Alto Drive-3.4 Users Manual

Download

English

LTODRIVE3.4

User's Manual

3 WAY STEREO

DIGITAL X OVER

LTO

www.altoproaudio.com

Version 1.2 January 2003

SAFETY RELATED SYMBOLS

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

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 LTODRIVE3.4 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 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 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 LTODRIVE3.4 is the result of many hours of listening and tests involving common people, area experts, musicians and technicians; nothing else to add, but that we would like to thank all the people that made the LTODRIVE3.4 a reality available to 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

LTOAUDIOTEAM

TABLE OF CONTENTS

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

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

3. ................................................FRONT AND BACK PANELS DESCRIPTION .....................4

3.1 The Front Panel

3.2 The Rear Panel

4. INSTALLATION & CONNECTION ............................................................... ............5.........

4.1 Power Up and Audio Connections

a. Audio Connections

b. Power Up Setting

4.2 Operational Overview

4.2.1 UTILITY MENU

a. Load Preset

b. Store Preset

c. MIDI Setup

d. VU-Meter

e. Password

4.2.2 EDIT MENU

a. Routing

b. IN L/IN R

c.OUT1/2/3/4/5/6

5. ......................................................APPLICATION ILLUSTRATION...................... .........12

5.1 LTODRIVE 3.4 2-Way Input, 6- Way Output (High, Mid, Low, Sub Level)

5.2

LTODRIVE3.4 2-Way Input, 6- Way Output (High, High, Low, Low Level)

6. ......................................................MIDI STANDARD CONTROL...................... ..............14

7. TECHNICAL SPECIFICATIONS ............................................................................ .........16

8. WARRANTY ........... ................................................................................. .....................18

1. INTRODUCTION

Thank you very much for expressing your confidence in LTO products by purchasing our LTODRIVE3.4 . With the LTODRIVE3.4 you have acquired an extremely musical and flexible Active Crossover which will provide you also the subwoofer application. Our new LTODRIVE 3.4(2 inputs , 6outputs , matrix-like operation X-over) allows the user to work with the quality of the 2/3 by 24 32-bit DSPs, permits extremely precise and fast speakers control and equalization for PA systems with the power of a matrix process allowing each kind of combination in assigning the 2 inputs to the 6 outputs. The LTODRIVE 3.4is based on2/3 extremely powerful , high-speed 24 32-bit DSP and very high quality 20-bit A/D and 24-bit D/A converters, preserving the pureness of analogue sound in your digital applications. The 128 64 graphical display and the 14 buttons and the relative encoder available on the front panel, offer an easy way of editing data, so to create new custom powerful and exciting presets which may then be stored in the unit as user's presets . The integrated MIDI interface permits real-time editing with a powerful pc based SW or a MIDI standard sequencer. Both input channels feature a digital , high quality filters 5-band parametric equalizer, allowing boost/attenuation of 15 dB in 0.5dB increment's steps. On each output channel is possible to have a 4 order low pass and a

high pass filters, limiter /compressor and polarity switchable 0 or 180 .

2.FEATURE LIST

Single Rack Unit Robust and Compact Design 24 32-bit High Speed Signal Processor Open Architecture for Easy Software Updates Windows Editor for Easy to Use and Powerful Pc Based MIDI Remote Control 5 Parametric EQ for Each Channel Band Pass Filter Available (Until 24dB/Oct) for Each Output Channel Up to 0.5 sec. of Delay per Channel by Step from 21 ms to 2ms Lock-System for the Editing Functions Manufactured Under ISO9001 Certified Management System.

3.FRONT AND BACK PANELS DESCRIPTION

3.1.The Front Panel

CLP

-12

-18

-24

-30

LTO

1.Power SW with LED

2.Mute buttons and LEDs for CH1, CH2, CH3, CH4, CH5, CH6

3.Utility key and LED

4.Edit key and LED

5.Dial knob(encoder)

6.Enter key

7.ESC key

8.Up key

9.Right key

10.Down key

11.Left key

12.Graphic display

13.Vu-meters

LEFT

RIGHT

DOWN

101197 4

ENTER

3658

UT LITY

ESC

ED T

MUTE CH1

MUTE CH2

MUTE CH4

MUTE CH5MUTE CH3

MUTE CH6

POWER

LTODRIVE3.4

3 WAY S ereo

Digi al X Over

OFF

Power SW with LED (1)

Turns the apparatus on and off. Press this SW, the power LED inside the SW will turn on.

