PHYSICAL MODELING
ORGAN AND ELECTRIC PIANO
USER'S MANUAL
Firmware version 1.41 - Hardware rev. C
www.Crumar.it
CRUMAR MOJO 61 USER'S MANUAL - Page 1/32
Congratulations! You are now the lucky owner of a Crumar Mojo 61, one of the
finest digital keyboards of the modern era. The Mojo 61 is a high quality instrument that
was entirely conceived, developed and built in Italy with premium quality parts. This
instrument is the the result of years of research in sound design, quality electronics and
has been assembled with first class craftsmanship. We wish you many years of enjoyment
and good music with your new Mojo 61, and, if we may give you a small piece of advice...
you guessed it... please read this manual in its entirety and keep it in a safe place for future
reference! Have fun!
The Crumar Gang.
SAFETY INFORMATION
– Do not open the instrument. The instrument can be opened and repaired only
by qualified personnel. Unauthorized opening voids the warranty.
– Do not expose the instrument to rain or moisture.
– Do not expose the instrument to direct sunlight.
– Be careful not to infiltrate powders and liquids inside the instrument. Nor on
the outside.
– If liquids get inside the unit, remove the power immediately to prevent the risk
of electric shock and contact a service center as soon as possible.
– Do not clean using abrasive cleaners as they may damage the surface.
– Please keep all packaging in case you need to transport the instrument to a
service center.
– The instrument can be used in any Country that has a mains voltage between
100 Vac and 240 Vac.
– Do not touch the AC adapter with wet hands.
WARRANTY
– Crumar Mojo 61 is subject to 12 months manufacturer's warranty.
– Warranty extensions are at the discretion of the retailer.
– Damages caused by misuse, improper maintenance or transportation are not
covered by this warranty.
– During the warranty period, the customer is entitled to repair or replacement
of any parts considered defective at no charge.
– The possible replacement of the entire product is at the manufacturer's
discretion.
CRUMAR MOJO 61 USER'S MANUAL - Page 2/32
CHAPTER SUMMARY:
1. The sounds of Mojo 61 p. 4
2. The effects p. 7
3. The command panel part 1 p. 8
4. The command panel part 2 p. 9
5. The command panel part 3 p. 10
6. The rear panel p. 11
7. Connecting control accessories p. 12
8. How to turn the Mojo 61 on p. 12
9. All about VB3 p. 13
10. Playing the Pipe Organ p. 16
11. Combo Organs p. 17
12. Electric Piano p. 18
13. Applying effects to Combo Organs and Electric Pianos p. 19
14. The SHIFT button and the alternate functions p. 19
15. Connecting to the Wi-Fi Editor p. 20
16. Using the Editor Web-App p. 21
17. Brief explanation of all organ parameters p. 23
18. Shortcuts p. 27
19. The USB ports p. 28
20. MIDI Functions and implementation chart p. 29
21. MIDI Map p. 30
22. Specifications p. 31
CONVENTIONS USED IN THIS MANUAL
Every time a button, an LED or any other control is referenced, it is done by the
number that has been associated to it in the drawings found in chapters 3 to 8. When
you're invited to “press & hold” a button, it is intended that the button should be kept
depressed for at least 2 seconds.
You will find that some concepts might be repeated more than once, this happens
because there could be a mention in a chapter, and a detailed explication in a later
chapter.
We recommend you to read this manual with the instrument in front of you, so you
can put into practice what you are reading and you can have an instant feedback of
the notions here explained.
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1. THE SOUNDS OF MOJO 61
VB3-II virtual tonewheel organ
This is the exact same software that powers the Crumar Mojo and
presents the same parameter set. VB3-II is the result of 12 years of
study, research, experimentation and development of the simulation
of a vintage Hammond B3 organ. It is the evolution of the GSi VB3 1.4
which is still available as a plugin for digital audio workstations. In the
last 5 or 6 years it has been considered the best simulation of a
tonewheel organ by some of the most acclaimed jazz and rock
organists and organ techs. The Crumar Mojo has been a best-seller in the "Clone
Organ" market during 2013 and 2014 and now the new Mojo 61 offers you the
possibility to take advantage of one of the best clone organs ever without
compromises.
Pipe Organ
A pipe organ is not something you see every day, there are
thousands of different pipe organs that differ by the number of
stops, the number of manuals, the number and the type of pipes,
their size, their position, etc. but we wanted to keep it simple and
offer a pipe organ that would be easy to understand and inspiring to
play, so we chose to offer a Baroque-style organ based on a single
manual and 9 stops plus 3 couplers and the classic "tremulant" effect.
