Nilfisk ALTO Stereo System DIGITAL X OVER User Manual

User's Manual  
3 WAY STEREO  
DIGITAL X OVER  
LTODRIVE3.4  
R
Version 1.2 January 2003  
English  
 
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  
2
 
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. OUT 1 / 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  
3
 
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 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  
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  
8
6
5
3
2
CLIP  
-6  
-12  
-18  
-24  
-30  
UP  
LTODRIVE3.4  
UTILITY  
EDIT  
MUTE CH1  
MUTE CH2  
MUTE CH3  
MUTE CH4  
MUTE CH5  
MUTE CH6  
ENTER  
ESC  
R
3-WAY Stereo  
Digital X-Over  
ON  
OFF  
LEFT  
RIGHT  
DOWN  
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  
PUSH  
PUSH  
MIDI  
AC INPUT  
95-240V 60-50Hz  
Rated Power Consumption 15W  
NEW TIDE  
3
NEW TIDE  
3
FUSE:  
210-240V: T250mAL 250VAC  
95-120V: 500mA 250VAC  
REPLACE FUSE WITH CORRECT  
TYPE ONLY  
MODEL  
2
1
2
1
Apparaten skall anslutas till  
jordat uttag nar den ansluts  
till ett natverk  
SERIAL  
OUTPUT  
THRU  
INPUT  
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.  
5
 
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  
VU-M  
STORE  
PASSW  
MIDI  
UNLOCK  
PRESET 01  
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  
PRESET  
LOAD  
PRESET  
01  
Name:  
Num:  
Name:  
Num:  
01  
1 / 1  
1 / 1  
PRESET 01  
PRESET 01  
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:  
EMPTY  
02  
1 / 1  
PRESET 01  
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.  
6
 
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  
02  
1 / 1  
PRESET 01  
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.  
01  
OFF  
1 / 1  
PRESET 01  
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  
MIDI  
CHANNEL  
01  
01  
OUT EN.  
OFF  
OUT EN.  
OFF  
1 / 1  
1 / 1  
PRESET 01  
PRESET 01  
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  
-30  
1
2
3
4
5
6
OUT VOL  
PRESET 01  
1 / 2  
Enter accesses the next page, Esc gets back to the precedent.  
7
 
1
2
3
4
5
6
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  
0 0 0 0 0 0  
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  
0 0 0 0 0 0  
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  
Is 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  
VU-M  
STORE  
PASSW  
MIDI  
LOCK  
PRESET 01  
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  
IN L  
OUT 1 OUT 4  
OUT 2 OUT 5  
OUT 3 OUT 6  
IN R  
PRESET 01  
8
 
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  
1
2
L
IN  
O
U
T
3
4
5
6
R
PRESET 01  
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  
ROUTING  
ROUTING  
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
L
IN  
R
O
U
T
L
IN  
R
O
U
T
L
IN  
R
O
U
T
PRESET 01  
PRESET 01  
PRESET 01  
1 / 1  
1 / 1  
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  
1
2
L
IN  
O
U
T
3
4
5
6
R
PRESET 01  
1 / 1  
To get back to the main menu, select 1/1 and press the Esc key.  
b. IN L / IN R  
Here input channels can be configured:  
PEQ 01  
F: 20  
PEQ 01  
F: 20  
G: 00.0  
B: 0.15  
G: 00.0  
B: 0.15  
PRESET 01 IL  
PRESET 01 IL  
1 / 2  
1 / 2  
PEQ 01  
F: 20  
PEQ 01  
F: 20  
G: 00.0  
B: 0.15  
G: 00.0  
B: 0.15  
PRESET 01 IL  
PRESET 01 IL  
1 / 2  
1 / 2  
9
 
