Nilfisk MAXIDRIVE3.4 User Manual

User's Manual

3 WAY STEREO

MAXIDRIVE3.4

DIGITAL CROSSOVER

LTO

www.altoproaudio.com

Version 2.4 September 2005

English

SAFETY RELATED SYMBOLS

CAUTION

RISK OFELECTRIC SHOCK

DO NOTOPEN

This symbol, wherever used, alerts you to the presence of un-insulated and dangerous voltages within the product enclosure. These are voltages that may be sufficient to constitute the risk of electric shock or death.

This symbol, wherever used, alerts you to important operating and maintenance instructions. Please read.

Fuse

To prevent fire and damage to the product, use only the recommended fuse type as indicated in this manual. Do not short-circuit the fuse holder. Before replacing the fuse, make sure that the product is OFF and disconnected from the AC outlet.

Protective Ground

Before turning the product ON, make sure that it is connected to Ground. This is to prevent the risk of electric shock.

Never cut internal or external Ground wires. Likewise, never remove Ground wiring from the Protective Ground Terminal.

Protective Ground Terminal

AC mains (Alternating Current)

Hazardous Live Terminal

ON: Denotes the product is turned on.

OFF: Denotes the product is turned off.

WARNING

Describes precautions that should be observed to prevent the possibility of death or injury to the user.

CAUTION

Describes precautions that should be observed to prevent damage to the product.

Disposing of this product should not be placed in municipal waste and should be Separate collection.

WARNING

Power Supply

Ensure that the mains source voltage (AC outlet) matches the voltage rating of the product. Failure to do so could result in damage to the product and possibly the user.

Unplug the product before electrical storms occur and when unused for long periods of time to reduce the risk of electric shock or fire.

External Connection

Always use proper ready-made insulated mains cabling (power cord). Failure to do so could result in shock/death or fire. If in doubt, seek advice from a registered electrician.

Do Not Remove Any Covers

Within the product are areas where high voltages may present. To reduce the risk of electric shock do not remove any covers unless the AC mains power cord is removed.

Covers should be removed by qualified service personnel only.

No user serviceable parts inside.

Operating Conditions

Always install in accordance with the manufacturer's instructions.

To avoid the risk of electric shock and damage, do not subject this product to any liquid/rain or moisture. Do not use this product when in close proximity to water.

Do not install this product near any direct heat source.

Do not block areas of ventilation. Failure to do so could result in fire.

Keep product away from naked flames.

IMPORTANT SAFETY INSTRUCTIONS

Read these instructions

Follow all instructions

Keep these instructions. Do not discard.

Heed all warnings.

Only use attachments/accessories specified by the manufacturer.

Power Cord and Plug

Do not tamper with the power cord or plug. These are designed for your safety.

Do not remove Ground connections!

If the plug does not fit your AC outlet seek advice from a qualified electrician.

Protect the power cord and plug from any physical stress to avoid risk of electric shock.

Do not place heavy objects on the power cord. This could cause electric shock or fire.

Cleaning

When required, either blow off dust from the product or use a dry cloth.

Do not use any solvents such as Benzol or Alcohol. For safety, keep product clean and free from dust.

Servicing

Refer all servicing to qualified service personnel only.

Do not perform any servicing other than those instructions contained within the User's Manual.

PREFACE

Dear Customer:

Thanks for choosing MAXIDRIVE3.43-WayStereo Digital Crossover 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 LTO line presents unparalleled analogue and digital products made by Musicians for Musicians in our R&D 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 een developed by ourb 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 would 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, the best fruits of our continuous researches and the best prices.

