Alto | X40 | User`s manual | Alto X40 User`s manual

User's Manual
X40
4-WAY STEREO
ACTIVE CROSSOVER
R
LTO
www.altoproaudio.com
Version 2.3 September 2005
English
Fuse
SAFETY RELATED SYMBOLS
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.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
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.
Protective Ground
Before turning the product ON, make sure that it is
connected to Ground. This is to prevent the risk of
electric shock.
This symbol, wherever used, alerts you to important operating and maintenance instructions.
Please read.
Never cut internal or external Ground wires. Likewise,
never remove Ground wiring from the Protective
Ground Terminal.
Protective Ground Terminal
Operating Conditions
AC mains (Alternating Current)
Always install in accordance with the manufacturer's
instructions.
Hazardous Live Terminal
ON:
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.
Denotes the product is turned on.
OFF: Denotes the product is turned off.
WARNING
Do not install this product near any direct heat source.
Describes precautions that should be observed to
prevent the possibility of death or injury to the user.
Do not block areas of ventilation. Failure to do so
could result in fire.
CAUTION
Keep product away from naked flames.
Describes precautions that should be observed to
prevent damage to the product.
IMPORTANT SAFETY INSTRUCTIONS
Read these instructions
Disposing of this product should not be
placed in municipal waste and should be
Separate collection.
Follow all instructions
Keep these instructions. Do not discard.
Heed all warnings.
WARNING
Only use attachments/accessories specified by the
manufacturer.
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.
Power Cord and Plug
Do not tamper with the power cord or plug. These are
designed for your safety.
Unplug the product before electrical storms occur
and when unused for long periods of time to reduce
the risk of electric shock or fire.
Do not remove Ground connections!
External Connection
Protect the power cord and plug from any physical
stress to avoid risk of electric shock.
If the plug does not fit your AC outlet seek advice from
a qualified electrician.
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 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 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.
Do not use any solvents such as Benzol or Alcohol.
For safety, keep product clean and free from dust.
Servicing
Covers should be removed by qualified service
personnel only.
No user serviceable parts inside.
Refer all servicing to qualified service personnel only.
Do not perform any servicing other than those instructions contained within the User's Manual.
1
Preface
Dear Customer:
Thanks for choosing
and researches.
LTO Active Crossover and thanks for choosing the one of results of
LTO AUDIO TEAM job
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
Centres in Italy, Netherlands, United Kingdom and Taiwan. The core of our digital audio products is a sophisticated
DSP (Digital sound processor) and a large range of state of the art algorithms which have been developed by our
Software Team for the last 7 years.
Because we are convinced you are the most important member of LTO AUDIO TEAM and the one confirming the
quality of our job, we'd like to share with you our work and our dreams, pay 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 LTO Active Crossover is the result of many hours of listening and tests involving common people, area experts,
musicians and technicians.
The results of this effort is an efficient and effective electronic crossover solution, which will give you precise control
and superior sound from your loudspeaker system.
Nothing else to add, but that we would like to thank all the people that made the LTO Active Crossover a reality
available to our customers, and thank our designers and all the LTO staff, there to make possible the realization of
products containing our idea of music and sound and there to support you, our customers, in the best way, conscious
that you are our best richness.
Thank you very much.
LTO AUDIO TEAM
2
TABLE OF CONTENTS
1. INTRODUCTION ..................................................................................................................................4
2. FEATURE LIST ....................................................................................................................................4
3. CONTROL ELEMENTS........................................................................................................................4
3.1 The Front Panel
3.2 The Rear Panel
4. INSTALLATION & CONNECTION .....................................................................................................7
4.1 Mains Connection .
4.2 Rack Mounting
4.3 Audio Connection
5. APPLICATION......................................................................................................................................9
6. TECHNICAL SPECIFICATIONS........................................................................................................10
7. WARRANTY .......................................................................................................................................11
3
1. INTRODUCTION
First we give our sincere appreciation for your confidence in LTO products by purchasing our X40 Active Crossover.
It is the most effective support to us. The X40 Active Crossover is an ideal crossover and used universally in most small
and large PA systems, recording studio monitors, DJ setups, commercial installations and live concerts. It is not only
adaptable in mounting to different sound systems, but also it has many developed features. For example, Clip LED
Indicators, Mute switches for all frequencies output, CD Horn and Phase Inversion.
