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RETROAKTIV MPG-50 USER MANUAL

30

• •  5 blinks

5 blinks: Error parsing sysex header. This is the most likely error to occur if the MIDI connection is not 
reliable and the system is receiving corrupted data.   Also check to make sure that you are loading the 
correct operating system into the controller.  If this persists, contact Retroaktiv to make sure we didn’t 
post the wrong firmware update.  

• •  6 blinks

6 blinks: Checksum failure. There was an error in one or more of the bytes received during the sysex 
transfer.   Data was corrupted, either through an unstable connection, or a corrupted file.  This could mean 
that your MIDI cable is intermittent, or that your firmware file is corrupt.

• •  7 blinks

7 blinks: Flash write failure. There was an error writing data to the flash memory in the microcontroller.  This 
should never happen unless there is a hardware problem.  

WEIGHT AND DIMENSIONS

WEIGHT AND DIMENSIONS

The MPG-50 is 7 pounds and the enclosure measures 14.5” x 5.75” x 3.5”.   The enclosure has 4 heavy-duty 
screw-on rubber feet for no-slip tabletop use.   The MPG-50 can also be rackmounted using optional rack ears,  
or the Alpha Juno Mounting Stand, both of which can be purchased at www.retroaktivsynthesizers.com.  

THANK YOU!

THANK YOU!

Thanks for using these Retroaktiv synthesizer products. We are a small company and we appreciate the
musicians and artists using this gear.  If you have any questions or comments about this or other products,
please contact us by visiting www.RetroaktivSynthesizers.com and using the CONTACT US link at the top of
the page. We want to hear from you about your user experience and feature requests. Sincerely, 

-Rob Currier
Founder of Retroaktiv LLC.

All Retroaktiv products are built in Colorado USA.

This manual was written and illustrated by Rob Currier.

All rights reserved.  2021 Retroaktiv LLC

Содержание MPG-50

Страница 1: ...USER S MANUAL AND REFERENCE GUIDE All rights reserved 2021 Retroaktiv LLC Colorado USA ...

Страница 2: ...the shared tones system of saving sounds on the MKS 50 Each MPG 50 PATCH is stored as one object Intelligent patch generator creates new tones and patches at the push of a button Choose from Basses pads bells strings and more CC to sysex translation allows for DAWs and sequencers to record and playback parameter changes on MPG 50 in realtime Each of the 2 layers on the con troller can be controlle...

Страница 3: ...n the encoder SHIFT and turn the encoder parameter values will change by larger increments MENU NAVIGATION BUTTONS MENU NAVIGATION BUTTONS The menu navigation buttons are used to select editor pages in the MPG 50 The LEFT and RIGHT buttons are used to move the cursor in the menu pages The ENTER button is used to execute a variety of operations within a menu MIDI PATCHGEN MAIN and ASSIGN buttons ar...

Страница 4: ... on its MIDI IN will be immediately processed and passed OUT to the AJ MKS 50 The figure below shows a simple configuration of MPG 50 MKS 50 or ALPHA JUNO MIDI IN MIDI CONTROLLER OR DAW To begin making sound let s start by creating a basic setup Press the MIDI button on MPG 50 and set the MPG 50 MIDI settings as shown below and set the AJ MKS 50 to receive on channel 1 Set Unit 1 to either JUNO or...

Страница 5: ...50 can control 2 MKS Juno units independently Users can play the 2 Junos as a STACK where the two synths are layered similar to the UPPER LOWER tone architecture found on synths like MKS 80 and MKS 70 Super JX The two synths can also be daisy chained by using MPG 50 s Multi Unit Poly Mode which turns the 2 synths into a single 12 voice synth effectively doubling the polyphony of an Alpha Juno The ...

Страница 6: ...l data on channel 1 on both units It a note comes in on channel 1 then it will trigger a sound on both synths Notice that the Output Ch on Unit 1 is set to channel 2 and the Output Ch on Unit 2 is set to channel 3 MKS Juno Unit 1 is set to receive on channel 2 and MKS Juno Unit 2 is set to receive on channel 3 When playing in STACK mode the VOLUME slider can be used as a CROSSFADE slider Be sure t...

Страница 7: ... IN MULTI UNIT POLY MODE When in Multi Unit Poly Mode the 2 units become a single 12 voice synthesizer This means rather than stacking two 6 voice synths over each other we load the same sound onto both and use them as a 12 voice synthesizer The Unit 1 and Unit 2 MIDI Settings are the same as in STACK mode The only change is that MULTI UNIT POLY MODE is set to ON MPG 50 MIDI Settings Unit 2 Multi ...

Страница 8: ... To return to the MAIN screen at any time press the MAIN button in the navigation console Pressing MAIN repeatedly will cycle between editing the MAIN AUX or BOTH synths SHIFT MAIN will also toggle the layer The encoder and arrow buttons are used to navigate menus and change settings The SHIFT function refers to the switch on the encoder knob To engage the SHIFT function used for double button com...