Our AXIDRIVE3.43-WayStereo Digital Crossover is the result of many hours of listening and tests involvingM common people, area experts, musicians and technicians. The results of this effort is a DSP hi-performance equalizer that can be used in applications as musical performances, Installation and sound reinforcement. Besides we offer to you a number of factory EQ curves that we collected and transformed in presets now available in our small, efficient and easy to use AXIDRIVE3.4.M

Nothing else to add, but that we would like to thank all the people that made the AXIDRIVE3.4 a reality available toM our customers, and thank our designers and all the LTO staff, people who make possible the realization of products containing our idea of music and sound and are ready to support you, our Customers, in the best way, conscious that you are our best richness.

Thank you very much

LTO AUDIO TEAM

TABLE OF CONTENTS

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

2. FEATURES .............................................................................................................................................4

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

3.1 The Front Panel

3.2 The Rear Panel

4. GETTING STARTED ..................................................................................................................... 6..........

4.1 Configuration of The System

4.2 Adjust The Input Signal

4.3 First Setup

4.4 System Configuration

4.5 Number of Presets

4.6 Type of Preset

4.7 Name of The Preset

4.8 Preset Modifications

4.9 System Protection

5. ..................................................................THE MENU MAP CONFIGURATION DESCRIPTION ....... 10

5.1 Preset Menu

5.2 Delay Menu

5.3 Edit Menu

5.4 Utility Menu

6. CONNECTIONS .......................................................................................................................... ........31

7. APPLICATION ........................................... ..................................................................................... ......32

7.1 Factory Preset Configuration

7.2 Organization

8. TECHNICAL SPECIFICATIONS ......................................................................................................... 38

9. WARRANTY ........... ..................................................................................................................... ..........39

1. INTRODUCTION

Your MAXIDRIVE3.4 is a 3-way stereo digital crossover and it is a powerful versatile signal processor. The apparatus will provide 3, 4, 5 or 6-way mono X-over with 6 outputs. Thanks to the use of selected and expensive components, the performances of MAXIDRIVE3.4 are worth much more than its price: you can set the input and output routing configuration only through recalling one of the Presets included in the internal memory.

2. FEATURES

Single rack unit Delay lines up to 2.5s for each input and up to 300ms for each output Stereo digital input in AEX/EBU format A/D and D/A converters for a 117dB dynamic range Slot for a memory card for the storage of more presets and an easier upgrade of other units 10 Factory presets, 64 user presets and 128 card presets by large memory capacity Switching power supply Remote control manufactured under QS9000, VDA6.1 certified management system

3. CONTROL ELEMENTS

3.1 The Front Panel

LTO

CARD

ENTER

CLIP

ESC

INPUT LEVEL

CLIP

LIMIT

OUTPUT

LEVEL

MUTE MUTE MUTE MUTE

PRESET

MODE

DELAY

EDIT

UTILITY

PREV NEXT

4321

CLIP

LIMIT

OUTPUT

LEVEL

MUTE

LEVEL

CLIP

LIMIT

OUTPUT

LEVEL

3-WAY STEREO

DIGITAL CROSSOVER

MUTE

1.MODE button

The button allows you to select four modes: PRESET, DELAY, EDIT and UTILITY. Pressing MODE repeatedly to reach to the required menu and the corresponding LED will light up. You can edit the parameters of the selected menus. If none of the menu LEDs is lit, the Display shows the name of the current PRESET and no parameters can be modified.

2.LEDs

These LEDs indicate the selecting status of the menus.

3.Display

Rear-lit 2 16 display. It shows the pages of the various menus and the relative parameters.

4.DIAL knob

The knob allows you to edit value of the selected parameter. The value raises while turning the DIAL clockwise and lowers counterclockwise.

5.PREV/NEXT button

Each menu comprises several pages. These buttons allow you to turn over the pages and/or a variable number of parameters.

6.Navigation cursor keys

Each editing page comprises a variable number of parameters (fields). The right and left keys allow you to select the various required parameters via controlling the movement cursor in the page.

of the

7.Memory Card Slot

The Slot allows you to insert the Memory Card which is very useful for safe storage of PRESETS and for transfer from

one MAXIDRIVE3.4 to another.