The X40 Active Crossover is a single rack unit, dual channels electronic crossover, which is able to operate as the 4-way
stereo speaker systems.
2. FEATURE LIST
Single rack unit (1U)
Clip LED indicators
Mute switches used to mute the output signal of each frequency range
XLR balanced connectors for all inputs and outputs
Phase inversion compensates for corresponding frequencies cancellation in some field
CD boost compensates power loss during the long distance transmission
Superior-quality parts and rigid configuration for long life and full credibility
Excellent audio performance and low noise interference
3. CONTROL ELEMENTS
3.1 The Front Panel
CLIP2
CLIP1
SUB
LOW
MID
SUB
HIGH
LOW
MID
HIGH
CHANNEL 2
CHANNEL 1
0
0
50
80
190
0
0
350
1.7K
0
3K
0
0
50
80
190
0
0
350
1.7K
0
3K
X40
R
LTO
35
120
180
OFF
6
INPUT LEVEL
6
OFF
MUTE
2 3 4
30
250
FREQ
SUB LOW
SUB GAIN
5
6
35
1.1K
850
6
OFF
MUTE
7
100
1K
FREQ
LOW MID
LOW GAIN
8
120
6
OFF
MUTE
9
10
1K
9K
FREQ
MID HIGH
MID GAIN
11
12
1.1K
180
7K
OFF
6
MUTE
HIGH GAIN
13 14
6
OFF
INPUT LEVEL
OFF
6
MUTE
SUB GAIN
15 16 17 18
30
250
FREQ
SUB LOW
19
850
OFF
6
MUTE
LOW GAIN
100
1K
FREQ
LOW MID
20 21 22
ON
7K
OFF
6
MID GAIN
MUTE
1K
9K
OFF
FREQ
MID HIGH
6
OFF
MUTE
HIGH GAIN
23 24 25
POWER
26 27
1
X40 4-way stereo / active crossover
4-WAY STEREO MODE
1
Power Switch
15
Ch2 Input Level
2
Ch1 Input Level
16
Ch2 SUB, Ch2 LOW, Ch2 MID, Ch2 HIGH Clip LEDs
3
Ch1 SUB, Ch1 LOW, Ch1 MID, Ch1 HIGH Clip LEDs
17
Ch2 SUB Gain
4
Ch1 SUB Gain
18
Ch2 SUB Mute
5
Ch1 SUB Mute
19
Ch2 SUB-LOW Crossover Frequency
6
Ch1 SUB-LOW Crossover Frequency
20
Ch2 LOW Gain
7
Ch1 LOW Gain
21
Ch2 LOW Mute
8
Ch1 LOW Mute
22
Ch2 LOW-MID Crossover Frequency
9
Ch1 LOW-MID Crossover Frequency
23
Ch2 MID Gain
10
Ch1 MID Gain
24
Ch2 MID Mute
11
Ch1 MID Mute
25
Ch2 MID-HIGH Crossover Frequency
12
Ch1 MID-HIGH Crossover Frequency
26
Ch2 HIGH Gain
13
Ch1 HIGH Gain
27
Ch2 HIGH Mute
14
Ch1 HIGH Mute
4
4-WAY STEREO
ACTIVE CROSSOVER
Power switch
Turn the power on or off.
Clip LED
It means that some band has resulted in clipping distortion when the LED is glittering. It is regarded as normal
if it is glittering only one or two times. But if it lasts for a long time, you should turn down the level control or
reduce the input signal to avoid audio distortion.
Mute switch
These buttons are used to mute each kind of frequency output.