This synth engine works as an hybrid synthesizer, uses additive synthesis and
physical modeling, there are no samples involved. The expression pedal responds
naturally and varies the amount of air that passes through the pipes. There is a total
of 776 virtual pipes.
Combo Organs
The Mojo 61 features two simulations of very famous Italian
transistor organs of the seventies, the VOX Continental and the
Farfisa Compact DeLuxe. Each of these organs is simulated in every
detail, reproducing the essence and the exact color of that gritty
organ sound that was the cornerstone of rock bands like the Doors,
the Pink Floyd and similar. The polyphony is full (all 61 notes at the
same time) and all controls behave exactly like in the original
instrument. One note: since both these organs were originally based on 49-note
keyboards, we chose to bring the pedalboard tones to the first octave. The
pedalboard tone has no settings.
CRUMAR MOJO 61 USER'S MANUAL - Page 4/32
Tines Electric Piano
There's no keyboardist without a good Rhodes electric piano sound.
And the Mojo 61 offers what can be considered the best fusion
between sound fidelity and playability. This synth engine is based on
more than 10 years of experience on the physical modeling
simulation of a Rhodes electric piano, everything in the "body" of
each single note from the attack transient to the very last decay is
purely simulated. Some minor elements are added from selected
sampled sources, but the most important part of the sound is pure synthesis. Every
element of the mechanical piano is virtually reconstructed in the Mojo 61, from the
hammer, the hammer-tips, the tines, the tonebars, the pick-ups, the dampers, the
output filter straight to the output jack, and they all behave exactly like in the real
thing. Each of the 88 notes is simulated individually, and each note is a generator on
its own, thus offering the full polyphony, no note stealing and a very natural and true
to the original behavior. Plus, this new simulation features a very realistic
sympathetic resonance that involves the whole "harp" that can vibrate and resonate
every time a key is struck. It is really hard to tell the Mojo simulation from a real
Rhodes piano, the level of realism and the number of details is very high.
Reed Electric Piano
Similarly to the previous instrument, the simulation of a Wurlitzer
200A electric piano is totally based on physical modeling with only a
minor addition of sampled material. Same technique as before, every
part of the mechanical piano is virtually reproduced in order to
obtain the maximum level of realism and playability, including the
sympathetic resonance. This piano has 64 notes and all of them can
play at the same time.
Clavi Electric Piano
What's the funkiest keyboard ever? The Clavinet D6! And it's also one
of the most sought-after vintage keyboards of the 2000's and
probably one of the rarest to find on the used market. The Mojo 61
offers a simulation that will literally blow you away! This is pure
physical modeling, no samples were used whatsoever and every
single note is a generator on its own, just like the previous three
instruments in this list. Every detail from the original stringed
keyboard instrument is simulated and the polyphony, once again, is full (60 notes).
This electric piano has no sustain pedal, but still it behaves like any other electroacoustic instrument, has sympathetic resonances, reproduces the woollen yarn
damper sound upon note release, and offers the exact same control set as a Clavinet
D6: there are the four filters, the two pickup selectors and the damper lever. If you
listen close enough, you'll also notice that the first 23 strings are round wound
resulting in a fuller sound than the rest of the keyboard. No detail was left out in this
simulation!
CRUMAR MOJO 61 USER'S MANUAL - Page 5/32
Acoustic Grand Piano
This sample-set comes from the factory sample library of the GSi Gemini and is based
on the GSP-01 "Adaptive Sample Player" synthesis engine. It features a special
"Physical Modeling Piano Harp Resonance Simulator" that adds natural
resonances to the sound mimicking the behavior of a real piano harp. This is the only
sound of the Mojo 61 that is mostly based on pre-recorded material and has no
editing parameters.
Please note: each keyboard instrument simulated by the Mojo 61
respects the keyboard extension of the original instrument, so the
tonewheel organ allows 61 notes for the two manuals and 25 notes for
the bass pedalboard, the Pipe Organ allows 61 notes, both Combo
organs feature 49 notes plus 12 bass notes on the first octave, the Tine
piano allows up to 88 notes, the Reed piano allows 64 notes, the Clavi has only 60
notes (please notice that the first 5 notes of the keyboards will be muted), and the
Acoustic Piano has 88 notes.
CRUMAR MOJO 61 USER'S MANUAL - Page 6/32
2. THE EFFECTS
Tremolo / Auto-panner / Wha-Wha
Mojo 61 offers electric pianos and organs, so how could we miss such important
effects in the chain? The Tremolo is a must in mono mode when combined with the
Reed EP, and sounds great in square stereo with the Tines EP. And the Wha-Wha
sounds so funky in combination with each and every piano sound.
Stereo Phaser
This is a 4-stage stereo phaser (two individual phasers slightly shifted), and offers
parameters such as LFO speed and depth. Sounds great on the electric piano sounds.