Страница 9: ...OSE OCTAVE UP PATCH GENERATOR SHORTCUTS PATCH GENERATOR SHORTCUTS SHIFT PATCHGEN Generate a random tone PATCHGEN Mask all sections Unmask all sections MIDI MIDI SHIFT MIDI MIDI panic ASSIGN ASSIGN SHIFT PATCHGEN Clear all assigns STORAGE STORAGE SHIFT PATCHGEN Delete bank SHIFT CHORUS Increment bank USER CC USER CC SHIFT PATCHGEN Delete current CC map SHIFT CHORUS Load a new USER CC MAP SHIFT ASSI...

Страница 10: ...To navigate to the PATCH PARAMS menu press MAIN to return to the MAIN screen and press the RIGHT button The PATCH PARAMS menu will be displayed based on which type of unit MKS or JUNO the currently selected layer is set to Alpha Juno PATCH PARAMS menu contains Key Mode Key Mode Mono Poly Chord These can also be toggled using SHIFT GLIDE Bend Rng Bend Rng Sets Alpha Juno bend range MKS 50 PATCH PAR...

Страница 11: ...CH objects Or 12 banks of 64 PATCH objects on expanded units It is important to understand what each object type is composed of Below is a diagram showing what each object type in the MPG 50 consists of PATCH UNIT 1 PATCH UNIT 2 PATCH SETUP STRUCTURE SETUP STRUCTURE A SETUP is a snapshot of all of the current settings on all layers in the controller A bank of 64 setups on the MPG 50 contains 128 p...

Страница 12: ...C Users can create their own CC maps for controlling other equipment with MPG 50 STORING AND RECALLING OBJECTS STORING AND RECALLING OBJECTS To store and name an object To store and name an object Press SHIFT ASSIGN STORE and select thetype of object and the location that it will be stored Press ENTER and the storage dialog will appear Enter the new name of the object to be stored When naming an o...

Страница 13: ...t PORT 2 is currently set as a MIDI IN port The Chan Chan for the output port determines which MIDI channel the MPG 50 will transmit data received at the UNIT 1 IN PORT on as well as any slider data on UNIT 1 For example if MIDI INPUT PORT is set to CH1 and MIDI OUTPUT PORT is set to CH2 then incoming notes on CH1 will be transmitted out to UNIT 1 on CH2 The synth on UNIT 1 must be set to receive ...

Страница 14: ...cts MIDI GLOBAL SETTINGS MIDI GLOBAL SETTINGS This page contains global settings that affect how Unit 1 and Unit 2 will behave The MIDI Global Settings Page MIDI Port 2 MIDI Port 2 This sets the direction of the MIDI IN OUT jack which we are calling PORT 2 If this setting is set to INPUT then the IN OUT jack will function as a second MIDI IN If this is set to OUTPUT then the IN OUT jack will act a...

Страница 15: ...nts Chord Mode will allow 8 notes to be on at one time Depending on the size of the chord and how many notes being held the MPG will not steal voices It will instead play the chords with any available voices Chord Mode Parameters Program Change Program Change MPG 50 can handle program change messages in a variety of ways There are 4 different Program Change Modes on MPG 50 Block Block When a progr...

Страница 16: ...erations are possible using the SYSEX utility Send and receive a bank from MKS 50 or Alpha Juno 1 2 Send and receive Alpha Juno 1 2 or MKS 50 patch Send and receive bank in Retroaktiv format Send and receive any PATCH USER CC SETUP or ASSIGN in Retroaktiv format System backup of all stored object in internal and expansion memory When importing objects from Alpha Juno 1 2 or MKS 50 bidirectional co...

Страница 17: ...pha Juno Select the unit destination Select the unit destination Select which AJ unit to import from and select the bank to import to Press ENTER to begin importing Press ENTER to begin importing You will receive the prompt On Juno Hold DATA TRANFER and press 1 button Do this and the MPG 50 will display Receiving Sysex Data message Success Success MPG 50 will display Success message when the objec...

Страница 18: ...o Unit Unit This is the MKS 50 unit that the bank will be imported from MKS 50 bank select MKS 50 bank select Select bank A or B to be imported To import bank fromMKS 50 Select the unit destination Select the unit destination Select which MKS unit to import from and select the bank to import to Step 1 3 Receive PATCH A or B Step 1 3 Receive PATCH A or B You will receive the prompt On MKS 50 Press ...

Страница 19: ...imply navigate to Fn Receive MKS 50 Patch Fn Receive MKS 50 Patch or Fn Receive Juno Patch Fn Receive Juno Patch press ENTER on MPG then do a program change on the MKS Juno The patch will be received by MPG 50 and will now be in the MPG 50 edit buffer You will need to store the PATCH in MPG 50 memory using the normal STORE procedure SEND AN MKS 50 OR ALPHA JUNO PATCH SEND AN MKS 50 OR ALPHA JUNO P...