3.2 The Rear Panel
28
PUSH
AC INPUT
PUSH
110-120V
95-120V /210-240V 60-50Hz
Rated Power Consumption 10W
220-240V
FUSE:
NEW
210-240V: T100mAL 250VAC
95-120V: 200mA 250VAC
REPLACE FUSE WITH CORRECT
TYPE ONLY
Apparaten skall anslutas till
jordat uttag nar den ansluts
till ett natverk
A101
HIGH
PHASE
HIGH OUT2
LOW
PHASE
MID
PHASE
MID OUT2
LOW OUT2
CD
BOOST
TIDE
1
INPUT 2
SUB OUT2
NEW
HIGH OUT1
MID OUT1
47
CD
BOOST
LOW
PHASE
LOW OUT1
SUB OUT1
TIDE
3
2
1
INPUT 1
CHANNEL 1
CHANNEL 2
29
MID
PHASE
HIGH
PHASE
3
2
46 45 44 43 42 41 40 39
38 37 36 35 34 33 32 31 30
X40 4-way stereo active crossover
4-WAY STEREO MODE
28
Fuse Holder
38
Ch1 HIGH Output
29
AC Inlet
39
Ch2 Line Input
30
Ch1 Line Input
40
Ch2 Constant Directivity Boost
31
Ch1 Constant Directivity Boost
41
Ch2 SUB Output
32
Ch1SUB Output
42
Ch2 LOW Phase Inversion
33
Ch1 LOW Phase Inversion
43
Ch2 LOW Output
34
Ch1 LOW Output
44
Ch2 MID Phase Inversion
35
Ch1 MID Phase Inversion
45
Ch2 MID Output
36
Ch1 MID Output
46
Ch2 HIGH Phase Inversion
37
Ch1 HIGH Phase Inversion
47
Ch2 HIGH Output
Fuse Holder & AC Inlet
Your unit may have the AC voltage selector ( 115V/60Hz or
pull fuse-holder out and rotate 180 , then push in again.
230V/50Hz) built into the Fuse Holder. To change,
Caution: The fuse protecting the AC supplies circuits of this unit. The fuse can only be changed by a qualified
technician, in the event of a fault or changing the supply voltage. If the fuse continues to blow after replacing,
discontinue use of this unit before repaired.
5
110-120V
220-240V
220-240V
110-120V
THIS IS SET FOR
110V AC TO 120V
AC OPERATION
THIS IS SET FOR
220V AC TO 240V
AC OPERATION
The fuse-holder above the AC connector on the rear of the chassis has 3 triangular markers (please refer to the
above pictures), with two of these triangles opposing each other, your unit is set to the operating Voltage printed
next to these markers.
Inputs & Outputs
The inputs and outputs are all floating and balanced when they are linked to other floating and balanced equipment.
Each kind of combination of balanced and unbalanced operation is acceptable.
CD Boost
Abbreviation for 'Constant Directivity Boost', this button can be used to boost the high frequencies by +3dB at
3.5kHz, then +6dB per octave till 22.5kHz.
Through this function and using with the horns, power loss of the high frequencies can be compensated for
during the long distance transmission in the large PA reinforcement systems.
Phase Inversion
These buttons will reverse the phase of the corresponding frequencies output by 180 , so that, the frequencies
cancellation in some fields can be compensated for.
6
4. INSTALLATION & CONNECTION
4.1 Mains Connection
Please ensure that the LTO X40 Active Crossover is set to the correct supply voltage before plugging the
power cord into the wall outlet, use the same fuse as marked on the fuse holder at the AC power connection
socket. The mains connection of the LTO X40 Active Crossover is made by using the enclosed mains cable
and a standard IEC receptacle. It meets all of the international safety certification requirements.
4.2 Rack Mounting
The most secure mounting is on a universal rack shelf available from various rack manufactures or your music
dealer. The X40 Active Crossover fits into one standard 19" rack unit of space. Please allow at least an additional
4" depth for the connectors on the rear panel. Be sure that there is enough air space around the unit for sufficient
ventilation and please do not place the X40 Active Crossover on high temperature devices such as power amplifiers
etc. to avoid overheating.
4.3 Audio Connection
The LTO X40 Active Crossover presents with balanced XLR connectors, and it can be interfaced by several
ways to support a variety of applications without any signal loss.
a. Wiring Configuration
Either the 1/4" TRS (Tip-Ring-Sleeve) jack or the XLR servo connector can be wired in balanced and unbalanced
modes. Please wire your systems as the following examples:
For 1/4" Phone jack
+
+
-
Tip
+
Tip
Ring
Tip
Ring
Sleeve
Sleeve
TS Type Unbalanced
Sleeve
TRS Type Balanced
TRS Type Unbalanced
For XLR connector
Pin2 (+)
Pin3 (-)
(Linked to Pin1 manually,
Pin2 (+)
Pin3 (-)
)
Pin1 ( )
Pin1 ( )
XLR Type Unbalanced
XLR Type Balanced
7
b. In Line Connection
For these applications, the X40 Active Crossover provides XLR connectors to easily interface with most professional
audio devices. Follow the configuration examples below for your particular connection.