8.ENTER key

The key allows you to access to the selected editing . P ou can edit and confirm

page ressing this key, y the required

value of parameter.

9.ESC key

The key allows you to exit the selected editing page. It also used to reject the value to enter and return to the stored value.

10.Input Level LEDs

The LEDs are used to indicate the level of input A/B. In order to get an up-front distortion-free signal, you keep the signal quite high, but do assure that the red CLIP LED doesn't light up continually.

11.Mute switches

There are six mute switches (1-6). They are used to mute the signal of the respective outputs. When the switch is on, the corresponding led will light up. These switches can avoid signal peaks when switching on and off the sound system and isolate the individual audio sections during testing or checking sound, etc.. The restored Mute function can be set to use the Wake Up Function (Utility menu Misc. Setup submenu) and can be set as Normal (last setting before the unit was switched off) or Mute (all outputs automatically forced into Mute status).

their

12.Output Level LEDs

These LEDs indicate the level of the respective outputs (you can adjust the output via adjusting the Output Gain parameter of Edit menu.)

Note: The LIMITER on any output will change the way in which the level is displayed on the corresponding LED. In fact, the level shown on the ladder is no longer the "absolute" output level, but the level of the signal at -24dB,

-12dB, -6dB compared to the limiter threshold (indicated by the orange LIMIT LED).

3.2 The Rear Panel

210-240VT315mAL

Apparatenskall anslutas till jordatuttag nar den ansluts

PUSH

tillett natverk

PWR

NEW TIDE

OFF

DIGITALIN

RS485 OUT RS485 IN RS232

15 16 17 18

PUSH

NEW TIDE

OUTPUTS

PUSH

NEW TIDE

AC INPUT 14W

95-240V 50/60Hz FUSE:95-120V T500mAL

A102

13.AC inlet and fuse holder

Use it to connect your MAXIDRIVE3.4 to the supplied AC cord. Please check the Voltage in your country and what voltage for your MAXIDRIVE3.4 is configured before attempting to connect the unit for the main AC. The fuse can protect the AC supplies circuit of the equipment. CAUTION: If there is something wrong with the fuse or the fuse needs to change, please refer to a qualified technician. If the fuse continues to blow after replacing, discontinue using of this unit before being repaired.

PUSH

NEW TIDE

132

INPUTAINPUT B

14.Power Switch

The switch is used to turn the main POWER on and off. Note: before turning on the unit, please make sure the amplifiers of the sound system are off to avoid the annoying and sometimes dangerous signal peaks.

15.Digital In

Use the balanced XLR-F connector (one cable is enough to feed both inputs connect the processor to units fitted with AES/EBU digital outputs. In this case, the two bypassed convention will improve the quality of the signal. A signal connected to the digital input has the same processing as that connected to analog input. The Digital/ Analog input selection can be set by using the Input Select function (Utility Menu-Misc. Setup Submenu).

16.RS485 OUT

This is the standard serial communication interface port. It allows outgoing communication between a MAXIDRIVE3.4 and PC or other MAXIDRIVE3.4 units. The RS485 interface is very suitable for remote control over long distances (difficult with RS232 standard ports) and daisy-chaining several MAXIDRIVE3.4.

17.RS485 IN

The function of the RS485 IN port is opposite to RS485 OUT. It allows incoming communication between a MAXIDRIVE3.4 and PC or other MAXIDRIVE3.4 units. The RS485 interface is very suitable for remote control over long distances (Difficult with RS232 standard ports) and for daisy-chaining several MAXIDRIVE3.4.

18.RS 232

This is the serial communication interface port. It allows incoming and outgoing communication between a MAXIDRIVE3.4 and a PC or other MAXIDRIVE3.4 units. Communication protocol includes:

-Remote control: 1). Connect the MAXIDRIVE3.4 to a PC; 2). It is possible to use the LTO editing software to control functions of all the processor remotely.

