Nilfisk MACRO 830, MACRO 1400, MACRO 2400 User Manual

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MACRO

User's Manual

PROFESSIONAL HIGH

830/1400/2400

POWER STEREO AMPLIFIER

LTO

www.altoproaudio.com

Version 1.0 April 2002

English

SAFETY RELATED SYMBOLS

CAUTION

RISK OFELECTRIC SHOCK

DO NOTOPEN

This symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosure-voltage that may be sufficient to constitute a risk of shock.

This symbol ,wherever it appears ,alerts you to important operating and maintenance instructions in the accompanying literature . Read the manual .

Protective grounding terminal .

Alternating current /voltage .

Hazardous live terminal .

ON: Denotes the apparatus turns on .

OFF: Denotes the apparatus turns off ,because of

using the single pole switch ,be sure to unplug the AC power to prevent any electric shock before you proceed your service .

WARNING: Describes precautions that should be observed to prevent the danger of injury or death to the user .

CAUTION: Describes precautions that should be observed to prevent danger of the apparatus .

WARNING

Power Supply

Ensure the source voltage matches the voltage of

the power supply before turning ON the apparatus. Unplug this apparatus during lightning storms or when unused for long periods of time .

External Connection

The external wiring connected to the output hazardous live terminals requires installation by an instructed person, or the use of ready-made leads or cords.

Do not Remove any Cover

There are maybe some areas with high voltages

inside , to reduce the risk of electric shock, do not

remove any cover if the power supply is connected.

The cover should be removed by the qualified personnel

only.

No user serviceable parts inside.

Fuse

To prevent a fire, make sure to use fuses with specified

standard (current, voltage, type). Do not use a different

fuse or short circuit the fuse holder.

Before replacing the fuse, turn OFF the andapparatus

disconnected the power source.

Protective Grounding

Make sure to connect the protective grounding to prevent

any electric shock before turning ON the apparatus.

Never cut off the internal or external protective grounding

wire or disconnect the wiring of protective grounding terminal.

Operating Conditions

This apparatus shall not be exposed to dripping or splashing and that no objects filled with liquids, such as vases, shall be placed on this apparatus. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. Do not use this apparatus near water. Install in accordance with the manufacturer's instructions. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Do not block any ventilation openings. No naked flame sources, such as lighted candles, should be placed on the apparatus.

IMPORTANT SAFETY INSTRUCTIONS

Read these instructions.

Follow all instructions. Keep these instructions. Heed all warnings. Only use attachments/accessories specified by the

manufacturer.

Power Cord and Plug

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. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles , and the point where they exit from the apparatus.

Cleaning

When the apparatus needs a cleaning, you can blow off dust from the apparatus with a blower or clean with rag etc. Don't use solvents such as benzol, alcohol, or other fluids with very strong volatility and flammability for cleaning the apparatus body. Clean only with dry cloth.

Servicing:

Refer all servicing to qualified personnel. 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 .

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.

Preface

Dear Customer,

Thanks for choosing LTO MACRO 830/1400/2400 Professional High Power Stereo Amplifier and thanks for

choosing one of the results of LTO AUDIO TEAM job and researches.

For our LTO AUDIO TEAM, music and sound are more than a job ...are first of all passion and let us say...our

obsession! We have been designing professional audio products for a long time in cooperation with some of the major brands

in the world in the audio field.

The line presents unparalleled analogue and digital products made by Musicians for Musicians in our R&DLTO Centers in Italy, Netherlands, United Kingdom and Taiwan. The core of our digital audio products is a sophisticated DSP (Digital Sound Processor) and a large range of state of the art algorithms which have been developed by our Software Team for the last 7 years. Because we are convinced you are the most important member of LTO AUDIO TEAM and the one confirming the quality of our job, we'd like to share with you our work and our dreams, paying attention to your suggestions and your comments. Following this idea we create our products and we will create the new ones! From our side, we guarantee you and we will guarantee you also in future the best quality, and the best fruits of our continuous researches and the

best prices.