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  
DLY. F  
VOL.  
000 ms  
0000 us  
0.00 dB  
DLY. A  
DLY. F  
VOL.  
000 ms  
0000 us  
0.00 dB  
PRESET 01 IL  
PRESET 01 IL  
2 / 2  
2 / 2  
DLY. A  
DLY. F  
VOL.  
000 ms  
0000 us  
0.00 dB  
DLY. A  
DLY. F  
VOL.  
000 ms  
0000 us  
0.00 dB  
PRESET 01 IL  
PRESET 01 IL  
2 / 2  
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. OUT 1 / 2 / 3 / 4 / 5 / 6  
Here output channels can be configured:  
EDIT PARAMETRIC FILTERS (page 1 of 4)  
PEQ 01  
F: 20  
PEQ 01  
F: 20  
G: 00.0  
B: 0.15  
G: 00.0  
B: 0.15  
PRESET 01 O1  
PRESET 01 O1  
1 / 4  
1 / 4  
PEQ 01  
F: 20  
PEQ 01  
F: 20  
G: 00.0  
B: 0.15  
G: 00.0  
B: 0.15  
PRESET 01 O1  
PRESET 01 O1  
1 / 4  
1 / 4  
PEQ 01  
F: 20  
G: 00.0  
B: 0.15  
PRESET 01 O1  
1 / 4  
10  
 
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  
LF:20K0  
ORD: 0  
ORD: 0  
HF: 21  
LF:20K0  
ORD: 0  
ORD: 0  
PRESET 01 O1  
PRESET 01 O1  
2 / 4  
2 / 4  
HF: 21  
LF:20K0  
ORD: 0  
ORD: 0  
HF: 21  
LF:20K0  
ORD: 0  
ORD: 0  
PRESET 01 O1  
PRESET 01 O1  
2 / 4  
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.  
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 precedent page.  
EDIT PARAMETERS  
DLY. A  
DLY. F  
VOL.  
000 ms  
0000 us  
0.00 dB  
DLY. A  
DLY. F  
VOL.  
000 ms  
0000 us  
0.00 dB  
PRESET 01 O1  
PRESET 01 O1  
3 / 4  
3 / 4  
DLY. A  
DLY. F  
VOL.  
000 ms  
0000 us  
0.00 dB  
DLY. A  
DLY. F  
VOL.  
000 ms  
0000 us  
0.00 dB  
PRESET 01 01  
PRESET 01 01  
3 / 4  
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.  
11  
 
POL.  
THR.  
REL.  
ATK.  
DIR  
00 dB  
0.4 S  
POL.  
THR.  
REL.  
ATK.  
DIR  
00 dB  
0.4 S  
0.05 S  
0.05 S  
PRESET 01 O1  
PRESET 01 O1  
4 / 4  
4 / 4  
4 / 4  
4 / 4  
POL.  
DIR  
POL.  
DIR  
THR.  
REL.  
ATK.  
00 dB  
0.4 S  
THR.  
REL.  
ATK.  
00 dB  
0.4 S  
0.05 S  
0.05 S  
PRESET 01 O1  
PRESET 01 O1  
4 / 4  
POL.  
DIR  
THR.  
REL.  
ATK.  
00 dB  
0.4 S  
0.05 S  
PRESET 01 O1  
Use Up/Down/Left/Right keys to select one of the five fields: Page Number, Polarity, Limiter Threshold,  
Limiter Release, Limiter Attack; the selected values can be changed by means of the dial.  
To access the precedent page select page number and press Esc.  
When the current preset has been edited, it is necessary to save this preset by means of the STORE  
function, otherwise whatever preset loading or power cycle of the system will overwrite and erase  
Completely the edited data.  
Up/Down/Right/Left key: These keys are used to navigate the menus and to modify the parameter values.  
Enter/Esc key: These keys are used to access or to leave the menus, or to confirm the parameter values.  
Edit key: This key allows the user to enter the edit menu (the related LED will light)  
When entered the edit menu, the user will be able to access and modify all the parameters related to the  
process, when the user modifies one parameter value, the LED starts to blink to signal the update. The  
LED will blink until the storing of the new modified preset in one of the 64 available locations.  
Vu-meter: This function allows the user to use the vu-meter to show the input signal level.  
Mute keys: LTODRIVE3.4 has 6 mute keys.(each channel has one mute key).  
Press the mute key, the related channel is muted.  
5.APPLICATION ILLUSTRATION  
5.1 LTODRIVE 3.4 2-Way Input, 6- Way Output (High, Mid, Low, High, Mid, Low)  
If you want to present your LTODRIVE 3.4 in a 2-way input, 6-way output (high, mid, low, high, mid,  
low level) application, please connect your system as the following illustration step by step:  
1.Set the input /output path as the following connection:  
ROUTING  
1
2
L
O
U
T
3
4
5
6
IN  
R
PRESET 01  
1 / 1  
2.Plug the left line-in into INPUT1 and the right line-in into INPUT2  
3.Set OUTPUT1, OUTPUT2, OUTPUT3, OUTPUT4, OUTPUT5,OUTPUT6 as high, mid, low, high, mid, low  
frequency band OUT separately.  
4.Connect the OUTPUT1,OUTPUT4 to the high frequency amplifier, OUTPUT2,OUTPUT5 to the mid frequency  
amplifier, OUTPUT3,OUTPUT6 to the low frequency amplifier.  
12  
 