-Preset Dump: 1). Connect two MAXIDRIVE3.4; 2). It's possible to Dump the single Presets from one unit to another (refer to Dump procedure).

-Program Change commands send/receive: 1). Connect two DAXIDRIVE3.4; 2). When a Preset is recalled on the first one, it's possible to send a Program Change command to the second one to recall the same Preset number (refer to Load Preset procedure).

19.OUTPUTS

These (Outputs1~6) are balanced XLR-M connectors. The high quality, low noise, 20 bit converters can make A/D conversion.

20.INPUTS

INPUT A and INPUT B are compatible with balanced XLR and JACK. They are audio connectors of the respective sections. The high quality, low noise, 20 bit converters can make A/D conversion.

4. GETTING STARTED

The powerful versatile signal processor MAXIDRIVE3.4 is mainly designed for use with audio systems. Its routing

figurations of the input and output can be only set by recalling one of the PRESETS included in the internal memory. So the user must be very clear about the main function of the unit in order to get a best operation of your MAXIDRIVE3.4. Before you start your operation, please read the following parts carefully:

4.1 Configuration of the system

At first, switch off the equipment, carry out the audio and power connection from the various components of your

sound system.

Then, connect the main cord and only switch on the MAXIDRIVE3.4. The display will show the data regarding with the operating system release for a few seconds.

con-

MA X DR I

Meanwhile, the system will restore the exact operating conditions at the time of switching off.

Re l e ase 1 .0

3.4

And the system Will enter into default status, showing the main operating information on the display.

A13 B24 S56

2 F 2x2W+2MAX

Set all the MAXIDRIVE3.4 outputs in status (LEDs lit) by pressing the relative keys.MUTE

Load the containing the you've found.Factory PRESET configuration

Press the Key until the menu LED lights up.MODE PRESET

The display will show the page:Load PRESET

Load

3 F 2x3W

available, there are already some optimised for the specific speaker enclosures being used.

Press .ENTER

The display shows the PRESET loaded in the units memory and the relative configuration:

Preset

A13 B2456

(example)

3 F 2x3W

4.2 Adjusting the input signal

It is much more important to set the input signal of a digital unit than that of excessivelyan analog unit, because high input signals will make particularly distinct noise (highany saturation of the A/D converters cause a typical level square wave).

Proceed as follows:

Keep the MAXIDRIVE3.4 outputs in status (LEDs light on).MUTE

MAXIDRIVE3.4'sFeed a signal in on the input and watch the LED ladders.INPUT LEVEL A-B

To obtain a good signal/noise ratio, i.e. an up-front distortion-free signal, keep the signal quite high, but make

certain the red CLIP LED doesn't light up continually.

Find out the output level setting for your mixer (or other unit) and connect it to the input of the MAXIDRIVE3.4.

MAXIDRIVE3.4Adjust the input gain if necessary:

the PRESETSUse the to find the necessary Factory PRESET (indicated by the letter ). Check that if, amongDIAL F

Press the key until the menu LED lights up.MODE EDIT

Use the and keys to go to the page:PREV NEXT Input Gain

Input Gain

Press ENTER.

The display will show the page (according to the configurationINA Gain or INA&B Gain and other utilities loaded in the memory):

INA

Use the to change the gain value and watch the level of the signal on the LED ladders until the ideal valuesDIAL are reached.

GA I N

INA

.0dB0

GA I N

.0dB0

INA

GA I N

INA

.5dB2-

Then use the and keys to access to the page (if there is one, this will depend on the con-PREV NEXT INB Gain figuration and the other utilities loaded in the memory). Repeat the settings as explained above.

GA I N

.0dB6+

4.3 First Setup

At this point, the first custom setup can be prepared. The following is only the description of setup procedure. The detailed specifications of each parameter are shown in the respective paragraphs of the manual.