Our LTO MACRO 830/1400/2400 Professional High Power Stereo Amplifier is the result of many hours of listening

and tests involving common people, area experts, musicians and technicians. The result of this effort is the sophisticated circuit design featuring high power and superb quality together with superior reliability and stability to provide the highest possible audio performance.

Nothing else to add, but that we would like to thank all the people that made the LTO MACRO 830/1400/2400 Professional High Power Stereo Amplifier a reality available to our customers, and thank our designers and all the LTO

staff, there to make possible the realization of products containing our idea of music and sound and there to support

you , our customers, in the best way, conscious that you are our best richness.

Thank you very much.

LTOAUDIOTEAM

TABLE OF CONTENTS

1. INTRODUCTION.............................................................................................................4

2. FEATURE LIST...............................................................................................................4

3. CONTROL ELEMENTS...................................................................................................4

3.1 The Front Panel

3.2 The Rear Panel

4. INSTALLATION & CONNECTION.....................................................................................6

4.1 Mains Connection

4.2 Rack Mounting

4.3 Audio Connection

a .Wiring Configuration

b .In Line Connection

5. OPERATION ..................................................................................................................7

5.1 Operate MACRO 830/1400/2400 in Stereo Mode

5.1 Operate MACRO 830/1400/2400 in Parallel (Mono) Mode

5.1 Operate MACRO 830/1400/2400 in Bridged Mode

6. CAUTION FOR APPLICATION

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

6.1 General Application Instruction

6.2 Caution for Speaker Connection

7. TECHNICAL SPECIFICATIONS

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

7.1 Specifications

7.2 Block Diagram

8. WARRANTY

.............................................................................................................................12

1. INTRODUCTION

Thank you very much for expressing your confidence in products by purchasing our MACRO 830/LTO 1400/2400 Professional Stereo Amplifier . With the MACRO 830/1400/2400 you have acquired an extremely musical and flexible High Power Amplifier which is based on many years of experience and findings in amplifier technology and is used through the world in the renowned studios.

The MACRO 830/1400/2400 is used for professional output of stage stereo at three levels of power, with excellent performance. Output power can be adjusted at the user's demand, and the sound quality and protecting circuit are both sophisticated.

The front panel presents you with 6 LEDS (Power LED, Protection LED, Clip & Signal LED for both channels) and 2 Level Controls (for both channels), you can operate this unit more precise and easier. The Output Connectors are Speak-on jacks, and the binding post terminals are used for better matching. Before connecting this unit into your sound system, please make sure it is powered down to prevent any electric shock.

2. FEATURE LIST :

Sophisticated protecting circuits protect the machine from improper tampering

Input matching allows collection with any preamplifier Excellent frequency echo and sound quality High fidelity and low noise

Balanced XLR and 1/4" TRS Input Connectors Output Connectors are speak-on jacks, and the binding post terminals are used for better matching Output power can be switched between stereo , parallel and bridged

High-speed and low noise fan for releasing heat. When the temperature rises, the fan automatically switches to high-speed, it re-back to normal speed at other times to reduce power consumption

Indicator for the output balance, as well as status indicators of SIG and CLIP. When there is any signal (>100mV), the SIG LED lights up. When there is overload, the CLIP LED lights up. If anything abnormal

happens to the circuits, the CLIP LED will be continuously on, with no action from the circuits. This helps the user to determine which status it is in.

White aluminum panels with acrylic presents an artistic and trendy look Solid and durable, can be mounted into a cabinet

Manufactured under ISO9001 certified management system

3. CONTROL ELEMENTS

3.1 The Front Panel:

MACRO2400

LTO

PROFESSIONAL HIGH POWER STEREO AMPLIFIER

PROT

OFF

POWER

1. MainsSwitch

This switch turns on and turns off the unit by controlling both phases.

2. Power LED

This Power LED lights up when the unit is powered up .

3. Clip LED

The Clip LEDs light up when distortion reaches or exceeds 0.5% approximately, which means the unit is

being driven by excessively high signal source ,and you'd better adjust the level control until these LEDs

re-eliminated .

Signal Indicator

These Signal Indicators light up when the output is more than 100Vm.