Balanced
3
3
1
1
2
2
1
3
2
TIP RING SLEEVE
1
2
1
2
3
3
Tip
Ring
1
2
3
Sleeve
Unbalanced
1
Tip
Ring
3
2
Sleeve
TIP RING SLEEVE
Tip
1
3
2
Sleeve
1
2
3
1
2
3
2
3
1
TIP SLEEVE
2
2
3
3
1
1
1
2
3
Cent r e
1
2
1
2
3
3
8
Screen
5. APPLICATION
To get such a typical application, configure your system and connect the wires in the following proper steps:
1. Apply the stereo program sources from the Mixer to the Input Connectors of Channel1 and Channel2..
2. Output the Sub frequencies signal to the power amplifier.
3. Output the Low frequencies signal to the power amplifier.
4. Output the Mid frequencies signal to the power amplifier.
5. Output the High frequencies signal to the power amplifier.
6. Power up the X40 first, then the power amplifier to run the system. While powered off, please ensure the power amplifier
is turned off first, then the X40.
HIGH
HIGH
MID
MID
LOW
LOW
SUB
SUB
PUSH
AC INPUT
PUSH
110-120V
95-120V /210-240V 60-50Hz
Rated Power Consumption 10W
220-240V
FUSE:
NEW
210-240V: T100mAL 250VAC
95-120V: 200mA 250VAC
REPLACE FUSE WITH CORRECT
TYPE ONLY
A101
Apparaten skall anslutas till
jordat uttag nar den ansluts
till ett natverk
HIGH
PHASE
HIGH OUT2
LOW
PHASE
MID
PHASE
MID OUT2
LOW OUT2
CD
BOOST
SUB OUT2
TIDE
NEW
3
2
1
INPUT 2
MID
PHASE
HIGH
PHASE
HIGH OUT1
MID OUT1
LOW OUT1
CHANNEL 1
CHANNEL 2
9
CD
BOOST
LOW
PHASE
SUB OUT1
TIDE
3
2
1
INPUT 1
6. TECHNICAL SPECIFICATIONS
Electrical
SUB-LOW Frequency Range
30Hz-250Hz
LOW-MID Frequency Range
100Hz-1KHz
MID-HIGH Frequency Range
1KHz-9KHz
Av=0dB, fc=46, 200, 1K, 5KHz
HUM & Noise
SUB Section (Output@ 0db)
-95dBu
LOW Section (Output@0dB)
MID Section (Output@0dB)
-94dBu
-94dBu
HIGH Section (Output@0dB)
S/N Ratio
-92dBu
114dB
Input Level
continuously variable
Output Level
CD Boost
Sub, Low, Mid, High continuously variable
rear panel switch
Mute
Phase
Sub, Low, Mid, High front panel switches
rear panel switch
Connector type
3-pole IEC, grounded
Type
Servo controlled , stabilized
Mains supply
Power Rating
95-120V
Dimensions
483(W) 194.5(D) 44(H)mm (19" 7.7" 1.7")
Weight
3.1Kg(6.84lb)
Controls
Power Supply
/210-240V
, 60-50Hz
10 W
Physical
10
7. WARRANTY
1. WARRANTY REGISTRATION CARD
To obtain Warranty Service, the buyer should first fill out and return the enclosed Warranty Registration Card within
10 days of the Purchase Date.
All the information presented in this Warranty Registration Card gives the manufacturer a better understanding of
the sales status, so as to purport a more effective and efficient after-sales warranty service.
Please fill out all the information carefully and genuinely, miswriting or absence of this card will void your warranty
service.
2. RETURN NOTICE
2.1 In case of return for any warranty service, please make sure that the product is well packed in its original shipping
carton, and it can protect your unit from any other extra damage.
2.2 Please provide a copy of your sales receipt or other proof of purchase with the returned machine, and give detail
information about your return address and contact telephone number.
2.3 A brief description of the defect will be appreciated.
2.4 Please prepay all the costs involved in the return shipping, handling and insurance.
3. TERMS AND CONDITIONS
3.1
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.
11
SEIKAKU TECHNICAL GROUP LIMITED
No. 1, Lane 17, Sec. 2, Han Shi West Road, Taichung 40151 Taiwan
http://www.altoproaudio.com Tel: 886-4-22313737
email: alto@altoproaudio.com 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 c 2005 SEIKAKU GROUP
NF 00923-2.3
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