) or –10 dB.

CAUTION

These servicing instructions are for use by qualified personnel only. To avoid electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so. Refer all servicing to qualified service personnel.

Step 1. Unscrew 9 screws securing the top cover of the unit, then detach it.

Step 2. Insert the jumper socket into either "+4 dB" or "–10 dB" position as shown at right.

When a bridge connection is made (DA-550F only);

Set the input sensitivity with the CH1 jumper socket when Channels 1 and 2 are bridge-connected. Similarly, set the input sensitivity with the CH3 jumper socket when Channels 3 and 4 are bridgeconnected. (Input sensitivity settings for the CH2 and CH4 are disabled.)

[When set to +4 dB]

[When set to –10 dB]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input Sensitivity

 

 

 

 

Input Sensitivity

 

 

 

10–dB/+4dB

 

 

10–dB/+4dB

 

Jumper

 

 

 

 

 

 

 

 

 

Jumper

 

 

 

 

socket

 

 

 

 

 

 

 

 

 

socket

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Factory-preset)

 

 

 

 

 

 

Step 3. Replace the detached top cover.

CH 1

CH 2

CH 3

CH 4

Front panel

 

 

 

 

 

 

 

 

Viewed from top with the top cover detached.

10. PROTECTION OPERATION LIST

Failure

Protection

Operation Indicator

Remedy

Recovery

 

 

 

 

 

Overcurrent due

Current limiter activated

Peak indicator lights.

Remove overload.

Connecting a correct load

to overload

when impedance drops

 

 

automatically restores

 

below the specified

 

 

normal operation.

 

value.

 

 

 

 

 

 

 

 

Short circuit

Current limiter activated.

Protection indicator

Check speakers and

Turn off the power switch.

 

Load is disconnected.

lights.

lines for short circuit.

Correct the load, then

 

 

 

 

switch on the power.

 

 

 

 

 

Temperature rise

Load disconnected.

Protection indicator

Check the unit for

Operation automatically

at power amp.

 

lights.

correct ventilation and

returns to normal when

heat sink

 

 

overload.

the temperature decreases.

(over 100°C)

 

 

 

 

 

 

 

 

 

Temperature rise

Built-in amplifier unit

Four indicators of

 

 

at power supply

that caused the failure

the corresponding

 

 

heat sink

halted.

channel extinguish.

 

 

(over 80°C)

 

 

 

 

 

 

 

 

 

Abnormal DC

Load disconnected.

Protection indicator

Contact the TOA dealer where the unit was

voltage output

 

lights.

purchased.

 

 

 

 

 

 

12

11. TAMPER-PROOF CAP ATTACHMENT

To protect the input level control from accidental operation, it is recommended to replace the control knob with the supplied tamper-proof cap as illustrated.

Input level control

Tamper-proof cap (accessory)

12. CLEANING THE FILTER

Step 1. Switch off the unit's power.

Step 2. Remove the ventilation panel as shown in the figure.

Step 3. Detach the filter inside the ventilation panel.

Step 4. Clear the filter of dust.

Step 5. Replace the filter and ventilation panel.

Ventilation Panel

Ventilation Panel

3

Filter

13. DIMENSIONAL DIAGRAM

2

Detach the panel by pressing on the right side.

442

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

22.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

371

404.2

76.2

88.4

 

 

Unit: mm

465

482

13

14. BLOCK DIAGRAMS

14.1. DA-550F

CH 1 INPUT

H

C

E

CH 1 input level control

CH 2 INPUT

H

C

E

CH 2 input level control

CH 3 INPUT

H

C

E

CH 3 input level control

CH 4 INPUT

H

C

E

CH 1 TO ALL

switch CH 4 input level control

 

 

 

CH 1

 

 

 

OUTPUT

 

 

 

OUTPUT 1

 

 

 

relay

 

 

 

+

 

 

 

-

 

 

Current Limiter

 

+4 dB

 

Short Detector

 

-10 dB

 

Protection Circuit

BRIDGE 1

 

 

 

 

 

CH 1 sensitivity

 

 

OUTPUT

selection jumper

ON

 

OUTPUT 2

(+4 dB/-10 dB)

 

relay

 

 

 

+

 

 

 

-

 

OFF

Current Limiter

CH 2

 

 

 

BRIDGE 1

Short Detector

+4 dB

OUTPUT

ON/OFF switch

 

 

 

Protection Circuit

 

-10 dB

 

CH 3

 

 

 

 

 

CH 2 sensitivity

 

 

OUTPUT

selection jumper

 

 

OUTPUT 3

(+4 dB/-10 dB)

 

 

relay

 

 

 

+

 

 

 

-

 

 

Current Limiter

 

+4 dB

 

Short Detector

 

-10 dB

 

Protection Circuit

BRIDGE 2

CH 3 sensitivity

 

 

OUTPUT

 

 

OUTPUT 4

selection jumper

ON

 

(+4 dB/-10 dB)

 

relay

 

 

 

+

 

 

 

-

 

OFF

Current Limiter

CH 4

 

 

 

BRIDGE 2

Short Detector

+4 dB

OUTPUT

ON/OFF switch

 

 

 

Protection Circuit

 

-10 dB

 

 

 

 

 

CH 4 sensitivity selection jumper (+4 dB/-10 dB)

14.2. DA-500FH

CH 1 INPUT

H

C

E

CH 1 input level control

CH 2 INPUT

H

C

E

CH 2 input level control

CH 3 INPUT

H

C

E

CH 3 input level control

CH 4 INPUT

H

C

E

CH 1 TO ALL

switch CH 4 input level control

 

OUTPUT 1

 

relay

 

Current Limiter

+4 dB

Short Detector

-10 dB

Protection Circuit

 

CH 1 sensitivity

 

selection jumper

OUTPUT 2

(+4 dB/-10 dB)

relay

 

 

Current Limiter

+4 dB

Short Detector

-10 dB

Protection Circuit

CH 2 sensitivity

 

selection jumper

OUTPUT 3

(+4 dB/-10 dB)

relay

 

Current Limiter

+4 dB

Short Detector

-10 dB

Protection Circuit

CH 3 sensitivity

 

selection jumper

OUTPUT 4

(+4 dB/-10 dB)

relay

 

 

Current Limiter

+4 dB

Short Detector

-10 dB

Protection Circuit

CH 4 sensitivity

 

selection jumper

 

(+4 dB/-10 dB)

 

+

CH 1

-

OUTPUT

+ CH 2

- OUTPUT

+ CH 3

- OUTPUT

+

CH 4

-

OUTPUT

14

15. HOW TO USE THE CONTROL/MONITOR TERMINALS

The Control/Monitor terminals on the rear panel permit power ON/OFF control of the individual channels and monitoring for the power ON/OFF status and protection status on each channel, and fan operation status. Prepare the control panel and status monitor display panel separately referring to the descriptions below.

Notes

All terminals are electrically isolated from the unit body with the photocouplers.

A shielded wire of the connection cable is grounded to the unit chassis.

15.1. Control Terminal (Input)

While the unit's power switch is turned ON, each individual channel's power can be turned ON and OFF from the distant location using this terminal. The power indicator extinguishes only when the all channels' powers are turned off, but otherwise remains lit.

Using the power supply, which you need to prepare separately, perform the control by applying DC voltage to the control terminal.

This terminal is a photocoupler input, and requires max. 8 mA per control. Note the power capacity of the power supply.

Control voltages are as follows.

Control voltage (Vin)

Power ON/OFF status on each channel

Terminal pin No.

 

 

 

 

Pin 1 or 4

 

 

 

 

 

 

 

 

0

– 3 V DC

ON

 

 

 

 

 

Vin

External DC power

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Max. 14 V DC)

9

– 14 V DC

OFF

Pin 7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When controlling the control terminal with a power supply of 14 V DC or more, connect the specified resistance referring to the table below.

Note: The use of the resistance other than those specified may cause unit failure.

Control voltage (Vin)

R1 resistance value (rated power)

Terminal pin No.

R1

 

14 V to under 20 V DC

1 kΩ (0.1 W or more)

Pin 1 or 4

 

 

 

 

 

 

External DC power

20 V to under 30 V DC

3.3 kΩ (0.25 W or more)

 

 

 

 

 

Vin

Pin 7

 

 

 

 

(Max. 50 V DC)

 

 

 

 

 

 

 

 

 

 

 

30 V to under 50 V DC

5.6 kΩ (0.5 W or more)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15.2. Monitor Terminal (Output)

Indicators on the externally-connected device (status monitor display panel) or relays can be turned on and off in response to the power ON/OFF status, protection status, and fan operation status from the distant location using this terminal.

This monitor terminal is a photocoupler open-collector output terminal. Note that it is rated at withstand voltages of 30 V DC and control current of 12 mA or less when ON.

At the time of circuit design, consider the control current assuming that 1 V appears at the monitor terminal when ON.

[Example of a circuit]

When an LED is used

Control current: 12 mA or less

Terminal pin No.

Pin 2, 3, 5, 6, or 8

Pin 7

 

 

When a relay is used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

External DC power

 

Control current:

 

 

 

 

 

 

 

 

 

External DC power

 

 

 

 

 

 

 

(Max. 30 V DC)

 

12 mA or less

 

 

 

 

 

 

 

 

 

(Max. 30 V DC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Terminal pin No.

 

 

 

 

 

 

 

Pin 2, 3, 5, 6, or 8

 

 

 

 

 

 

 

 

Pin 7

 

 

 

 

 

 

Note

Be sure to connect a diode across the relay in the direction as shown above when connecting to the external relay.

15

15.3. About Pin 7 of the Control/Monitor Terminals

A ground common to all the control and monitor terminals is assigned to Pin 7.

Both Pins 7 of the Control/Monitor terminal for CH1 and CH2, and that for CH 3 and CH4 are internally connected to each other.

Pins 7 are isolated from the unit body.

15.4. Terminal Pin Arrangement

Terminal

Pin No.

Pin name

 

 

Unit operation status

 

 

 

 

 

 

HI-LEVEL

LO-LEVEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CH1, 2

1

CH1 power ON/OFF control (input)

CH1 power OFF

CH1 power ON

 

 

2

CH1 protection status (output)

CH1 normal

CH1 protection activated (irregular)

 

 

3

CH1 power ON/OFF status (output)

CH1 power OFF

CH1 power ON

 

 

 

 

 

 

 

 

4

CH2 power ON/OFF control (input)

CH2 power OFF

CH2 power ON

 

 

5

CH2 protection status (output)

CH2 normal

CH2 protection activated (irregular)

 

 

 

 

 

 

 

 

6

CH2 power ON/OFF status (output)

CH2 power OFF

CH2 power ON

 

 

7

GND (input/output)

 

 

 

 

8

Fan operation status (output)

Fan stop (irregular)

Normal

 

CH3, 4

1

CH3 power ON/OFF control (input)

CH3 power OFF

CH3 power ON

 

 

2

CH3 protection status (output)

CH3 normal

CH3 protection activated (irregular)

 

 

3

CH3 power ON/OFF status (output)

CH3 power OFF

CH3 power ON

 

 

 

 

 

 

 

 

4

CH4 power ON/OFF control (input)

CH4 power OFF

CH4 power ON

 

 

5

CH4 protection status (output)

CH4 normal

CH4 protection activated (irregular)

 

 

 

 

 

 

 

 

6

CH4 power ON/OFF status (output)

CH4 power OFF

CH4 power ON

 

 

7

GND (input/output)

 

 

 

 

8

Fan operation status (output)

Fan stop (irregular)

Normal

 

 

 

 

 

 

 

• About operation and terminal status

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HI-LEVEL

 

LO-LEVEL

 

 

 

 

 

 

 

 

 

 

 

Control terminal (input)

 

9 – 14 V DC

 

0 – 3 V DC

 

 

 

 

 

 

 

 

 

 

 

Monitor terminal (output)

 

OFF

 

ON

 

 

 

 

 

 

 

 

 

 

• The same information is output from both Pins 8 (fan status output) of the CH1 and CH2 terminal, and the CH3 and CH4 terminal.

• Lighting status of the protection indicator on the front panel matches operation of protection status provided at the monitor terminal.

Protection indicator (front panel)

Light off

Light on

 

 

 

Protection status (output)

OFF

ON

 

 

 

15.5. Connection Cable and Maximum Cable Length

For the connection cable, use a Shielded Category 5 twisted pair cable for LAN (CAT5-STP). The maximum cable length is 600 m.

16

15.6. RJ45 Connector's Pin Arrangement and Cable Color Codes

To Control/Monitor terminal

RJ45 pin No.

1

2

3

4

5

6

7

8

Shield

Shielded Category 5 twisted pair cable for LAN (CAT5-STP)

RJ45 pin No.

Cable color

Cable color

(for T568B)

(for T568A)

 

 

 

 

1

Orange/white

Green/white

 

 

 

2

Orange

Green

3

Green/white

Orange/white

 

 

 

4

Blue

Blue

5

Blue/white

Blue/white

6

Green

Orange

7

Brown/white

Brown/white

8

Brown

Brown

 

 

 

Shield

 

 

 

17

16. SPECIFICATIONS

16.1. DA-550F CE

Power Source

220 – 240 V AC, 50/60 Hz

 

 

 

Amplification system

Digital class D

 

 

 

Power Consumption

480 W (based on EN standards), 2750 W (rated output 4 Ω x 4),

 

1550 W (rated output 8 Ω x 4)

 

 

Input

4 circuits, +4 dB* (1.23 V, input level control in maximum position),

 

10 kΩ, electronically-balanced, removable terminal block (3 pins),

 

XLR-3-31 type connector

 

CH 1 mode ON/OFF switch (ON: CH 1 to All ch, OFF: Each ch)

 

 

Rated Output

4 channels: 550 W x 4 (4 Ω), 350 W x 4 (8 Ω)

 

2 channels (BRIDGE): 1,100 W x 2 (8 Ω)

 

M4 screw terminal, distance between barriers: 8.8 mm

 

 

Frequency Response

20 – 20,000 Hz (–2 dB, +1 dB)

 

 

Total Harmonic Distortion

0.1% (1 kHz), 0.15% (20 – 20,000 Hz)

 

 

Protection circuit

Protection against excessive current flow due to overload, short circuit,

 

unusual DC voltage output, and heat sink temperature rise (over 100°C)

 

 

S/N Ratio

100 dB (A-weighted)

 

 

Crosstalk

70 dB (A-weighted)

 

 

 

Control/Monitor

Control input:

Power ON/OFF status of the individual channels

 

 

Photocoupler input

 

 

drive voltage: 9 V DC (Min) – 14 V (Max), 12 V (Typ)

 

Monitor output:

Power ON/OFF status of the individual channels, Protection

 

 

status of the individual channels, Fan operation status

 

 

Photocoupler open collector output

 

 

withstand voltage: 30 V DC

 

 

control current: under 12 mA

 

Connector:

RJ45 connector x 2

 

Connection cable: Shielded Category 5 twisted pair cable for LAN (CAT5-STP)

 

Maximum cable distance: 600 m

 

 

LED Indicator

Power (blue) x 1, Input (green) x 4, Output (yellow) x 4, Peak (red) x 4,

 

Protect (red) x 4

 

 

 

 

Cooling

Forced air cooling

 

Operating Temperature

–10°C to +40°C

 

 

 

Operating Humidity

Under 90% RH (no condensation)

 

 

Finish

Panel: Aluminum, black, alumite

 

Case: Plated steel sheet

Dimensions

482. (w) x 88.4 (h) x 404.2 (d) mm

 

 

 

Weight

9 kg

 

* 0 dB = 0.775 V

 

 

Note: The design and specifications are subject to change without notice for improvement.

• Accessories

 

 

Power cord (2 m) .................................................................

 

1

Removable terminal plug (3 pins) ........................................

4

Rack mounting screw (with plain washer) 5 x 12

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

Tamper-proof cap ................................................................

 

4

18

16.2. DA-500FH CE

Power Source

220 – 240 V AC, 50/60 Hz

 

 

 

Amplification system

Digital class D

 

 

 

Power Consumption

460 W (based on EN standards), 2350 W (rated output 20 Ω x 4)

 

 

Input

4 circuits, +4 dB* (1.23 V, input level control in maximum position),

 

10 kΩ, electronically-balanced, Removable terminal block (3 pins),

 

XLR-3-31 type connector

 

CH 1 mode ON/OFF switch (ON: CH 1 to All ch, OFF: Each ch)

 

 

Rated Output

4 channels: 500 W x 4 (20 Ω)

 

M4 screw terminal, distance between barriers: 8.8 mm

 

 

Frequency Response

50 – 20,000 Hz (–3 dB, +1 dB)

 

 

Total Harmonic Distortion

0.1% (1 kHz), 0.3% (100 – 20,000 Hz)

 

 

Protection circuit

Protection against excessive current flow due to overload, short circuit,

 

unusual DC voltage output, and heat sink temperature rise (over 100°C)

 

 

S/N Ratio

100 dB (A-weighted)

 

 

Crosstalk

70 dB (A-weighted)

 

 

 

Control/Monitor

Control input:

Power ON/OFF status of the individual channels

 

 

Photocoupler input

 

 

drive voltage: 9 V DC (Min) – 14 V (Max), 12 V (Typ)

 

Monitor output:

Power ON/OFF status of the individual channels, Protection

 

 

status of the individual channels, Fan operation status

 

 

Photocoupler open collector output

 

 

withstand voltage: 30 V DC

 

 

control current: under 12 mA

 

Connector:

RJ45 connector x 2

 

Connection cable: Shielded Category 5 twisted pair cable for LAN (CAT5-STP)

 

Maximum cable distance: 600 m

 

 

LED Indicator

Power (blue) x 1, Input (green) x 4, Output (yellow) x 4, Peak (red) x 4,

 

Protect (red) x 4

 

 

 

 

Cooling

Forced air cooling

 

Operating Temperature

–10°C to +40°C

 

 

 

Operating Humidity

Under 90% RH (no condensation)

 

 

Finish

Panel: Aluminum, black, alumite

 

Case: Plated steel sheet

Dimensions

482. (w) x 88.4 (h) x 404.2 (d) mm

 

 

 

Weight

9 kg

 

 

 

 

* 0 dB = 0.775 V

 

 

Note: The design and specifications are subject to change without notice for improvement.

• Accessories

 

 

Power cord (2 m) .................................................................

 

1

Removable terminal plug (3 pins) ........................................

4

Rack mounting screw (with plain washer) 5 x 12

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

Tamper-proof cap ................................................................

 

4

19

Traceability Information for Europe (EMC directive 2004/108/EC)

Manufacturer:

Authorized representative:

TOA Corporation

TOA Electronics Europe GmbH

7-2-1, Minatojima Nakamachi, Chuo-ku, Kobe, Hyogo,

Suederstrasse 282, 20537 Hamburg,

Japan

Germany

 

 

 

 

 

 

 

 

 

 

 

 

 

 

URL: http://www.toa.jp/

 

 

 

 

 

 

 

 

133-22-103-10