SIG

CLIP

CH-A CH-B

SIG

CLIP

4. Level controls for CHANNEL A, B

These level Controls are used to adjust the output signal level, you'd better adjust them properly to avoid any distortion .

5. Protection LED

This red LED indicator lights up when the thermal-protection system is working ,no signal is output during this protection period, and this means any overheating occurs inside the unit (the critical temperature is 80 ),

you must take actions to avoid this overheating ,e.g. :speed up the air circulation, decrease the signal level ... If the problem is corrected, the protection systems deactivate automatically ,this LED eliminates ,and normal amplifier operation is resumed .

3.2. The Rear Panel

BREAKER

WARNING

TOREDUCE THE RISKOF FIRE ORELECTRIC SHOCK, DONOT EXPOSETHIS APPARATUSTO RAINOR MOISTURE. SEEINSTRUCTION BEFORE USING!

MODEL

SERIAL

CH-B

CH-A

BRIDGED INPUT

LINE

BALANCED INPUT

LINE

(+)

()

OFF

LF 30HZ

FILTER

1.15V/20K

PARALLEL

(MONO)

OFF ON

CLIP LIMIT

INPUT

CONNECTION

(GND)

BRIDGED

STEREO

SRT

T(+)

R( )

S(GND)

BRIDGED

MONO

CHANNELA CHANNEL B

11 8910 13

6. Breaker

This breaker is used to protect the unit in replacement of fuse. Press it to reset .

7. AC Inlet

This connector is meant for the connection of the supplied main cord. Do not insert the power cord into this unit until voltage has been correctly set .Do not plug the power cord into the mains until the voltage has been correctly set .

8. Output Connectors

The Output Connectors include the Speak-on jacks and Binding post terminals, you can use the specific Output connectors according to the actual application circumstance.

Be careful to connect the Output Connectors so as not to occur any problem.

Caution :Turn off the unit before connecting the Output Connectors so as to avoid any electric shock!

9. Balanced Input Connectors

The Input Connectors include the balanced XLR servo connectors and 1/4"TRS phone jack .For the extension to another amplifier, connect these jacks to another amplifier input jacks.

10. Clip Limit Switch

While on, the clip limit function specific to this machine keeps fixed output when the output exceeds the Maximum of the machine to protect its circuits. While off, there is no such limit

11.Mode Selector

The MACRO 830/1400/2400 Professional Stereo Amplifier presents three operating modes:

- Stereo Mode

In this mode ,Channel A and Channel B operate independently (as a conventional stereo amplifier).

The Channel A input signal will be output from the Channel A output connectors, and the Channel B input signal will be output from the Channel B output connectors.

- Parallel Mono Mode

In this mode, the Channel A input signal will be output from the output connectors of both Channels ,detail wiring diagram you can refer to Chapter5.

- Bridged Mode

In this mode, the Channel A input signal will be output from the Bridge output connectors, detail wiring diagram you can refer to Chapter5.

12.LF 30Hz Filter

Some large subsonic frequencies are present in the input signal and these can damage the consequent

speaker systems by over loading or overheating . This LF30Hz Filter is used to prevent this happening ,and add an appropriate low-pass filter in the input circuit

13.Fan

This fan releases the heating from the unit by accelerating the air circulation (air flow from front to back),

and its speed is continuously variable.

4. INSTALLATION & CONNECTION :

4.1 Mains Connection

Do not insert the power cord into this unit until voltage has been correctly set. Do not plug the power cord

into the mains until the voltage has been correctly set.

Please ensure that the MACRO 830/1400/2400 Professional Stereo Amplifier is supplied with the correct

voltage before turning on this unit.

If you can't power up this unit while turning on the Mains Switch (1), please check the Breaker (6) on the rear panel first, maybe it is pressed to reset. Otherwise, contact the technician or qualified personnel for

any service.

Caution

manual unless you are qualified to do so.

Please turn off this unit before any installation and connection, esp .when you connect your unit into the

sound system. This is important to prevent damage to the unit itself as well as other consequent speaker system.