Dial Control knob (5)

Used to change editable values.

3.2.The Rear Panel

AC INPUT

95-240V 60-50Hz RatedPower Consumption 15W

FUSE

210-240V T250mAL 250VAC 95-120V 500mA 250VAC REPLACEFUSE W TH CORRECT TYPEONLY

Apparaten skallanslutas t ll jordat uttagnar den ansluts t llett natverk

MODEL

SER AL

MIDI

INPUTTHRUOUTPUT

OUTPUT1OUTPUT2OUTPUT3OUTPUT4OUTPUT5OUTPUT6

14.Input Connector for Input1 and Input2

15.Output Connector for Output1~Output6

16.MIDI Connector

17.Power Connector

Inputs(14)

These are XLR balanced connectors which connect to sources such as the channel inserts on mixing consoles. They may be used with nominal input levels f om consumer to professional audio.r

Outputs(15)

LTODRIVE3.4 has 6 outputs, they are XLR balanced connectors which connect to devices such as

the channel inserts on mixing console or power amplifier inputs .

PUSH

NEW TDE

INPUT1INPUT2

14151617

PUSH

NEW TDE

MIDI Connectors(16)

-MIDI in: 5-poles DIN connector for the MIDI input to the LTODRIVE3.4.

-MIDI thr: 5-poles DIN connector for the MIDI thr.

-MIDI out: 5-poles DIN connector for the MIDI output f om the LTODRIVE3.4.

Power Connector(17)

This is an IEC 3-pole socket for connecting the AC power supply to the LTODRIVE3.4.

4. INSTALLATION & CONNECTION

4.1.Power Up and Audio Connections

a. Audio Connections

The connections between the LTODRIVE3.4 and the other audio devices have to be made using high quality cables so to prevent bad performances of the LTODRIVE3.4 itself. So it should be good to use low-capacitance shielded cables with a flexible internal conductor. Connect the cables to the LTODRIVE3.4 properly by observing the following precautions:

Do not bundle audio cables with AC power cords.

Do not place audio cables and LTODRIVE3.4 near sources of electromagnetic interference such as

transformers, monitors, computers, etc. Always unplug cables by firmly grasping the body of the plug and pulling directly outward. Do not place cables where they can be stepped on. Avoid twisting a cable or having it make sharp, right angle turns.

b. Power Up Setting

Before turning on the LTODRIVE3.4's power, check if:

All connections have been made correctly. The volume controls of the amplifier or mixer are turned down.

Insert the Power plug into the POWER input on the rear panel of the LTODRIVE3.4 and plug the power cable into an AC outlet. Turn on the power of the LTODRIVE3.4, pushing the ON/OFF button on the front panel. Turn on the power of the amplifier/mixer, and adjust the volume.

4.2.Operational Overview

At system startup the following splash screens will be shown on the graphic display.

ALTODRIVE3.4

Version1.0

Wait

Init System

The LTODRIVE is booting and initializing its hardware and software, loading the last used preset and the user interface. The process lasts a few seconds, afterwards the system goes to the Utility Menu (Utility Led is ON).

4.2.1 UTILITY MENU

The Utility menu is accessed by means of the Utility key (Utility Led is ON). The display shows as flowing figure:

UTILITY MENU

LOAD

STORE

MIDI

PRESET 01

VU-M

PASSW

UNLOCK

Use Up/Down/Left/Right keys to select one of the five fields. Use Enter to access the selected sub-menu.

a. Load Preset

With this function it's possible to load one of the 65 available presets.

LOAD

Name: Num:

PRESET 01

PRESET

1/1

PRESET 01

Name: Num:

LOAD

PRESET

1/1

In this window the user can read the name, number and type of the currently loaded preset. 1/1 indicates the number of page; when it's selected it is possible to get back to the main menu pressing the Esc key. With the Up/Down key it's possible to select the preset or page number fields, selection is high lighted printing the item in reverse color. To load a preset it is necessary to select the preset item; using the dial it is possible to choose the desired preset, to be confirmed pressing the Enter key. If the user tries to load an empty preset, an error message (NO LOADING) is shown for some seconds. To go back to main menu, select page number, then press Esc.

b. Store Preset

With this function it's possible to store preset data into one of the 64 user available presets.

