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Description of Controls and Connections

RHYTHM TEMPO

TAP

SW EFF

BYPASS

ENCODER 1

This knob is used to:
1- Choose effects and its parameters.
2- Save patches in GEP 50's internal memory.
3- Alter the speed (TEMPO) of the electronic 
drums.

DISPLAY

Exhibits the patch currently selected, values of 
its parameters, and other important 
information for the operation of the GEP 50.

FOOTSWITCHES

They are used to select the patches, turn 
on/off the effect in a patch, select the 
electronic drums' different rhythms, tap the 
time for the effects of modulation, delay and 
bypass.

ENCODER 2 - 

This knob is used to:

1- Choose the style and the parameter of the 
effect.
2- Alter GEP 50's master level.
3- Alter the electric drums' level.
4- Turn on/off the electronic drums.
5- Edit the electronic drums' parameters.
6- Edit the tuner's parameters.

GUITAR

HEADPHONES

AMPLIFIER

AC ADAPTOR

EXPRESSION
PEDAL

Jack (OUTPUT/PHONES)

Connect your amplifier or your headphones 
in this jack

Jack (CONTROL IN) - 

In case you 

have an expression pedal, (ONERR 
EP-50) connect it in this jack.

Jack (INPUT) - 

Connect your 

guitar in this jack.

Jack (DC IN)

Connect the AC ONERR PA-30 adaptor in this 
jack. Specifications of the a.c. adapter :
Output: 9 volts c.c./ 350/mA. Negative Center.

Summary of Contents for GEP 50

Page 1: ...of use and safety Keep this manual for future reference in case of any doubts about the product s functioning All brand names mentioned in this manual are trademarks from their respective owners comp...

Page 2: ...pacts Before moving the unit make sure all the switches are set off and all cords coming from external devices are disconnected Disconnect this unit from an outlet in case of storms or heavy rain foll...

Page 3: ...ys connect all the electric and audio equipments when they are turned off to prevent damage toward their well functioning For cleaning wipe the unit with a soft and dry cloth or one that has been slig...

Page 4: ...e time for the effects of modulation delay and bypass ENCODER 2 This knob is used to 1 Choose the style and the parameter of the effect 2 Alter GEP 50 s master level 3 Alter the electric drums level 4...

Page 5: ...ssess parameters that can be adjusted to your taste similar to the knobs of an effect pedal The effect parameter alters the tone intensity speed etc EDIT EFFECT Mode In this operation mode you can edi...

Page 6: ...automatic mode The value of the MASTER LEVEL will be exhibited on the display while Encoder2 is turned After adjusting the desired value the display will return to its previous state and will exhibit...

Page 7: ...usly pressed down for about 2 seconds T h e G E P 5 0 w i l l e n t e r MUTE TUNER Mode A A B C C D D E F F G G The right digit of the display shows a rotation bar that indicates by how much the tunin...

Page 8: ...thms turn Encoder2 1 Press down Encoder2 to turn on off the electronic rhythm 1 Press and hold Encoder2 for approximately 2 seconds 5 To exit RHYTHM Mode press down Encoder2 again for approximately 2...

Page 9: ...mits the adjusting of the parameters according to the interval of time that the footswitch DOWN is pressed repetitively If the display exhibits one of these two states it means that the effect module...

Page 10: ...conclusion of the operation NOTE If a patch is copied to the position of another patch the content of patch destine will be replaced with the content of patch origin Therefore the content of destine p...

Page 11: ...he Patch Level The effect modules that can be controlled through the expression pedal are listed in the table aside 6 Save the patch after associating a function form the expression pedal to the patch...

Page 12: ...ue effect TAP EXP Symbols Adjusts the level of the patch within a 00 99 range The value 50 corresponds to a unitary gain EXP PATCH LEVEL COMPRESSOR The compressor is used to produce long sustains to t...

Page 13: ...I GAIN Overdrive characterized by the amplifier Fender Tweed adjusted at the dirty channel BRITISH HI GAIN Overdrive characterized by the amplifier Marshall adjusted at the dirty channel CALIFORNIAHI...

Page 14: ...2 dB EQ LOW EQ MID EQ HI This effect reduces the noise produced by the pickups of an electric guitar likewise the noises deriving from the chaining of distortion effects NOTE Louder noises require hig...

Page 15: ...tuning of your instrument ROTARY SPEAKER Simulates the functioning of a Leslie box which possesses the speakers spinning around its axis A slight detune is generated and added to the original sound o...

Page 16: ...tic characteristics of a small environment like a compact studio The higher the effect type is the higher the overall intensity will be ARENA This reverb style simulates the acoustic characteristics o...

Page 17: ...5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 LATIN MUSIC BOSSA NOVA BALLAD 1 BALLAD 2 BLUES PRESET RHYTHM 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52...

Page 18: ...ults If you wish to restore all the original factory patches and defaults follow the instructions below 1 Disconnect the power supply of the GEP 50 2 Press and hold Encoder1 and footswitch UP simultan...

Page 19: ...e warranty period Microtronix Eletr nica Ltda will elect to repair or replace it free of charge After the warranty period Microtronix Eletr nica Ltda will repair this unit for a fee This warranty is e...

Page 20: ...O N E S T E P B E Y O N D www onerr com Designed and Manufactured in Brazil...

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