The mains connection of the MACRO 830/1400/2400 Professional Stereo Amplifier is made by using the enclosed power cord and a standard IEC receptacle, and it meets all of the international safety certification

requirements.

: To reduce the risk of electric shock, do not perform any servicing other than contained in this

4.2 Rack Mounting

The most secure mounting is on a universal rack shelf available from various rack manufactures or your music dealer. The MACRO 830/1400/2400 Professional Stereo Amplifier fits into one standard 19" rack unit of space.

Be sure that there is enough air space around the unit for sufficient ventilation. If heat release is inadequate,

this unit will retain heat inside, which may cause the protection, or even a fire.

4.3 Audio onnectionC

The presents with balanced XLR connectorsLTO and 1/4" TRS phone jack and it can be interfaced by several ways to support a variety of applications without any signal loss.

a. Wiring Configuration

Either the 1/4" TRS (Tip-Ring-Sleeve) phone jack or the XLR servo connector can be wired in balanced and unbalanced modes, which will be determined by the actual application status, Please wire your systems as

the following examples:

MACRO 830/1400/2400 Professional High Power Amplifier

For 1/4" TRS jack

Unbalanced Input

For XLR connector

XLR Unbalanced Input

1/4"TRS jack

Balanced Input

XLR Balanced Input

b. In Line Connection

For these applications, the provides XLR connectors

MACRO 830/1400/2400 Professional High Power Amplifier

And 1/4" TRS phone jack to easily interface with most professional audio devices. Follow the configuration Examples below for your particular connection.

Balanced

TIPRING SLEEVE

Unbalanced

TIPRING SLEEVE

TIPSLEEVE

TIPRING SLEEVE

TIPSLEEVE

TIPRING SLEEVE

SLEEVERING TIP

SLEEVETIP

SLEEVERING TIP

Ring

Sleeve

Ring

Sleeve

Ring

Sleeve

Ring

Sleeve

Ring

Sleeve

Tip

1 2 3

Tip

1 2 3

Tip

1 2 3

Tip Ring Sleeve

1 2 3

Centre

Screen

Tip

Sleeve

Tip Ring Sleeve

Centre Screen

Centre

Screen

1 2 3

5.OPERATION

The MACRO 830/1400/2400 Professional High Power Stereo Amplifier provides three operating modes with each unit: Stereo mode, Parallel (Mono) mode and Bridged mode, you can decide each specific operating mode according to your actual application circumstance.

Following examples will show you the typical connections, you can refer to install your MACRO 830/1400/2400 into a sound system:

5.1 Operate MACRO 830/1400/2400 in Stereo Mode

In this mode, Channel A and Channel B operate independently ( as a conventional stereo amplifier). The Channel A input signal will be output from the Channel A output connectors, and the Channel B input signal will be output from the Channel B output connectors.

Input wiring tips

BALANCED UNBALANCED

CHANNEL B

CHANNEL A

GND

INPUT

FROM

SOURCE

+ +

SHIELD SHIELD

CH-B

LINE

OFF

BALANCED INPUT

LINE

OFF ON

CH-A

BRIDGED INPUT

BRIDGED

STEREO

PARALLEL

(MONO)

NEWTIDE

2 1

(+)

()

LF30HZ FILTER

1.15V/20K

CLIP LIMIT

NEWTIDE

2 1

NEWTIDE

3 2 1

NEWTIDE

3 2 1

NEWTIDE

3 2 1

(GND)

PARALLEL

(MONO)

NEWTIDE

3 2 1

INPUT

CONNECTION

BRIDGED

STEREO

INPUT

SHIELD

FROM

SOURCE

SRT

T(+)

R( )

S(GND)

BRIDGED

MONO

CHANNELA CHANNELB

TOREDUCE THERISK OF FIRE

BREAKER

ORELECTRIC SHOCK,DO NOT EXPOSETHIS APPARATUSTO RAINOR MOISTURE. SEEINSTRUCTION BEFORE USING!