STORE

Name: Num:

PRESET 01

EMPTY

1/1

In this window the user can read the number of the location in which to save the current preset data. With the Up/Down key it's possible to select the preset or page number fields, selection is high lighted printing the item

in reverse color.

To save a preset it is necessary to select the Preset item; using the dial it is possible to choose the desired preset number, to be confirmed pressing the Enter key.

After data saving, a character string (preset name) will be shown to the user for editing (max 8 chars).

STORE

Name: Num:

EMPTY

PRESET 01

1/1

Using Left and Right keys the user can move into the string, with the dial the blinking character can be edited, Enter confirms the choice and Esc cancels operation allowing to maintain the old preset name. Upon confirmation the new preset name will be shown in the lower left corner of the window and in the Name field.

To get back to the main menu, select 1/1 and press the Esc key.

c. MIDI Setup

This function allows a simple MIDI configuration:

MIDI

CHANNEL

OUT EN. OFF

PRESET 01

1/1

with the Up/Down key it's possible to select the MIDI channel and/or the output enable; selection is high lighted printing the item in reverse color.

MIDI

CHANNEL

OUT EN. OFF

PRESET 01

1/1

PRESET 01

MIDI

CHANNEL

OUT EN. OFF

1/1

With the dial it is possible to change the value of the parameter, which will be operating immediately (no confirmation needed). To get back to the main menu, select 1/1 and press the Esc key. These two parameters are system settings, ie. They don't belong to a particular preset.

d. VU-Meter

This sub-menu has 2 pages: the first (1/2) shows the 6 output volumes, the second (2/2)the activity of the 6 limiters.

CLIP

123456

OUT VOL

PRESET 01

-30

1/2

Enter accesses the next page, Esc gets back to the precedent.

123456

LIMITER

PRESET 01

2/2

e. Password

With this function the user can decide if the device has to be protected from unauthorized tampering:

PASSWORD

000000

NEW PASSWORD

PRESET 01

1/1

With the Up/Down key it's possible to select the Password, New Password and page number items; selection is highlighted printing the item in reverse color.

PASSWORD

000000

NEW PASSWORD

PRESET 01

1/1

To have complete access to the system, the fields PASSWORD and NEW PASSWORD must match. If the user wants to restrict system access, it is sufficient to change the PASSWORD field. In this condition the user is not able to access UTILITY functions, except the PASSWORD screen. If the user wants to restore complete access to all the system functions, it is sufficient to change the PASSWORD field again to match the other field.

If the two fields aren't matched, the NEW PASSWORD field results blank, in order to protect the system password; when the two fields are matched, the NEW PASSWORD content becomes visible and therefore may be changed, allowing to change the system password; to change a password, select the character string, use Left/Right keys to select a character and change the character using the dial. The default password when the LTODRIVE3.4 is shipped is 000000 (all zeros).

Never forget the system password! If you forget the system password you will be unable to unlock your LTODRIVE3.4; a lost password

unrecoverable. Consult your LTO dealer in order to restore and unlock the system.

When the LTODRIVE3.4 is password protected, the LOCK indication appears on screen (see below).

UTILITY MENU

LOAD

STORE

MIDI

PRESET 01

VU-M

PASSW

LOCK

4.2.2 EDIT MENU

Edit key gives access to this menu (Edit LED is ON). Use Up/Down/Left/Right keys to select one of the seven fields. Use Enter to access the selected sub-menu.

EDIT MENU

ROUT OUT 1

IN L

IN R

PRESET 01

OUT 2 OUT 3

OUT 4 OUT 5 OUT 6

a. Routing

This function allows to configure the signal input/output path:

1/1 indicates the number of page; when it's selected it is possible to get back to the main menu pressing the Esc key.

ROUTING

PRESET 01

1 2 3 4 5 6

O U T

1/1

With the Up/Down keys it is possible to select the inputs and the outputs sequentially. In the pictures below the selection sequence is shown.

ROUTING

PRESET 01

1 2 3 4 5 6

O U T

1/1

ROUTING

PRESET 01

1 2 3 4 5 6

O U T

1/1

ROUTING

PRESET 01

1 2 3 4 5 6

O U T

1/1

The Right/Left keys make/cut the connection between the selected input and output. In the case above, pressing the Right key, the Left channel will be connected to the OUT 3 channel.

