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ALTOGATE
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Alto ALTOGATE [11/15] Rack ounting m

TIP RING SLEEVE

SLEEVE TIP

SLEEVE RING TIP

TIP RING SLEEVE

Insert Leads

Centre (Send)

Screen

Centre (Return)

Screen

Tip

Ring

Sleeve

Tip (Send)

Sleeve

Tip

Ring

Sleeve

2 (Send)

2 (Return)

Tip

Ring

Sleeve

4.3 Rack ountingM

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 LTO GATE on high temperature devices

such as power amplifiers etc. to avoid overheating.

The most secure mounting is on a universal rack shelf available from various rack manufactures or your music

dealer. The LTO GATE fits into one standard 19" rack unit of space.

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Alto gate 1
Expander gate 1
User s manual 1
A registered electrician 2
Always use proper ready made insulated mains 2
And when unused for long periods of time to reduce 2
Before turning the product on make sure that it is 2
Cabling power cord failure to do so could result 2
Caution 2
Connected to ground this is to prevent the risk of 2
Cord is removed 2
Could result in fire 2
Covers should be removed by qualified service 2
Describes precautions that should be observed to 2
Do not block areas of ventilation failure to do so 2
Do not remove any covers 2
Do not use this product when in close proximity to 2
Electric shock 2
External connection 2
Ground terminal 2
Important safety instructions 2
In shock death or fire if in doubt seek advice from 2
Instructions 2
Keep product away from naked flames 2
Manual do not short circuit the fuse holder before 2
May present to reduce the risk of electric shock do 2
Never cut internal or external ground wires likewise 2
Never remove ground wiring from the protective 2
No user serviceable parts inside 2
Not remove any covers unless the ac mains power 2
Off and disconnected from the ac outlet 2
Personnel only 2
Placed in municipal waste and should be 2
Possibly the user 2
Power supply 2
Prevent damage to the product 2
Prevent the possibility of death or injury to the user 2
Protect the power cord and plug from any physical 2
Replacing the fuse make sure that the product is 2
Safety related symbols 2
Separate collection 2
The recommended fuse type as indicated in this 2
The risk of electric shock or fire 2
To avoid the risk of electric shock and damage do 2
To do so could result in damage to the product and 2
Warning 2
For our lto audio team music and sound are more than a job are first of all passion and let us say our 3
Preface 3
Thanks for choosing lto gate and thanks for choosing one of the results of lto audio team job and 3
The lto line presents unparalleled analogue and digital products made by musicians for musicians in our r d 3
Installation and connection 4
Table of contents 4
The concept behind 4
Feature list 5
Introduction 5
Level limit you may incur in distortion because of the dynamic range of the instrument therefore a certain 5
Of audio signal below a certain set threshold to avoid unexpected noise 5
Some technical stuff 5
The concept behind 5
The expander gate section 5
To 125 db but the dynamic range of digital equipment is more or less 25 db less a further reduction in dynamic 5
You can select freely the expander gate mode in your unit the two modes can reduce or cut off the level 5
A lot of instruments such as microphones amplifiers guitar pickups etc generate some noise either at low 6
Audio signal now if you scream into a microphone you will not hear the noise generated by such microphone 6
Be fast enough to monitor carefully the speed of the musical signal and it would be impossible to detect signal 6
But if you sing into your microphone more gently in a soft passage the level of the signal generated by your 6
Chart 1 the dynamic range capabilities of various devices 6
Chart 2 the interactive relationship between the operating level and the headroom 6
Dynamic range of over 150db for this reason the amplitude control will be applied only to those audio 6
Frequencies hum or at high frequencies hiss such noise will inevitably interfere with the quality of your 6
Now we do not need dramatic expansion of a signal across the range this would generate a resulting 6
Passages and decrease the volume during loud passages unfortunately even the great houdini would not 6
Peaks and consequently levelling them out manual control is therefore out of question the answer is agc 6
The vca is the soul of the lto gate and it is one of the best components available today in his category 6
This problem expanders and noise gates are used an expander is the opposite of a compressor attenuating 6
Uously below the set threshold while the noise gate will simply dramatically cut off the audio signal completely 6
Voice will get much closer to the floor noise level and such floor noise will become disturbing in order to kill 6
Voltage controlled amplifier vca 6
Audio interactive quad expander gate 7
Channel 1 channel 3 channel 4 7
Channel 2 7
Controls 7
Couple switch pressing this push button for stereo mode operation 7
Expander gate expander gate parametric sc filter expander gate parametric sc filter 7
Gain reduction db gain reduction db 7
Hold control 7
Inputs 7
It determines the amount of time in the release process the release time on lto gate can be set from 0 5 7