Firstly, set the following parameters in order:shown

Output Pol. Polarity of the outputs Xover Crossover frequencies (separation of the speaker channels) Output Delay Alignment of the speaker enclosure components Output Gain Levels of the outputs

Note: The regulation of the MAXIDRIVE3.4's parameters is closely related to the characteristics of the com-

ponents of the sound system. So if you're not the expert, please refer to the documentation and technical specifications of your power amplifiers, loudspeaker enclosures, monitors, etc.. This will enable you to work faster and safely.

(if you have the necessary equipment) and any corrections required.

Then, if necessary, adjust the values of the following functions:

Output EQ Output equalizers Output Limiter Output limiters

Note: In this first phase of setting up your sound system, the adjustment of these functions (which if not Indis

-pensable during installation) can wait. But do remember that adjusting the equalizers can also affect the signal level. So if considerable equalization changes are made, remember to check and adjust the output levels too, if necessary.

4.4 System configuration

A13 B24 S56

2 U 2x2W+2MAX

The bold letters indicate the inputs:

A = Input A B = Input B S = SUM (sum of inputs A and B)

checksDisable the MUTE function on the outputs you intend using and listen the sound, carry out instrumental

Numbers and indicate the respective outputs.1, 2, 3, 4, 5 6

In the example:

The signal connected to Input is assigned to outputs and .A13 The signal connected to Input is assigned to outputs and .B24 The of the signal on inputs and is assigned to outputs and .Sum AB 56 The system is therefore configured as shown in the following diagram.

A13 B24 S56

LEFT

RIGHT

2-WAY STEREO + 2 MONO AUX (2X2W + 2MAX)

A+B

OUT

HIGH LEFT

HIGH RIGHT

LOW LEFT

LOW RIGHT

MONO AUX L +R

4.5 Number Of PRESETS

A13 B24 S56

F 2x 2W+2MAX

10 Factory PRESETS, 64 User PRESETS and 128 Card PRESETS are available.

4.6 Type of PRESET

A13 B24 S56

F 2x2W+2MAX

There are 3 categories of PRESETS:

F = Factory PRESETS factory programmed, cannot be permanently changed.

These include all the system's usable configurations. These are the starting points for Creating User PRESETS and Card PRESETS from scratch.

U = User PRESETS can be programmed by users.

C = Card PRESETS

can be programmed by users and stored on a Multimedia Memory Card.

4.7 Name of the PRESET

A13 B24 S56

2 2x2W+22 MAX

In the example, the name indicates a two-way stereo system + two auxiliary mono outputs.

4.8 PRESET Modifications

A13 B24 S56

U 2x2W+2MAX

This indicates that the value of one or more parameters has been temporarily modified with respect to the stored in the PRESET shown. Practically speaking, this indication means that the changes made to the PRESET have not been stored.

Note: once it has been enabled, the indication remains even if the "original" values are reset manually.

The indication disappears as soon as the PRESET is saved or as soon as a new PRESET is loaded (including this same PRESET).

In other words, the indication disappears as soon as stored values are accessed. If the PRESET isn't saved, temporary changes are lost as soon as a new PRESET is loaded (including this same PRESET).

Note: temporary changes are kept on the other hand in the "buffer memory": when the unit is switched on, the system maintains exactly the same settings as when the unit was switched off, including temporary changes.

4.9.System Protection

These indications appear when the function ( menu) is enabled, i.e. when the system is totally ( )LOCK UTILITY T or partially ( ) protected against accidental or unauthorized changes (even if temporary).P Protection is ensured by a , without which editing procedure can't be unlocked.password

IMPORTANT! ,If you can't remember the password there is an easy way for you to unlock the protection. Turn the unit on, and almost "at the same time", press "PREV" and " " keys. Now, the protection is unlocked.

A13 B24 S56

U 2x2W+2 AX

5.THE MENU MAP CONFIGURATION DESCRIPTION

The control software is organized in and , each of which contains the relativePRESET, DELAY, EDIT UTILITY menus types of parameters and functions.