Страница 20: ...ge To restore MPG 50 memory contents navigate to Fn Storage Restore Fn Storage Restore Press ENTER on MPG 50 so MPG is waiting to receive the backup file Send the file to the MPG from your DAW PC A Success message will be displayed when complete Storage Restore will overwrite all of your objects Be sure you have backed up all of Storage Restore will overwrite all of your objects Be sure you have b...

Страница 21: ...ng ENTER when in the User CC Map menu will cycle through all sliders that have active CC routings Pressing ENTER when in the User CC Map menu will cycle through all sliders that have active CC routings making it simple to see which sliders in a map are active making it simple to see which sliders in a map are active The Default state of the User CC Map feature is OFF A User CC Map can only be used...

Страница 22: ...n channel 1 would affect UNIT 1 patch parameters CCs on ch 3 would affect UNIT 2 patch parameters This table shows the implementation of the MPG 50 MIDI CC to SYSEX translation This table shows the implementation of the MPG 50 MIDI CC to SYSEX translation Saw Select 15 Pulse Select 14 PWM Rate 26 PWM Depth 25 Sub Osc Select 16 Sub Osc Level 18 Noise Level 19 DCO Env Select 11 VCF Env Select 12 VCA...

Страница 23: ...ch generator menu Sections shown in the menu correspond to the sections labeled on the front panel DCO Pitch Mod VCF Filter Mod VCA Amp Mod LFO Envelope Times Envelope Levels and Chorus Setting a section s ENABLE to OFF prevents the patch generator Setting a section s ENABLE to OFF prevents the patch generator from randomizing any of the parameters in that section when a new tone is created from r...

Страница 24: ...LFO modulation Percussion Percussion All All Randomly selects synths from any of the following sub categories Drum Drum Kicks snares tom Cymbals Metal Cymbals Metal Cymbals hi hats etc Dance Dance All All Hoover and classic house patches Piano Piano All All Randomly selects pads from any of the following sub categories Ac Piano Ac Piano Bright pianos synth pianos El Piano El Piano Tine EPs Harpsi ...

Страница 25: ...es CTRL A Slider CTRL A Slider CTRL B Slider CTRL B Slider Expression Pedal Jack Expression Pedal Jack Aftertouch Aftertouch CC Source 1 Any CC 0 127 CC Source 1 Any CC 0 127 CC Source 2 Any CC 0 127 CC Source 2 Any CC 0 127 CC Source 3 Any CC 0 127 CC Source 3 Any CC 0 127 The CTRL A and B sliders are located in the ASSIGN section of the MPG 50 front panel The Expression Pedal source is connected...

Страница 26: ...weeps the Filter Cutoff down from 75 to 50 then INVERT can be selected All of the 5 destinations within each ASSIGN can be routed in this way to any parameters on the synth This allows the user to create complex real time modulations which would normally require many hands or many overdubs to accomplish in a single movement To deactivate an ASSIGN layer simply select NONE as the destination in a l...

Страница 27: ...IFT button when finished The PARAM MIN MAX and INVERT information will all be automatically entered and INVERT information will all be automatically entered MPG 50 ACCESSORIES MPG 50 ACCESSORIES MPG 50 MEMORY EXPANSION MPG 50 MEMORY EXPANSION The MPG 50 memory expansion card gives users an additional 128kb of on board storage This card can be installed by the user and requires no soldering or spec...

Страница 28: ...s breaking the feedback loop Problem Only the VOLUME and GLIDE sliders work Problem Only the VOLUME and GLIDE sliders work This indicates that the synth is not receiving sysex messages VOLUME and GLIDE are both CC type messages which is why those appear to work but other sliders do not To solve this be sure that the SYSEX setting in the Unit 1 2 MIDI Settings page is set to SYSEX not Send Translat...

Страница 29: ... unit can always be restored to an operating state with the successful load of a firmware update If you receive one of the following errors cycle power enter the bootloader and try again BOOTLOADER ERROR CODES BOOTLOADER ERROR CODES 2 blinks 2 blinks Didn t receive 0xF0 at beginning of message This indicates a fundamental problem with the syx file or MIDI communication This means that a non sysex ...

Страница 30: ...ver happen unless there is a hardware problem WEIGHT AND DIMENSIONS WEIGHT AND DIMENSIONS The MPG 50 is 7 pounds and the enclosure measures 14 5 x 5 75 x 3 5 The enclosure has 4 heavy duty screw on rubber feet for no slip tabletop use The MPG 50 can also be rackmounted using optional rack ears or the Alpha Juno Mounting Stand both of which can be purchased at www retroaktivsynthesizers com THANK Y...

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