Stereo Chorus
We've been listening to a selection of chorus effects for keyboards and guitars,
ranging from the early analog BBD choruses up to the modern digital ones, but one
that works really great on a vast variety of sounds is the two-voice BBD-based stereo
chorus that Roland included in the RD-1000 and in many others of their instruments
of the eighties. This is a simulation of that very chorus and sounds really great with
the electric pianos.
Amp Simulator
And here comes the boutique amp collection. This processor simulates five among
the most used guitar and bass amps of all times: the Fender Twin, the Marshall JCM800, the Vox AC30, the Roland Jazz Chorus and the Fender BassMan. Each amp
features a 3-way equalizer and an adjustable overdrive.
Rotary Effect Simulator
There's no VB3-II without a great rotary effect. This is the exact same rotary effect
featured in the Crumar Mojo, offering the same control set and the same sound.
Digital Reverb
This is a great sounding digital reverb that brings light and air to your sound. Sounds
soft, smooth and deep, precise and alive, airy and so much realistic that's a real joy to
have some in the mix.
Equalizer
This section contains a very basic 3-band equalizer. Use it to shape your sound for a
perfect match with your amplification system.
CRUMAR MOJO 61 USER'S MANUAL - Page 7/32
3. THE COMMAND PANEL – part 1
In this chapter we get familiar with the command panel of the Mojo 61; for a better
readability, the panel has been split into three parts. Numbers are used to reference
to each control later in this manual.
1. Volume knob.
2. Drive knob, adjusts the overdrive level when the Rotary Speaker effect is active
on VB3 and when a Static Amp is active on Combo organs or Electric Pianos.
3. RUN/STOP: press to stop the rotation of the Rotary Speaker effect, the
corresponding LED will turn on; press again to re-start the rotation, the LED will
go off.
4. SLOW/FAST: press to switch between the two speeds of the Rotary Speaker
effect. The corresponding LED animates accordingly. Please note that the LED
animation is not synchronized with the sound, it's only there for a better visual
feedback. When the STOP speed is engaged, the LED animation halts.
Depressing this button while in STOP mode will switch the speed and the LED
will start animating again, even though there will be no effect on the sound until
the STOP is disengaged using button n. 3.
5. This LED indicates that the support for the optional “Half-Moon” switch has been
enabled, in this case buttons 3 and 4 are unresponsive. To enable and disable the
“Half-Moon” support, press buttons 3 and 4 together.
6. Press this button to switch cyclically between the Vibrato/Chorus options. When
playing VB3, there are 6 options (C1, C2, C3, V1, V2, V3); when playing the Combo
organ “Compact DeLuxe” , only 4 options are available (labeled with smaller
characters, explained later).
7. This button enables/disables the Vibrato/Chorus effect on the selected manual.
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Fig. 1 - Command Panel part 1
4. THE COMMAND PANEL – part 2
8. Presets for the upper manual.
9. Upper manual selector / Upper HOLD function.
10. The drawbars. These are used for all organ sounds the Mojo 61 offers.
11. Presets for the lower manual.
12. Lower manual selector / Lower HOLD function.
13. This LED indicates the status of the “Pedal-to-lower” function that can be
enabled and disabled by pressing button n. 14 and then button n. 12.
Since firmware 1.40, it's possible to keep the PEDALS button depressed for 2
seconds to activate a split between the pedalboard and the lower manual.
14. Pedalboard selector.
15. MODE selector. Press to switch between SINGLE and SPLIT, press and hold to
activate the EXT-LOWER mode.
CRUMAR MOJO 61 USER'S MANUAL - Page 9/32
Fig. 2 - Command Panel part 2
5. THE COMMAND PANEL – part 3
16. Knobs for adjusting the Reverb level and the amount of key-click produced by
VB3 and the Combo organs.
17. Equalizer section, works on top of everything.
18. Multi-function button n. 1.
19. Multi-function button n. 2.
20. Multi-function button n. 3.
21. Multi-function button n. 4.
22. Instrument type selection. Press this button to cycle between the four basic
sounds (VB3, Pipe organ, Combo organ, Electric piano) from top to bottom.
Pressing this button along with the SHIFT button cycles from bottom to top.
23. This LED indicates whether the transposition has been enabled.
24. This LED indicates the status of the Rotary Speaker effect or the Static amps.
25. This LED indicates whether the LOCAL-OFF function has been enabled. In a
normal playing situation this LED should be off.
26. The SHIFT button. It is used in conjunction with other buttons for alternate
functions and shortcuts that will be explained later in this manual.
CRUMAR MOJO 61 USER'S MANUAL - Page 10/32
Fig. 3 - Command Panel part 3
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