LOW AMP  
MID AMP  
HIGH AMP  
PUSH  
PUSH  
MIDI  
AC INPUT  
95-240V~60-50Hz  
Rated Power Consumption 15W  
NEW TIDE  
3
NEW TIDE  
3
FUSE:  
MODEL  
SERIAL  
210-240V: T250mAL 250VAC  
95-120V: 500mA 250VAC  
REPLACE FUSE WITH CORRECT  
2
1
2
1
TYPE ONL  
Y
Apparaten skall anslutas till  
jordat uttag nar den ansluts  
till ett natverk  
OUTPUT  
THRU  
INPUT  
OUTPUT6  
OUTPUT5  
OUTPUT4  
OUTPUT3  
OUTPUT2  
OUTPUT1  
INPUT2  
INPUT1  
5.2. LTODRIVE3.4 2-Way Input, 6- Way Output (High, High, Low, Low, Sub, Sub Level)  
If you want to present your LTODRIVE3.4 in a 2-way input, 6-way output (high, high, low, low, sub, sub level)  
application, please connect the unit to your system as the following illustration step by step:  
1.Set the input /output path as the following connection:  
ROUTING  
1
2
L
O
U
T
3
4
5
6
IN  
R
PRESET 01  
1 / 1  
2.Plug the left line-in into INPUT1and the right line-in into INPUT2.  
3.Set the OUTPUT1, OUTPUT2, OUTPUT3, OUTPUT4,OUTPUT5, OUTPUT6 as high, high, low, low,  
sub, sub frequency band OUT separately.  
4.Connect the OUTPUT1, OUTPUT2 to the high frequency amplifier,OUTPUT3, OUTPUT4 to the low frequency  
amplifier, OUTPUT5, OUTPUT6 to the low frequency amplifier.  
SUB AMP  
LOW AMP  
HIGH AMP  
PUSH  
PUSH  
MIDI  
AC INPUT  
95-240V~60-50Hz  
Rated Power Consumption 15W  
NEW TIDE  
3
NEW TIDE  
3
FUSE:  
MODEL  
SERIAL  
210-240V: T250mAL 250VAC  
95-120V: 500mA 250VAC  
REPLACE FUSE WITH CORRECT  
2
1
2
1
TYPE ONL  
Y
Apparaten skall anslutas till  
jordat uttag nar den ansluts  
till ett natverk  
OUTPUT  
THRU  
INPUT  
OUTPUT6  
OUTPUT5  
OUTPUT4  
OUTPUT3  
OUTPUT2  
OUTPUT1  
INPUT2  
INPUT1  
13  
 
