Midi 4 x Loop M4L 4 User Manual Instrukcja obsługi Bedienungsanleitung
Version 1.
Dear Customer, Congratulations for choosing our G LAB product! MIDI 4 x LOOP (M4L) is a loops’ switcher controlled by MIDI interface (by Program Change or Control Change commands) or manually, by using the buttons. 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.
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Scheme and signal path description M4L has true passive signal path (without signal boosting and buffering elements). 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.
LOOP PROG. CH. 3 MUTE 4 X1 OFF OFF OFF X2 ON OFF OFF X3 OFF ON OFF X4 ON ON OFF PROG. CH. 100 LOOP 2 3 1 ON 101 ON MUTE 4 ON ON ON RESTORE OFF X – every value from 0 to 9 range The units’ digit of program number defines the state of LOOP3 and LOOP4, the decimal digit of program number defines the state of LOOP1 and LOOP2.
CONTROL CHANGE NUMBER 89 LOOP VALUE 3 MUTE 4 X1 OFF OFF OFF X2 X3 ON OFF OFF ON OFF OFF X4 ON ON OFF X – every value from 0 to 9 range CONTROL CHANGE NUMBER VALUE 89 100 101 1 LOOP 2 3 4 ON ON ON ON RESTORE MUTE ON OFF DS1 micro switch DS1 micro switch connects controlling circuit ground to main signal ground. If the M4L’s 9V power supply circuit is fully separated from ground (isn’t connected with any ground) the DS1 switch should be switched to ON position.
Parameters Dimensions (depth x width x height) 270 x 70 x 38 mm Weight 620 g Maximal input signal 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 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 8
MIDI implementation chart G LAB MIDI 4xLOOP M4L rev. 1.04 Function 10.01.2009 Transmitted Recognised X X 1 1-16 X X Note Number True Voice X X X X Velocity Note ON Note OFF X X X X After Touch Keys Channels X X X X Pitch Bend X X Control Change X 7, 80-83,89 Prog Change X 1-4,10-14,20-24,30-34,40-44,100-101 System Excl.
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EMC/EMI & Certificate of conformity EMC/EMI This device has been designed and manufactured to conform with directives and standards in the field of safety operations and electromagnetic interference. This device uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However in spite of performing below standards there is no guarantee that interference will not occur in a particular installation.
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 Electronic Equipment. Such marking informs that after usage equipment can not be trashed together with other household waste. An user obligation is to return wasted equipment to a party collecting wasted electric and electronic equipment.
G LAB is a brand of ELZAB SA COMPANY ADDRESS ELZAB SA ul. Kruczkowskiego 39, 41-813 Zabrze, Poland phone: +48 32 272 20 21, fax: +48 32 272 81 90 Sales & Export Department ...................................... phone: +48 32 272 30 51 ext. 34, 39, 64 +48 32 272 20 21 ext. 308, 366, 468 e-mail: glab@glab.com.pl Technical Support ..................................................... phone: +48 32 272 30 51 ext. 64 +48 32 272 20 21 ext. 308 e-mail: help@glab.com.pl www.glab.com.pl Nr rys.