Channel B

WARNING

MODEL

SERIAL

Channel A

CHANNEL B

CHANNEL A

Input wiring tips

BALANCED UNBALANCED

(+)

LF30HZ

FILTER

1.15V/20K

CLIP LIMIT

NEWTIDE

2 1

NEWTIDE

3 2 1

NEWTIDE

3 2 1

NEWTIDE

3 2 1

(GND)

()

PARALLEL

(MONO)

NEWTIDE

2 1

INPUT

CONNECTION

BRIDGED

STEREO

SHIELD

SRT

T(+)

R( )

S(GND)

GND

INPUT

FROM

SOURCE

+ +

SHIELD SHIELD

CH-B

LINE

OFF

BALANCED INPUT

LINE

OFF ON

CH-A

BRIDGED INPUT

BRIDGED

STEREO

PARALLEL

(MONO)

NEWTIDE

2 1

FROM

SOURCE

BRIDGED

MONO

CHANNELA CHANNELB

TOREDUCE THERISK OF FIRE

BREAKER

ORELECTRIC SHOCK,DO NOT EXPOSETHIS APPARATUSTO RAINOR MOISTURE. SEEINSTRUCTION BEFORE USING!

Channel B

PIN 1+

PIN 1-

WARNING

MODEL

SERIAL

Channel A

PIN 1+

PIN 1-

5.2 Operate MACRO 830/1400/2400 in Parallel (Mono) Mode

In this mode, the Channel A input signal will be output from the output connectors of both Channels.

The Channel B input jack is not used, the Channel A and B volumes can be adjusted independently.

Input wiring tips

BALANCED UNBALANCED

NO USING

CHANNEL A

GND

INPUT

FROM

SOURCE

+ +

SHIELD SHIELD

CH-B

LINE

OFF

BALANCED INPUT

LINE

OFF ON

CH-A

BRIDGED INPUT

BRIDGED

STEREO

PARALLEL

(MONO)

NEWTIDE

2 1

(+)

LF30HZ FILTER

1.15V/20K

CLIP LIMIT

NEWTIDE

2 1

NEWTIDE

2 1

NEWTIDE

2 1

NEWTIDE

2 1

()

PARALLEL

(MONO)

NEWTIDE

3 2 1

INPUT

CONNECTION

(GND)

BRIDGED

STEREO

INPUT

SHIELD

FROM

SOURCE

SRT

T(+)

R( )

S(GND)

BRIDGED

MONO

BREAKER

WARNING

TOREDUCE THERISK OF FIRE ORELECTRIC SHOCK,DO NOT EXPOSETHIS APPARATUSTO RAINOR MOISTURE. SEEINSTRUCTION BEFORE USING!

CHANNELA CHANNELB

MODEL

SERIAL

Channel B

Channel A

NO USING

CHANNEL A

Input wiringtips

BALANCED UNBALANCED

(+)

()

OFF

LF30HZ FILTER

1.15V/20K

OFF ON

CLIP LIMIT

NEWTIDE

2 1

NEWTIDE

3 2 1

NEWTIDE

3 2 1

NEWTIDE

3 2 1

CONNECTION

(GND)

PARALLEL

(MONO)

NEWTIDE

2 1

STEREO

INPUT

BRIDGED

SHIELD

INPUT

SRT

T(+)

R( )

S(GND)

GND

INPUT

FROM

SOURCE

+ +

SHIELD SHIELD

CH-B

LINE

BALANCED INPUT

LINE

CH-A

BRIDGED INPUT

BRIDGED

STEREO

PARALLEL

(MONO)

NEWTIDE

2 1

FROM

SOURCE

BRIDGED

MONO

CHANNELA CHANNELB

TOREDUCETHE RISK OFFIRE

BREAKER

ORELECTRIC SHOCK,DO NOT EXPOSETHIS APPARATUSTO RAINOR MOISTURE. SEEINSTRUCTION BEFORE USING!

Channel B

PIN 1+

PIN 1-

WARNING

MODEL

SERIAL

Channel A

PIN 1+

PIN 1-

5.3 Operate MACRO 830/1400/2400 in Bridged Mode

In this mode, the Channel A input signal will be output from the Bridge output connectors. In this case, use the Channel A volume control to adjust the volume, keep the volume control of Channel B turned completely down (counterclockwise).