ROUTING

PRESET 01

1 2 3 4 5 6

O U T

1/1

To get back to the main menu, select 1/1 and press the Esc key.

b.INL/INR

Here input channels can be configured:

PEQ 01

G: 00.0

B: 0.15F: 20

PRESET 01 IL

PEQ 01

G: 00.0

PRESET 01 IL

1/2

PEQ 01

PRESET 01 IL

PEQ 01

F: 20B: 0.15F: 20

PRESET 01 IL

G: 00.0 B: 0.15F: 20

1/2

G: 00.0 B: 0.15

1/2

This graphic screen shows the frequency response of the channel.

Use Up/Down/Left/Right keys to select one of the five fields: Page Number, Filter Number, Gain, Frequency, Bandwidth. The selected value can be changed by means of the dial. The selected filter's frequency will be shown by a vertical segment on the display (see above).

When a filter parameter is modified, the audio signal is processed real-time, while the picture on the display waits briefly to update. During this waiting time, an asterisk is shown in the upper right corner of the window, until the graphic is processed.

To access the following screen select page number and press Enter, to get back press Esc.

DLY. A 000 ms

DLY. F 0000 us

VOL. 0.00 dB

PRESET 01 IL

DLY. A 000 ms

DLY. F 0000 us

VOL. 0.00 dB

PRESET 01 IL

2/2

DLY. A 000 ms

DLY. F 0000 us

VOL. 0.00 dB

PRESET 01 IL

DLY. A 000 ms

DLY. F 0000 us

VOL. 0.00 dB

PRESET 01 IL

2/2

Use Up/Down/Left/Right keys to select one of the four fields: Page Number, Volume, Delay Fine, Delay Adjust; the selected value can be changed by means of the dial. To access the precedent screen select page number and press Esc.

c.OUT1/2/3/4/5/6

Here output channels can be configured:

EDIT PARAMETRIC FILTERS (page 1 of 4)

PEQ 01

PRESET 01 O1

PEQ 01

PRESET 01 O1

PEQ 01

PRESET 01 O1

G: 00.0 B: 0.15F: 20

1/4

PEQ 01

PRESET 01 O1

PEQ 01

PRESET 01 O1

G: 00.0 B: 0.15F: 20

1/4

This graphic screen shows the frequency response of the channel. Use Up/Down/Left/Right keys to select one of the five fields: Page Number, Filter Number, Gain, Frequency, Bandwidth. The selected value can be changed by means of the dial. The selected filter's frequency will be shown by a vertical segment on the display (see above). When a filter parameter is modified, the audio signal is processed real-time, while the picture on the display waits briefly to update. During this waiting time, an asterisk is shown in the upper right corner of the window, until the graphic is processed. To access the following page select page number and press Enter. Esc returns to main menu.

EDIT HP/LP

HF: 21 ORD: 0 LF:20K0 ORD: 0

PRESET 01 O1

HF: 21 ORD: 0 LF:20K0 ORD: 0

PRESET 01 O1

2/4

HF: 21 ORD: 0 LF:20K0 ORD: 0

PRESET 01 O1

HF: 21 ORD: 0 LF:20K0 ORD: 0

PRESET 01 O1

2/4

Use Up/Down/Left/Right keys to select one of the five fields; Page Number, Freq Low Pass, Order Low Pass, Freq High Pass, Order High Pass. Hi Pass and Low Pass filters are of Butterworth type; the selected value can be changed by means of the dial.

To access the following page select page number and press Enter. Esc returns to precedent page.

EDIT PARAMETERS

DLY. A 000 ms

DLY. F 0000 us

VOL. 0.00 dB

PRESET 01 O1

DLY. A 000 ms

DLY. F 0000 us

VOL. 0.00 dB

PRESET 01 01

3/4

DLY. A 000 ms

DLY. F 0000 us

VOL. 0.00 dB

PRESET 01 O1

DLY. A 000 ms

DLY. F 0000 us

VOL. 0.00 dB

PRESET 01 01

3/4

Use Up/Down/Left/Right keys to select one of the four fields: Page Number, Volume, Delay Fine, Delay Adjust; the selected values can be changed by means of the dial.

When Outputs 5 and 6 are selected, only Page Number and Volume fields can be selected because

these outputs aren't provided with delay lines.

To access the following screen select page number and press Enter. Esc returns to precedent page.