6. APPENDIX  
AltoDrive3.4 Midi standard control  
PROGRAM CHANGE  
Parameter  
Value  
0
Legend  
Preset 01  
Preset Factory  
Preset User  
Preset 02 to preset 64  
1, 2, 3,......, 64  
CONTROL CHANGE  
Parameter  
Bank  
Controller  
Value  
setting  
Legend  
0
0, 1, 2  
Mode Channel  
Mode Channel  
Output Volume  
High Pass Filter  
High Pass Filter  
Low Pass Filter  
Low Pass Filter  
Delay Line Adj  
Delay Line Fine  
Limiter Threshold  
Limiter Release  
Limiter Attack  
Polarity  
22  
0, 1  
Input Left, Input Right  
22  
2, 3, 4, 5, 6, 7 Output 1, 2, 3, 4, 5, 6  
0,..., 48 Select Mode Channel  
7
12 / 12 dB  
17  
0,..., 120 Mode Channel = 2, 3, 4, 5, 6, 7 Bank=0 HP Frequency  
0, 1, 2, 3, 4 Mode Channel = 2, 3, 4, 5, 6, 7 Bank=1 HP Order  
0,..., 120 Mode Channel = 2, 3, 4, 5, 6, 7 Bank=0 LP Frequency  
0, 1, 2, 3, 4 Mode Channel = 2, 3, 4, 5, 6, 7 Bank=1 LP Order  
0,..., 127 Mode Channel = 0, 1, 2, 3, 4, 5 Bank=0 508 ms step 4ms  
17  
18  
18  
19  
19  
0,..., 95  
0,..., 29  
0,..., 3  
0,..., 3  
0
Mode Channel = 0, 1, 2, 3, 4, 5 Bank=1 1995 us step 21us  
Mode Channel = 2, 3, 4, 5, 6, 7 Bank=0 29, ..., 0dB  
20  
20  
20  
Mode Channel = 2, 3, 4, 5, 6, 7 Bank=1 0.4s, 0.5s, 0.7s, 1.4s  
Mode Channel = 2, 3, 4, 5, 6, 7 Bank=2 0.05s, 0.1s, 0.2s, 0.3s  
21  
Mode Channel = 2, 3, 4, 5, 6, 7  
Mode Channel = 2, 3, 4, 5, 6, 7  
Direct  
Invers  
Polarity  
21  
1
Filer 01, 02,..., 04  
Filer 01, 02,..., 04  
Filer 01, 02,..., 04  
12, 13, 14, 15  
12, 13, 14, 15  
12, 13, 14, 15  
0,..., 120 Only Mode Channel = 0, 1 (in L, R) Frequency; Bank=0  
0,..., 60 Only Mode Channel = 0, 1 (in L, R) Amplitude; Bank=1  
0,..., 59 Only Mode Channel = 0, 1 (in L, R) Band Width; Bank=2  
Filer 01, 02,..., 05  
Filer 01, 02,..., 05  
Filer 01, 02,..., 05  
Mute  
12, 13, 14, 15, 16 0,..., 120 Only Mode Channel = 2, 3, 4, 5, 6, 7 Frequency; Bank=0  
12, 13, 14, 15, 16  
0,..., 60 Only Mode Channel = 2, 3, 4, 5, 6, 7 Amplitude; Bank=1  
0,..., 59 Only Mode Channel = 2, 3, 4, 5, 6, 7 Band Width; Bank=2  
12, 13, 14, 15, 16  
23  
23  
23  
23  
23  
23  
24  
25  
26  
27  
28  
29  
0, 1  
0, 1  
0, 1  
0, 1  
0, 1  
0, 1  
0, 1  
0, 1  
0, 1  
0, 1  
0, 1  
0, 1  
Output 1 Mute OFF, ON  
Output 2 Mute OFF, ON  
Output 3 Mute OFF, ON  
Output 4 Mute OFF, ON  
Output 6 Mute OFF, ON  
Output 5 Mute OFF, ON  
ModeCh=2  
ModeCh=3  
ModeCh=4  
ModeCh=5  
ModeCh=6  
ModeCh=7  
Mute  
Mute  
Mute  
Mute  
Mute  
Routing  
Connect Off/On InputL/R to Output1 Bank= 0 / Bank=1  
Connect Off/On InputL/R to Output2 Bank= 0 / Bank=1  
Connect Off/On InputL/R to Output3 Bank= 0 / Bank=1  
Connect Off/On InputL/R to Output4 Bank= 0 / Bank=1  
Connect Off/On InputL/R to Output5 Bank= 0 / Bank=1  
Connect Off/On InputL/R to Output6 Bank= 0 / Bank=1  
Routing  
Routing  
Routing  
Routing  
Routing  
Note:  
Select the channel to edit by means of the controller 22 (Mode channel).  
Warnings:  
1. Before starting a MIDI session please set on the ALTODRIVE3.4 the same MIDI channel used by the  
external controller.  
2. During a MIDI control session the unit's graphic display is NOT updated.  
14  
 