It represents the amount of time that passes before the release process starts to work when the signal is below 7
Lto gate 7
Of the next channel with exception of the sc monitor 7
Parametric sc filter expander gate parametric sc filter 7
Pic 1 the front anel of he lto gate p t 7
Release control 7
Signals below this level cause expansion 7
That will automatically adjust the internal level when unbalanced connectors are detected the correction is 7
The details please refer to following content 7
The front panel 7
The threshold point used only in gate mode 7
Threshold 7
Threshold control 7
Threshold gain reduction db 7
Threshold led the led lights up when the expander gate is activated the hold led lights up when the hold circuit starts to work the led lights up when there are no audio signals below the set threshold 7
To make your life easy and clean we have provided lto gate with electronically balanced inputs even if 7
Turn the apparatus on or off 7
When engaged the front channel will take control of the next channel and override all the controls and switches 7
You operate at high signal levels hum and noise will be reduced automatically there is also a servo function 7
Your lto gate presents with four channels each channel is equipped with the same elements 3 push button 7
Ac input 8
Apparaten skall anslutas till jordat uttag nar den ansluts till ett natverk 8
Be used in expander mode it determines the ratio between the input and output level of audio signals below 8
Channel 1 channel 2 channel 4 channel 3 8
Discontinue use of this unit before repaired 8
Functions of expander and gate there are only frequency and bandwidth controls that can control the unit 8
Fuse holder voltage selector 8
Input output input output input output input output 8
It can set the operational mode of this unit you are able to operate it as an expender when it is pressed on the 8
Pic 2 the rear panel of the lto gate 8
Points toward the other arrow in the upper left comer of plug assembly and reinsert 8
Screwdriver pull pop out the fuse holder and rotate it so that the arrow showing the proper voltage in your area 8
Technician in the event of a fault or changing the supply voltage if the fuse continues to blow after replacing 8
The control is relying on the operational mode of this unit the range control can only be used in gate mode 8
The rear panel 8
This switch is used to activate the parametric side chain filter you can set its function by adjusting the frequency 8
You can connect the side chain control signal to the audio output using this switch engage it to eliminate the 8
Your unit may have the voltage selector 115v 60hz or 230v 50hz built into the fuse holder with a small 8
A wiring configuration 9
Ac inlet 9
Audio connection 9
Audio in the inputs are balanced xlr and 1 4 trs connectors they can be used to input signals 9
Audio out the outputs are balanced xlr and 1 4 trs connectors they can be used to output signals 9
Both types of connectors available on lto gate can be wired in balanced and unbalanced modes 9
For 1 4 trs jack 9
Installation and connection 9
Mains connection 9
Next to these markers 9
Please see following drawing for details 9
This is set for 110v ac to 120v ac operation 9
This is set for 220v ac to 240v ac operation 9
To change pull fuse holder out and rotate 180 then push in again 9
Unbalanced balanced 9
B in line connection 10
For xlr connector 10
Gnd screen 10
Hot ve 10
Hot ve 3 cold ve 10
In case you are using the main inserts of your mixing console and you have a single jack for send and 10
Link 3 to 1 10
Please see following drawing for details 10
Return 10
Screen 10
Sleeve 10
Tip ring 10
Dealer the lto gate fits into one standard 19 rack unit of space 11
Insert leads 11
Please allow at least an additional 4 depth for the connectors on the rear panel be sure that there is enough air 11
Rack ounting m 11
Such as power amplifiers etc to avoid overheating 11
The most secure mounting is on a universal rack shelf available from various rack manufactures or your music 11
Audio input 12
Audio output 12
Balanced 60 ohm unbalanced 30 ohm monitors the side chain key signal activates flexlink function expander gate switch activates the side chain filter 8 segment led display 1 3 6 10 15 20 30 40db 12
Balanced and unbalanced 21dbu 12
Connectors 12
Connectors type max output level impedance 12
Db 1khz 12
Impedance 12
Max input level 12
Mode filter gain reduction 12
Monitor couple 12
Technical specifications 12
Xlr and 1 4 jack 12
Xlr and 1 4 jack electronically servo balanced output stage 12
Block diagram 13
Expander gate parametric sc filter 13
Expander gate range radio parametric sc filter 13
Gain reduction 13
Input 1 13
Input 2 13
Input 3 13
Input 4 13
Output 1 13
Output 2 13
Output 3 13
Output 4 13
Range radio 13
Of 1 year from the purchase date if you have completed the warranty registration card in time 14
Please fill out all the information carefully and genuinely miswriting or absence of this card will void your warranty 14
Retail dealer and it can not be transferred 14
The warranty service is only available to the original consumer who purchased this product directly from the 14
Warrants that this product will be free from any defects in materials and or workmanship for a period 14
Warranty 14
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 2005 seikaku group 15

Alto ALTOGATE [11/15] Rack ounting m

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