Bridged Mode is intended for driving loads with a total impedance of 4 ohms or greater.

Input wiring tips

BALANCED UNBALANCED

(+)

()

OFF

LF30HZ FILTER

1.15V/20K

PARALLEL

OFF ON

CLIP LIMIT

NEWTIDE

2 1

(MONO)

(GND)

INPUT

CONNECTION

BRIDGED

STEREO

SHIELD

FROM

SOURCE

SRT

T(+)

R( )

S(GND)

BRIDGED

MONO

BREAKER

WARNING

TOREDUCE THERISK OF FIRE ORELECTRIC SHOCK,DO NOT EXPOSETHIS APPARATUSTO RAINOR MOISTURE. SEEINSTRUCTION BEFORE USING!

CHANNELA CHANNELB

MODEL

SERIAL

Channel B+

Channel A+

NO USING

CHANNEL A

GND

INPUT

FROM

SOURCE

+ +

SHIELD SHIELD

CH-B

LINE

BALANCED INPUT

LINE

CH-A

BRIDGED INPUT

BRIDGED

STEREO

PARALLEL

(MONO)

NEWTIDE

2 1

NEWTIDE

2 1

NEWTIDE

2 1

NEWTIDE

2 1

NEWTIDE

2 1

6. CAUTION FOR APPLICATION

6.1 General Application Instruction

The following instructions describe the common ways to install your MACRO 830/1400/2400 Professional Stereo Amplifier into a sound application system:

1. First, turn off power switch before connection.

2. Refer to Chapter 5 for speaker connection

3. MACRO 830/1400/2400 Professional Stereo Amplifier may be operated in one of the three modes, please slide the Mode Selector (11) for the specific operating mode.

6.2 Caution for Speaker Connection

The output capacity of out MACRO 830/1400/2400 Professional Stereo Amplifier is very high, be sure to use

a speaker system that has sufficient input capacity. If the input capacity of your speaker system is lower than the rated output of the MACRO 830/1400/2400 Professional Stereo Amplifier, you can protect your speakers by connecting a fuse serially between the speaker and the amplifier as shown below.

(+)

(-)

Output

MACRO2400

PROFESSIONAL HIGH POWER STEREO AMPLIFIER

SIG

CLIP

CH-A CH-B

CLIP

PROT

LTO

OFF

POWER

Use the following formula to determine the fuse capacity according to the speaker's input capacity.

Po=I R I= Po/R Po[W] : Speaker's continuous input capacity (noise or RMS) R[ ] : Speaker's nominal impedance I[A] : Required fuse capacity

As to the speaker cable, if you use a long one, use as thick a cable as possible to prevent deterioration of the damping factor or power loss inside the cable.

Fuse

Speaker

System

7. TECHNICAL SPECIFICATIONS

7.1 Specifications

POWER SPECIFICATIONS

STEREO MODE (Both channels driven)

20Hz~20KHz

Bridge Mono Mode

20Hz~20kHz

ELECTRICAL SPECIFICATIONS

INPUT SENSITIVITY

INPUT IMPEDANCE

FREQUENCY RESPONSE (at 10dB below rated output power)

VOLTAGE GAIN

DISTORTION(SMPTE-1M)

S/N ratio

GENERAL SPECIFICATIONS

PROTECTIONS

CONTROLS

2Ohms

4Ohms

8Ohms

4Ohms

MACRO830

480

300

205

560

800

600W

1.15V(+3.4dBu)

MACRO1400

800

450

310

900

1400

900W

1.15V(+3.4dBu)

MACRO2400

1400

750

575

1500

2500

1500W

1.15V(+4dBu)

10K Unbalanced 20K Balanced

25Hz~25KHz +0/-1dB

-3dB points: 5Hz~50KHz

30dB

<0.03%

32dB 34dB

<0.03% <0.03%

100dB 100dB 100dB

600W

900W

1500W

Full short circuit, open circuit, thermal, ultrasonic, and RF protection stable into reactive or mismatched loads, turn ON/OFF, muting,tried crowbar.

