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Summary of Contents for G-Lab M4L

  • Page 3: Table Of Contents

    Controlling via MIDI commands ________________________________ 4 DS1 micro switch ____________________________________________ 6 DS2 micro switch ____________________________________________ 6 Power supply _______________________________________________ 6 Parameters _________________________________________________ 7 Possible using of the M4L _____________________________________ 7 MIDI implementation chart ____________________________________ 9 EMC/EMI & Certificate of conformity ___________________________ 11...
  • Page 4: Structure

    Using the MIDI commands it is also possible to mute the signal (e.g. for silent tuning). M4L can be controlled by every MIDI controller and it is particularly recommended as an extension of the G LAB guitar system controllers GSC.
  • Page 6: Scheme And Signal Path Description

    Due to this the M4L doesn’t influence the guitar tone (doesn’t change the tone and doesn’t cut the signal). It is recommended to use the M4L to “exclude” from the effects’ signal path the effects without true bypass function. Controlling by MIDI provide galvanic separation from controlling device.
  • Page 7 Receiving of the command which units’ digit or decimal digit has out of range value causes ignoring that digit(s) and considering the digit with correct value. M4L can be controlled by individual Control Change type command or individual controllers of particular functions. The table below shows the Control Change commands functionality.
  • Page 8: Ds1 Micro Switch

    DS2 switch should be switched to ON position. The DS2 switch should be switched to OFF position when in the signal path after the M4L there is another device muting the switching clicks.
  • Page 9: Parameters

    30 dBu Power supply 9V DC (8,7 to 9,4V) Power consumption 0,1 A Possible using of the M4L Below are shown the possible schemes of M4L connection with the guitar system. Scheme of M4L connection to the amp’s effects loop...
  • Page 10 Scheme of adding four effects loops to the GSC controller Scheme of the system with the M4L connected to the amp input and the GSC in the effects loop...
  • Page 11: Midi Implementation Chart

    MIDI implementation chart G LAB MIDI 4xLOOP M4L rev. 1.04 10.01.2009 Function Transmitted Recognised Basic Channel Default Changed 1-16 Mode Default Messages Altered Note Number True Voice Velocity Note ON Note OFF After Touch Keys Channels Pitch Bend Control Change...
  • Page 13: Emc/Emi & Certificate Of Conformity

    ELZAB SA, ul. Kruczkowskiego 39, 41-813 Zabrze, Poland, hereby declares on own responsibility that the following product: MIDI 4 x LOOP (G LAB M4L) that is covered by this certificate and marked with CE 07 label conforms with following standards:...
  • Page 14 DO NOT PLACE THIS PRODUCT INTO THE WASTE CONTAINER ! This device is marked with a cross-lined waste container symbol according to 2002/96/EU Directive on Waste Electric and Elec- tronic Equipment. Such marking informs that after usage equipment can not be trashed together with other household waste.

Table of Contents