3. After MIDI use of ALTODRIVE3.4 it's advisable to run a manual STORE to save preset changes done by  
means of the external controller. After saving, reboot the ALTODRIVE3.4 to use it as a stand-along unit.  
4. When setting and resetting mutes (controller 23) by MIDI, the relative LEDs are NOT actived.  
MIDI Controllers Values  
Amplitude 15dB / 15dB step 0.5dB  
(Value = d u)  
d \ u  
0
0
1
2
3
4
5
6
7
8
9
15.0dB 14.5dB 14.0dB 13.5dB 13.0dB 12.5dB 12.0dB 11.5dB  
10.0dB 09.5dB 09.0dB 08.5dB 08.0dB 07.5dB 07.0dB 06.5dB 06.0dB 05.5dB  
05.0dB 04.5dB 04.0dB 03.5dB 03.0dB 02.5dB 2.0dB 1.5dB 1.0dB 00.5dB  
11.0dB 10.5dB  
10  
20  
30  
40  
50  
60  
00.0dB 00.5dB 01.0dB 01.5dB 02.0dB 02.5dB 03.0dB 03.5dB 04.0dB 04.5dB  
05.0dB 05.5dB 06.0dB 06.5dB 07.0dB 07.5dB 08.0dB 08.5dB 09.0dB 09.5dB  
10.0dB 10.5dB 11.0dB 11.5dB 12.0dB 12.5dB 13.0dB 13.5dB 14.0dB 14.5dB  
15.0dB  
Frequency 20Hz - 20KHz step 1/12 oct  
(Value = d u)  
d \ u  
0
0
1
2
3
4
5
6
7
8
9
20  
21,2  
37,9  
67  
22,5  
40  
23,7  
42,5  
76  
25  
26,6  
47,5  
85  
28,3  
50  
29,9  
53,5  
95  
31,5  
57  
33,6  
10  
35,8  
63  
45  
80  
59,5  
20  
71,5  
125  
90  
100  
106,5  
190  
30  
113  
119  
134  
143  
151,5  
266,5  
475  
160  
170  
180  
40  
200  
212,5  
379  
225  
237,5  
425  
250  
283  
299  
315  
336,5  
597,5  
1062  
1900  
3362  
5975  
10625  
19000  
50  
358  
400  
450  
500  
532,5  
950  
565  
60  
630  
672,5  
1187  
2125  
3787  
6725  
11875  
715  
757,5  
1337  
2375  
4250  
7575  
13375  
800  
850  
900  
1000  
1800  
3150  
5650  
10000  
18000  
70  
1125  
2000  
3575  
6300  
11250  
20000  
1250  
2250  
4000  
7150  
12500  
1425  
2500  
4500  
8000  
14250  
1512  
2662  
4750  
8500  
15125  
1600  
2825  
5000  
9000  
16000  
1700  
2987  
5325  
9500  
17000  
80  
90  
100  
110  
120  
Bandwidth 0.05 oct - 3 oct step 0.05 oct  
(Value = d u)  
d \ u  
0
0
1
2
3
4
5
6
7
8
9
0,05  
0,1  
0,15  
0,2  
0,7  
1,2  
1,7  
2,2  
2,7  
0,25  
0,3  
0,8  
1,3  
1,8  
2,3  
2,8  
0,35  
0,4  
0,45  
0,5  
10  
20  
30  
40  
50  
0,55  
1,05  
1,55  
2,05  
2,55  
0,6  
1,1  
1,6  
2,1  
2,6  
0,65  
1,15  
1,65  
2,15  
2,65  
0,75  
1,25  
1,75  
2,25  
2,75  
0,85  
1,35  
1,85  
2,35  
2,85  
0,9  
1,4  
1,9  
2,4  
2,9  
0,95  
1,45  
1,95  
2,45  
2,95  
1
1,5  
2
2,5  
3
Output Volume 12dB / 12dB step 0.5dB  
(Value = d u)  
d \ u  
0
0
1
2
3
4
5
6
7
8
9
12.0dB 11.5dB 11.0dB 10.5dB 10.0dB 09.5dB 09.0dB 08.5dB 08.0dB 07.5dB  
07.0dB 06.5dB 06.0dB 05.5dB 05.0dB 04.5dB 04.0dB 03.5dB 03.0dB 02.5dB  
10  
20  
30  
40  
2.0dB  
1.5dB  
1.0dB  
00.5dB 00.0dB 00.5dB 01.0dB 01.5dB 02.0dB 02.5dB  
03.0dB 03.5dB 04.0dB 04.5dB 05.0dB 05.5dB 06.0dB 06.5dB 07.0dB 07.5dB  
08.0dB 08.5dB 09.0dB 09.5dB 10.0dB 10.5dB 11.0dB 11.5dB  
12.0dB  
15  
 
