Alto Drive-3.4 Users Manual

User's Manual

LTODRIVE3.4	3		WAY STEREO
	DIGITAL X				OVER

R

LTO

www.altoproaudio.com

Version 1.2 Januar y 2003

English

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 apparatus and 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.

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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

LTO AUDIO TEAM

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TABLE OF CONTENTS
1. INTRODUCTION ............................................................................................................	4
2. FEATURE LIST ..............................................................................................................	4
3. FRONT AND BACK PANELS DESCRIPTION.....................................................................	4

3.1The Front Panel

3.2The Rear Panel

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

5

4.1 Power Up and Audio Connections

a. Audio Connections

b. Power Up Setting

4.2Operational Overview

4.2.1UTILITY 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.OUT 1 / 2 / 3 / 4 / 5 / 6

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

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

5.2LTODRIVE3.4 2-Way Input, 6- Way Output (High, High, Low, Low Level)

6. MIDI STANDARD CONTROL..........................................................................................	14
7. TECHNICAL SPECIFICATIONS.....................................................................................	16
8. WARRANTY .................................................................................................................	18

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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 2432-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 2432-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 12864 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 4th 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

2432-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

8

6

5

3

2

	CL P
	6
	-12								LTODRIVE3.4
	-18	UP	ENTER	UT LITY	MUTE CH1	MUTE CH3	MUTE CH5
LTO									3 WAY S ereo
	-24							ON
	-30								Digi al X Over
	LEFT		RIGHT					OFF
		DOWN	ESC	ED T	MUTE CH2	MUTE CH4	MUTE CH6
								POWER

13

12

11 10

9

7

4

2

1

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

4

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

95-240V60-50Hz

Rated Power Consumption 15W

FUSE

210-240V T250mAL 250VAC

95-120V 500mA 250VAC REPLACE FUSE W TH CORRECT TYPE ONLY

Apparaten skall anslutas t ll jordat uttag nar den ansluts t ll ett natverk

						PUSH		PUSH
MIDI
MODEL						NEW	T DE	NEW	T DE
							3		3
						2	1	2	1
SER AL
OUTPUT6	OUTPUT5	OUTPUT4	OUTPUT3	OUTPUT2	OUTPUT1	INPUT2		INPUT1

17

16

15

14

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 from consumer to professional audio.

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 .

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 from 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.

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