5.1.Preset Menu

PRESET

Load Preset

Store Preset

A13 B24 S56

U 2x2W+2MAX

Dump Out Preset

Incoming Dump

There are 3 distinct categories of PRESETS:

Factory PRESETS

Factory-programmed storage.

Factory PRESETS can be used normally, temporarily modified, but can't be cancelled, overwritten or permanently modified. Factory PRESETS contain some specific settings for certain types of enclosures and all the system's usable configurations. For this reason they're the ideal starting point for creating custom PRESETS.

User PRESETS

Card PRESETS

5.1.1 Load PRESET

This menu page allows the required PRESET to be loaded and made operatively.

To load a PRESET:

Use the to reach the required PRESET.DIAL

10 Factory PRESETS, 64 User PRESETS and 128 Card User PRESETS are available.

Note: since the system must always be configured, there are no empty memory areas. All the User and Card

areas unused by custom are automatically occupied by the , which containsPRESETS *Default* PRESET a standard start configuration with all the values of the various parameters at zero.

Stored data that can be programmed by users.

User PRESETS are internal memory areas in which your own personal settings can

be saved.

Stored data which can be programmed by users on a Multimedia Memory Card. Card PRESETS are external memory areas in which your own personal settings can

be saved.

Load

2 U 2x2W

Preset

+2MAX

Load

Scrolling through the 128 memory areas reserved for the Card when the Multimedia Memory Card isn't inserted, the display shows the following message:

Press ENTER.

The system returns to default status and the display shows the information on the PRESET that has just been loaded.

Preset *Defaul t *

Load 128

Preset

NO CAR D

A135

x3W

B246

A135

*Defaul t *

B246

Note: Factory PRESET #3In the example, , named "2x3W" has been loaded: Its system configuration is Input A

signal assigned to outputs 1, 3 and 5; Input B signal assigned to outputs 2, 4 and 6.

Loading a PRESET, a PRESET Change command is also automatically sent to the serial ports and can be used to automatically load a PRESET with the same number to any other MAXIDRIVE3.4 units connected and enabled (Refer to menu submenu option).UTILITY - Comm. Setup - PRESET Change RX

5.1.2 Store & Naming PRESET

Use this menu to create new PRESETS, i.e. to save all the current system settings.

Store

2 U 2x2W

To save a PRESET: Use to reach the memory area in which the PRESET is to be saved.DIAL

Note: Factory PRESET Factory PRESETS

In this procedure, the areas aren't available, since the can not be

permanently remember that it is possible to load a Factory modified. Nevertheless save it in a

User PRESET Card PRESET User or Card

area.

Note: PRESETSScrolling through the memory areas, the display shows the number, type and name of the

contained in them; scrolling through the 128 Card memory areas without the Multimedia Memory Card, a warning appears on the display:

Store

3 U Op e

Press The page appears, by means of which it s possible to edit the name of theENTER. PRESET Naming PRESET to be saved.

or area, modify it as required and then store it again in the same

Preset

raHal l 1

Preset

+2MAX

PRESET,

Store

1 C N

01 O CARD

Preset

Note: If you're in one of the 128 memory areas reserved for the Card and you remove the Multimedia Memory Card

before pressing nothing happens: the display remains unchanged and Store procedureENTER, PRESET remains unvaried.

The name of the start PRESET (i.e. of the PRESET currently loaded) is proposed as default. The cursor takes up position on the first of the twelve character spaces available.

Pr es m n

2W+2

At this point:

If you decide to accept and confirm the name suggested, press ENTER. If you want to abort procedure (for example because you've chosen the wrong memory area) andNaming return to Store PRESET procedure, press .ESC If you want to assign a new name to the PRESET you're storing:

- use the and keys to position the cursor on the required character

- use to enter the alphanumeric value wantedDIAL

- after finishing, press ENTER.

Naet

MAX

+ 28 hidden pages