7.TECHNICAL SPECIFICATIONS  
Input Channel  
Digital Input Gain  
/+ 12 dB / step 0.5 dB  
Gain /+ 15 dB / step 0.5 dB  
4 Parametric Filters  
Freq 20 Hz 20 KHz step 1/12 oct  
BandWidth 0.05 oct 3 oct / step 0.05 oct  
Delay line  
Up to 512 ms minimum step 21us  
Output Channel  
Digital Out Volume  
Delay line  
/+ 12 dB / step 0.5 dB  
Up to 512 ms minimum step 21us  
Gain /+ 15 dB / step 0.5dB  
5 Parametric Filters  
Freq 20 Hz - 20 KHz / step 1/12 oct  
BandWidth 0.05 oct - 3 oct step 0.05 oct  
High Pass filter type Butterworth  
Low Pass filter type Butterworth  
Freq: 20 Hz - 20 KHz / step 1/12 oct  
Slope: Bypass, 1st ord,2ndord, 3rd ord, 4th ord  
Freq:20 Hz - 20 KHz / step 1/12 oct  
Slope: Bypass, 1st ord,2ndord, 3rd ord, 4th ord  
Polarity  
Limiter  
Phase 0 or 180  
Threshold 29 dB up to 0 dB / step 1dB  
Release Time 0.4 s, 0.5 s, 0.7 s, 1.4 s  
Attack Time 0.05 s, 0.10 s, 0.20 s, 0.30 s  
The Whole Unit  
Memory  
1 Factory Preset  
64 User Preset  
Analog  
Inputs  
2 XLR - F (BAL)  
6 XLR - M (BAL)  
Outputs  
Input Impedance  
Output Impedance  
>40k  
<200  
12dBv  
Input MAX Level  
Output MAX Level  
A/D Converter  
12dBv  
20BITS Sigma-Delta  
24BITS Sigma-Delta  
D/A Converter  
Performance  
THD+N  
0.02 (1KHz 3dBFS)  
20Hz 20KHz  
Amplitude  
S/N Ratio  
>97dBa  
Digital  
Processor speed  
DSP resolution  
Control  
36 MIPs  
24 32 bits  
Microprocessor  
MIDI section  
Input/output/thru  
Connections  
Sockets  
Mode  
5
poles DIN(female)  
Photocoupled  
16  
 
Power Supply  
Connector type  
Type  
3
poles DIN (female)  
Servo controlled, Switching  
210 240V: T250mAL 250VAC  
95 120V: 500mAL 250VAC  
fuse  
AC Input  
95 240V~60 50Hz  
15W  
rated power consumption  
User Interface  
Graphic display  
Keyboard  
128 64 dots  
14 user keys/ 8LEDs  
2
6 LEDs  
Vu meter  
Physical  
Size  
Standard 19"rack Mounting  
483(W) 232.5(D) 44(H)mm(19" 9.3" 1.7")  
Dimensions  
weight  
3.5Kg(7.72lb)  
17  
 
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 under-  
standing 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 LTO warrants that this product will be free from any defects in materials and/or workmanship for  
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, LTO may repair or replace this product at its own option at no charge to  
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 LTO be liable for any incidental or consequential damages. Some states do not allow  
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.  
18  
 
SEKAKU ELECTRON IND. CO., LTD  
NO.1, LANE 17, SEC. 2, HAN SHI WEST ROAD, TAICHUNG, 401 TAIWAN  
Tel:886-4-22313737  
email: [email protected] Fax:886-4-22346757  
All rights reserved to ALTO. All features and content might be changed  
without prior notice. Any photocopy, translation, or reproduction of part of this  
manual without written permission is forbidden. Copyright 2003 Sekaku Electron  
 

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