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1. INTRODUCTION

2. FEATURE LIST

3. CONTROL ELEMENTS

3.1 The Front Panel

4

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.

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

2

3 4

5

6

7

8

9

11

10

12

13 14

16

15

17 18

19

20

25

26 27

23 24

22

21

1

R

LTO

ON

OFF

1K

0

0

MUTE

MUTE

MUTE

MUTE

9K

250

OFF

OFF

6

HIGH GAIN

MID GAIN

LOW GAIN

SUB GAIN

INPUT LEVEL

FREQ

MID

HIGH

FREQ

LOW

MID

FREQ

SUB

LOW

SUB

HIGH

LOW

MID

3K

1K

1.7K

1.1K

7K

850

350

100

190

120

180

80

30

50

35

1K

MUTE

MUTE

MUTE

MUTE

9K

250

HIGH GAIN

MID GAIN

LOW GAIN

SUB GAIN

INPUT LEVEL

FREQ

MID

HIGH

FREQ

LOW

MID

FREQ

SUB

LOW

SUB

HIGH

LOW

MID

3K

1K

1.7K

1.1K

7K

850

350

100

190

120

180

80

30

50

35

CHANNEL 2

CLIP2

4-WAY STEREO

ACTIVE CROSSOVER

X40

CLIP1

CHANNEL 1

6

0

OFF

6

0

OFF

6

0

OFF

6

0

OFF

6

0

OFF

6

0

OFF

6

0

OFF

6

0

OFF

6

POWER

20

21

22

23

24

25

26

27

15

16

17

18

X40

4-way stereo / active crossover

Ch1 LOW Gain

Ch1 LOW Mute

Ch1 LOW-MID Crossover Frequency

Ch1 SUB-LOW Crossover Frequency

Ch1 MID Mute

Ch1 MID-HIGH Crossover Frequency

Ch1 MID Gain

Ch1 HIGH Gain

Ch1 HIGH Mute

Power Switch

Ch1 Input Level

Ch1 SUB Gain

Ch1 SUB Mute

Ch1 SUB, Ch1 LOW, Ch1 MID, Ch1 HIGH Clip LEDs

4-WAY

MODE

STEREO

Ch2 LOW-MID Crossover Frequency

Ch2 MID-HIGH Crossover Frequency

Ch2 LOW Gain

Ch2 LOW Mute

Ch2 MID Gain

Ch2 MID Mute

Ch2 HIGH Gain

Ch2 HIGH Mute

Ch2 Input Level

Ch2 SUB-LOW Crossover Frequency

Ch2 SUB, Ch2 LOW, Ch2 MID, Ch2 HIGH Clip LEDs

Ch2 SUB Gain

Ch2 SUB Mute

6

7

8

9

10

11

12

13

14

1

2

3

4

5

19

Summary of Contents for X40

Page 1: ...User s Manual 4 WAY STEREO ACTIVE CROSSOVER X40 LTO R www altoproaudio com Version 2 0 Dec 2002 English ...

Page 2: ...y 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 wir...

Page 3: ...ions 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 thi...

Page 4: ...TION 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 ...

Page 5: ...dibility Excellent audio performance and low noise interference 2 3 4 5 6 7 8 9 11 10 12 13 14 16 15 17 18 19 20 25 26 27 23 24 22 21 1 R LTO ON OFF 1K 0 0 MUTE MUTE MUTE MUTE 9K 250 OFF OFF 6 HIGH GAIN MID GAIN LOW GAIN SUB GAIN INPUT LEVEL FREQ MID HIGH FREQ LOW MID FREQ SUB LOW SUB HIGH LOW MID 3K 1K 1 7K 1 1K 7K 850 350 100 190 120 180 80 30 50 35 1K MUTE MUTE MUTE MUTE 9K 250 HIGH GAIN MID GA...

Page 6: ...ut 33 43 Ch1 LOW Output Ch2 MID Phase Inversion 34 44 Ch1 MID Phase Inversion Ch2 MID Output 35 45 Ch2 HIGH Phase Inversion Ch1 MID Output 36 46 Ch1 HIGH Output Fuse Holder 28 38 X40 4 way stereo active crossover 4 WAY STEREO MODE Ch2 HIGH Output 37 47 Ch1 HIG Phase Inversion H Ch1SUB Output 32 42 Ch2 LOW Phase Inversion Fuse older AC nlet H I Your unit may have the AC voltage selector 115V 60Hz o...

Page 7: ...markers 110 120V 220 240V THIS IS SET FOR 110V AC TO 120V AC OPERATION THIS IS SET FOR 220V AC TO 240V AC OPERATION 220 240V 110 120V Phase nversion I 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 CD Boost 3 5kHz then 6dB per octave till 22 5kHz during the long distance transmission in ...

Page 8: ... 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 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 an additional at least 4 ...

Page 9: ...dio devices Follow the configuration examples below for your particular connection b In Line Connection Unbalanced Balanced Tip Ring Sleeve 1 2 3 1 2 3 1 2 3 TIP RING SLEEVE 2 1 3 1 2 3 1 2 3 Cent e r Screen 1 2 3 1 2 3 1 2 3 1 2 3 2 1 3 2 1 3 Tip Ring Sleeve 1 2 3 Tip Sleeve 1 2 3 TIP RING SLEEVE TIP SLEEVE 1 2 3 1 2 3 ...

Page 10: ... den ansluts till ett natverk A101 HIGH MID LOW SUB 5 APPLICATION 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 amplifie...

Page 11: ...evel Output Level CD Boost Mute Phase 100Hz 1KHz 1KHz 9KHz Av 0dB fc 46 200 1K 5KHz 94dBu 95dBu 94dBu 92dBu 114dB 30Hz 250Hz Electrical SUB LOW Frequency Range LOW MID Frequency Range MID HIGH Frequency Range HUM Noise SUB e 0db S ction utput O LOW Section Output 0dB MID S O 0dB ection utput HIGH Section Output 0dB S N Ratio Power Supply Connector type Type Mains supply Power Rating 3 pole IEC gro...

Page 12: ...d LTO of 1 year from the purchase date if you have completed the Warranty Registration Card in time 3 3 During the warranty service may repair or replace this product at its own option at no charge to you for LTO 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 Nor...

Page 13: ...ll rights reserved to ALTO Mobile Due to continued development in response to customer feedback product features specifications and or internal external design may be changed without prior notice No photocopying translation or reproduction of any part of this user manual is allowed without prior written permission Copyright 2004 Seikaku Technical Group Limited c NF00923 1 0 ...

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