Front: AC switch 40-detect input level control for each channel. Rear: stereo/ parallel/ bridged selector, 30Hz filter selector clip ON/OFF selector.

INDICATORS

CONNECTORS

POWER SUPPLY

DIMENSIONS

WEIGHT

SIGNAL: 2 green LED

POWER: 1 green LED

CLIP: 2 red LED

PROTECTION: 1 red LED

INPUT : Active balanced XLR and 1/4"(6.3mm)TRS OUTPUT: "Touch-proof" binding posts and speak-on jacks.

Available for 110-120V or 220~240V AC, 50/60Hz

483 400 88.8mm(W D H)

13.6kg 15.6kg 19kg

7.2 Block Diagram

OUTPUT

CH-A

MONO

BRIDGED

PAR ALL EL

OUTPUT

CH-B

PWR

INDR

PWR AMP

DIF

TURN-ON CIRCUIT SHOCK

DC OFFSET

MODE

DC SERVO

OVER TEMP

AUTORAMP

+/-

CIRCUIT

SHORT

TRANSIENTS

CURRENT LIMITER

TURN-ON/TURN-OFF

PWR AMP

DIF

OPTION

BINDING POST

TERMINALS

ACTIVE

CH-A

CLIP

CH-B

CH-A

SIG

CH-B

AMP

POWER TRANS

CH-A

AC PWR

DETECTOR

CH-B

IN-RUSH

CURRENT

FANS

2-SPEED

PROT&PRE

30Hz-9dB

E.R

INPUT

CH-A

LINK

SUB WOOFER

1.15VRMS

+4dB

(OPTION)

15Kohm

BALANCED

30Hz-9dB

E.B

INPUT

CH-B

LINK

POWER

SWITCH

AC POWER

120V/220V/230V

(OPTION)

/240V 50/60Hz

CIRCUIT

BREAKER

NOTICE

:XLR CONNECTOR

:1/4" PHONE JACK

CONNECTOR

:SPEAKON

8. WARRANTY

1. WARRANTY REGISTRATION CARD

To obtain Warranty Service, the buyer should first fill out and return the enclosed Warranty Registration Card within 10 days of the Purchase Date. All the information presented in this Warranty Registration Card gives the manufacturer a better understanding of the sales status, so as to purport a more effective and efficient after-sales warranty service. Please fill out all the information carefully and genuinely, miswriting or absence of this card will void your warranty service.

2. RETURN NOTICE

2.1 In case of return for any warranty service, please make sure that the product is well packed in its original shipping carton, and it can protect your unit from any other extra damage.

2.2 Please provide a copy of your sales receipt or other proof of purchase with the returned machine ,and give detail information about your return address and contact telephone number .

2.3 A brief description of the defect will be appreciated.

2.4 Please prepay all the costs involved in the return shipping, handling and insurance.

3. TERMS AND CONDITIONS

3.1 warrants that this product will be free from any defects in materials and/or workmanship for

LTO

a period of 1 year from the purchase date if you have completed the Warranty Registration Card in time.

3.2 The warranty service is only available to the original consumer, who purchased this product directly from the retail dealer, and it can not be transferred.

3.3 During the warranty service, may repair or replace this product at its own option at no charge to

LTO

you for parts or for labor in accordance with the right side of this limited warranty.

3.4 This warranty does not apply to the damages to this product that occurred as the following conditions:

Instead of operating in accordance with the user's manual thoroughly, any abuse or misuse of this product.

Normal tear and wear.

The product has been altered or modified in any way.

Damage which may have been caused either directly or indirectly by another product / force / etc

Abnormal service or repairing by anyone other than the qualified personnel or technician.

And in such cases, all the expenses will be charged to the buyer.

3.5 In no event shall be liable for any incidental or consequential damages. Some states do not allow

LTO

the exclusion or limitation of incidental or consequential damages, so the above exclusion or limitation may not apply to you.

3.6 This warranty gives you the specific rights, and these rights are compatible with the state laws, you may also have other statutory rights that may vary from state to state.

Nilfisk MACRO 830, MACRO 1400, MACRO 2400 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual