Inter-m S3000 Manual de usuario

PROFESSIONAL POWER

AMPLIFIER

S3000/4000

OPERATING MANUAL

UNPACKING AND INSTALLATION

Although it is neither complicated to install nor difficult to operate your Power Amplifier, a few minutes of your

time is required to read this manual for a properly wired installation and becoming familiar with its many

features and how to use them. Please take a great care in unpacking your set and do not discard the carton

and other packing materials. They may be needed when moving your set and are required if it ever becomes

necessary to return your set for service. Never place the unit near radiators, in front of heating vents, to direct

sun light, in excessive humid or dusty location to avoid early damage and for your years of quality use.

Connect your complementary components as illustrated in the following page.

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION

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.

WARNING

To prevent fire or shock hazard, do not

expose the unit to rain or moisture.

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.

FEATURES

HIGH PERFORMANCE POWER AMPLIFIER WITH SMPS SYSTEM

Adopting high efficient switching mode power supply, the amplifier is possessed of high power performance

with reliability, and its weight is light.

DUAL MONORAL POWER SUPPLY

The amplifier is operated by independently power supply for each channel. If one channel is break down,

another channel can be perform well.

REMOTE POWER ON/OFF CONTROL (STAND-BY)

HIGH EFFICIENCY CIRCUIT TYPE

High efficient 3-step(S4000) output circuit for lower AC current consumption and advanced thermal

performance. (S3000:2-step output circuit)

VARIOUS LED INDICATORS

To confirm the operating status, LED display of Power, Stand-By, Signal, Level, Clip and Protection on front

panel.

VARIOUS PROTECTION CIRCUITS

To insure stability against over current, over heating, output short, turn on/off delay, RF protection, clip-

limiter, DC fault detection power supply shutdown circuitry is provided.

MODE SELECTOR SWITCH

Operating Modes are PARALLEL, STEREO and BRIDGED-MONO.

VARIABLE FAN COOLING METHOD

Continuously variable speed fan for silent operation (Air flow: from rear to front).

FRONT PANEL CONTROLS

1. POWER SWITCH

Use this to power the amplifier on or off.

2. POWER INDICATOR

Power indicator is driven by power switch, and the LED turns on when the amplifier is powered ON.

3. LEVEL CONTROLS

Separate level controls allow you to adjust the input level of the arriving at the rear panel input connectors.

At the fully counterclockwise position, the signal is infinitely attenuated. At the fully clockwise position, and

signal is at unity gain. When 1Vrms of signal arrives at the input connectors and the channel input controls

are set to their MAX” position, the amplifier delivers full power output.

4. SIGNAL INDICATORS

The signal indicators turn on brightly when 1 watt signal level is present in the output.

5. OUTPUT LEVEL INDICATORS

The output level indicators turn on when amplifier has been turned on and has power. These LEDs turn on

when -20dB and -10dB signal level below rated output power is present in the output.

4000

PROFESSIONAL POWER AMPLIFIER

CLIP

-10dB

-20dB

SIGNAL

CLIP LIMITER

CHANNEL 2

CHANNEL 1

PROTECT

STANDBY

POWER

6. CLIP-LIMITER INDICATORS

The clip-limiter indicators turn on when a distortion level above 1% THD is present in the output.

7. CLIP-LIMITER SWITCHES

Use this to prevent the amplifier from continuous clipping in each channel output.

8. STAND-BY INDICATOR

The stand-by indicator turns on when the stand-by switch (2p screw terminal) on rear panel turned on.

9 PROTECTION INDICATOR

The protection indicator turns on when a protection circuit in the amplifier is operating by an abnormal

condition as follows.

* Thermal protection....................When the heatsink and main switching power transformer

temperature should climb above 100 , protection circuit is operated.

* Full short protection ........................The output circuit protects the output devices from short circuits and

stressful loads.

* DC fault protection..........................The outputs will mute if DC or excessive subsonic energy appears at

them.

* RF protection...............................The input circuits are isolated by 10KΩresistors. An supersonic

network decouples RF from the outputs and helps keep the amplifier

stable with reactive loads.

* Turn on/off muting...........................Turn on/off muting blocks transients from the amplifier or preceding

devices from reaching the speakers. The turn on delay has been

extended somewhat, and turn off muting.

* Clip limiting ...................................During normal operation, the clip limiter does not affect the audio

signal and is, in fact, inaudible. It will allow brief clipping of peaks,

activating only when continuous, hard limiting occurs. The clip limiter

will then gradually reduce the audio signal (up to 10dB) to minimize

clipping. When clipping ends, the clip limiter will deactivate and cease

its gain reduction.

* Inrush current protection.................ln rush current is limited by an NTC resistor (Negative Temperature

Coefficient) which starts at a high resistance and then diminishes

after turn on to avoid loss of power.

10. HANDLES

You can handle the amplifier easily by using these handles.

REAR PANEL CONTROLS

1. AC INPUT

Plug this AC input cord into AC outlet.

2. INPUT TERMINALS (CHANNEL 1, 2)

Input connectors are provided both balanced combination jacks.

Channel 1 input terminal is used in Bridge mode and parallel mode.

S/N

PROFESSIONALPOWERAMPLIFIER

MODEL NO : S-4000

MADE IN KOREA

~AC INPUT

230V 50Hz

4100W

BRIDGE

PARALLEL

STEREO

CH2

CH1

(+)

(-)

OUTPUT

(-)

(+)

(-)

STANDYBY

ENABLE

POWERSUPPLY

CONTROL

PUSH

INPUT

CH2

CH1

CH2

SPEAKON CON.

(STEREO)

1+:POSITIVE

1-:GND

2+,2-:NOT CONNECT

SPEAKON CON.

(BRIDGEDMONO)

1+:(CH 1)

1+:(CH 2)

CAUTION;

TO REDUCE THE RISK OF ELECTRIC SHOCK,

DONOTREMOVECOVER.NOUSERSERVICEABLEPARTSINSIDE.

REFERSERVICINGTOQUALIFIEDSERVICEPERSONNEL.

AVIS;

RISQUE DE CHOC ELECTRIOUE NE PAS OUVRIR.

20KBALANCED

10KUNBALANCED

INPUT SENSITIVITY : 0dBV

INPUTIMPEDANCE

PUSH

HOT GROUND

COLD

PUSH

HOTGROUND

COLD

GROUND HOT

XLR-TYPE CONNECTION

They are wired pin 1-ground, pin 2-hot(+), and pin 3 cold(-)

PHONE JACK

They are wired tip-hot(+), ring-cold(-), and sleeve-ground.

FOR LINK

XLR-MAIL

GROUND GROUND

HOT HOTCOMBINATION

FOR INPUT

GROUND

COLD

HOT

3. MODE SELECTOR

By the mode select switch, these amplifier can be used for stereo, input parallel and bridged mono

function.

4. OUTPUT TERMINALS

Output terminals are dual five-way binding posts and speaker connectors. Do not parallel the two outputs

of each channel by connecting them (together, or parallel them) with any other amplifier output.

*When speakers are connected through speaker, please make sure correct connection of each pin, and

refer speaker pin number.

*OUTPUT CONNECTORS(BINDING POST)

Use these to connect the amplifier to loudspeakers, wiring method is as fallows.

1)Stereo mode: RED (CH1&2) : HOT

BLACK (CH1&2) : COLD

2)Bridged mono mode: RED (CH1) : HOT

BLACK (CH2) : COLD

BLACK (CH1&2) : USELESS TERMINAL

The minimum impedance for the connected speaker system is specified in “Speaker Impedance” on page8.

CH 1

CH 2

CH 1

CH 2

CH 1

CH 2

(+) (-)

(-)

(+)

(+) (-)

CH 2

CH 1

OUTPUT

1- 1+

2+ 2-

AMP OUTPUT CH 1, CH 2

NOT CONNECTED

1- 1+

2+ 2-

MONO(BTL)

CH 1 OR CH 2

NOT CONNECTED

(+) (-)

(-)

(+)

(+) (-)

CH 2

CH 1

OUTPUT

1) PARALLEL MODE 3) BRIDGED MONO MODE

STEREO MODE BRIDGED MODE

5. STAND-BY SWITCH

Use this to stand-by the amplifier for power supply control.

6. FAN

Continuously variable speed fan is operated by the thermal sensors on the main heatsink or the switching

power transformer.

STANDYBY

ENABLE

POWER SUPPLY

CONTROL

STANDYBY

ENABLE

POWER SUPPLY

CONTROL

STANDYBY

ENABLE

POWER SUPPLY

CONTROL

1) ONE AMPLIFIER

External Switch

2) MULTIPLE AMPLIFIER

STEREO MODE AND BRIDGED MONO MODE

STEREO MODE

In this mode, channels 1 and 2 operate independently (typical stereo amplifier). Channel 1 input signal

feeds channel 1 power amp, and channel 2 input signal feeds channel 2 power amp. In this mode, the

minimum speaker impedance per channel is 4Ω.

BRIDGED MONO MODE

In this mode, channels 1 and 2 are bridged together and work as one mono amplifier. In this mode, the

minimum speaker impedance is 8Ω.

SPEAKER IMPEDANCE AND CONNECTION

The series amplifier has three operating modes: Stereo, Bridged and Parallel and allows you to connect

multiple speaker systems in parallel. Therefore, the minimum speaker impedance various depending on the

combination of these speakers. Be sure that the speaker impedance falls below the specified impedance.

The figures below show the examples of connection is Stereo mode and Bridged mode, and speaker systems

connected in parallel in Stereo mode, and the respective minimum impedance.

(+)

(-)

OUTPUT

(-)

(+)

(-)

CH2

CH1

CH2

SPEAKON CON.

(STEREO)

1+:POSITIVE

1-:GND

2+,2-:NOT CONNECT

SPEAKON CON.

(BRIDGEDMONO)

1+:(CH 1)

1+:(CH 2)

(4Ωmin)

(8Ωmin)

BRIDGE

PARALLEL

STEREO

(+)

(-)

OUTPUT

(-)

(+)

(-)

CH2

CH1

CH2

SPEAKON CON.

(STEREO)

1+:POSITIVE

1-:GND

2+,2-:NOT CONNECT

SPEAKON CON.

(BRIDGEDMONO)

1+:(CH 1)

1+:(CH 2)

(4Ωmin)

BRIDGE

PARALLEL

STEREO

(+)

(-)

OUTPUT

(-)

(+)

(-)

CH2

CH1

CH2

SPEAKON CON.

(STEREO)

1+:POSITIVE

1-:GND

2+,2-:NOT CONNECT

SPEAKON CON.

(BRIDGEDMONO)

1+:(CH 1)

1+:(CH 2)

BRIDGE

PARALLEL

STEREO

(+)

(-)

OUTPUT

(-)

(+)

(-)

CH2

CH1

CH2

SPEAKON CON.

(STEREO)

1+:POSITIVE

1-:GND

2+,2-:NOT CONNECT

SPEAKON CON.

(BRIDGEDMONO)

1+:(CH 1)

1+:(CH 2)

BRIDGE

PARALLEL

STEREO

(+)

(-)

OUTPUT

(-)

(+)

(-)

CH2

CH1

CH2

SPEAKON CON.

(STEREO)

1+:POSITIVE

1-:GND

2+,2-:NOT CONNECT

SPEAKON CON.

(BRIDGEDMONO)

1+:(CH 1)

1+:(CH 2)

(8Ωmin)

BRIDGE

PARALLEL

STEREO

(8Ωmin)

(+)

(-)

OUTPUT

(-)

(+)

(-)

CH2

CH1

CH2

SPEAKON CON.

(STEREO)

1+:POSITIVE

1-:GND

2+,2-:NOT CONNECT

SPEAKON CON.

(BRIDGEDMONO)

1+:(CH 1)

1+:(CH 2)

(8Ωmin)

BRIDGE

PARALLEL

STEREO

STEREO MODE CONNECTIONS BRIDGED MODE CONNECTIONS

CAUTION FOR SPEAKER CONNECTION AND INSTALLATION

1. Turn off the POWER switch.

2. After removing approx. 10mm of insulation from the ends of the speaker cables, pass the bartends of the

speaker wires through the holes in the corresponding speaker terminals and tighten the terminals to

securely clamp the wires.

Refer to page 6 for speaker polarity.

At the time make sure that the bare ends of the speaker cables do not extend from the terminals in such a

way that they touch the chassis.

3. SPEAKER CABLE

If you use a long speaker cable, use as thick a cable as possible to prevent deterioration of the damping

factor or power loss inside the cable. Even the thickest cable can be used for the speaker terminal of this

unit.

4. The amplifier are capable of hazardous output voltage. To avoid electrical shock when using the Binding

Posts for speaker connections, do not touch exposed speaker wiring while the amplifier is operating.

5. To avoid damage to the amplifier mounting ears and/or rack rails, the amplifier must be supported at all

four corners when used in portable racks.

6. AIR FLOW

The amplifier intakes cool air through the rear panel and exhausts warm air out the front panel. When

mounting amplifiers in a portable rack, make sure the rear panel is completely open for ventilation.

7. To reduce temperature of amplifier in rack, use to blank panel between the two amplifier.

10mm

Wire should not

touch the chassis

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