Crumar Mojo Classic User manual

THE ULTIMATE
TONEWHEEL ORGAN
EXPERIENCE
USER'S MANUAL
Firmware version 1.00
www.Crumar.it
CRUMAR MOJO CLASSIC & SUITCASE USER'S MANUAL - Page 1/20

Congratulations for purchasing your new Crumar Mojo. You made the right choice.
Crumar Mojo is a modern classic, is built around the most recent technologies but feels
and sounds as authentic as the real thing. e wish you years of enjoyment and good
music with your new digital tonewheel organ. Make sure you read through this useful
manual to explore its capabilities and, most importantly, have fun!
SAFETY AND WARRANTY INFORMATION
–Do not open the nstrument. The nstrument can be opened and repared only by
qualfed personnel. Unauthorzed openng vods the warranty.
–Do not expose the nstrument to ran or mosture.
–Do not expose the nstrument to drect sunlght.
–Be careful not to nfltrate powders and lquds nsde the nstrument. Nor on the
outsde.
–If lquds get nsde the unt, remove the power mmedately to prevent the rsk of
electrc shock and contact a servce center as soon as possble.
–Do not clean usng abrasve cleaners as they may damage the surfaces.
–Please keep all packagng n case you need to transport the nstrument to a servce
center.
–The nstrument can be used n any Country that has a mans voltage between 100 Vac
and 240 Vac.
Mojo Sutcase wooden enclosure s not complant wth A.T.A. regulatons, as such t
can't be loaded n the hold of a plane wthout a proper A.T.A. case.
All external parts (handles, hnges, locks, edge protectors, ld) are subject to wear and
are not covered by ths warranty.
The pant job s subject to wear and s not covered by ths warranty.
–Crumar Mojo s subject to 12 months manufacturer's warranty.
–Warranty extensons are at the dscreton of the retaler.
–Damages caused by m suse, mproper mantenance or transportaton are not
covered by ths warranty.
–Durng the warranty perod, the customer s enttled to repar or replacement of any
parts consdered defectve at no charge.
–The possble replacement of the entre product s at the manufacturer's dscreton.
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CHAPTER SUMMARY:
1. The sound of Mojo p. 4
2. The Command Panel p. 6
3. The Rear Panel p. 10
4. Accessng the Edtor p. 11
5. Organ Edt Parameters p. 14
6. Effect Edt Parameters p. 18
7. The USB Ports p. 19
8. MIDI Map p. 19
9. Specfcatons p. 20
NOTES ABOUT THIS MANUAL
Ths manual can be consdered a lve document, as t may be updated n future
accordng to possble changes ntroduced n new frmware updates. We recommend
to keep an eye at the support secton of the Crumar webste and check for new
versons of both the manual and the nstrument's frmware.
You wll fnd that some concepts m ght be repeated more than once, ths happens
because there could be a menton n a chapter, and a detaled explanaton n a later
chapter.
We recommend you to read ths manual wth the nstrument n front of you, so you
can put nto practce what you are readng and can have an nstant feedback of the
notons here explaned.
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. THE SOUND OF MOJO
VB3-II virtual tonewheel organ
The sound of Crumar Mojo s based on the same “core” of the vrtual
nstrument GS VB3-II. Whle the vrtual nstrument runs on regular
computers, Mojo s bult on a new dedcated DSP platform,
purposedly desgned by Crumar for the new Mojo lne. Ths means
that wth Mojo not only you have access to a fam lar and ntutve
organ nterface controllng one of the most realstc tonewheel organ
smulatons, but you also have access to a detaled and extensve parameter set that
lets you custom ze the organ sound n order to match your preferences any way you
lke.
Sound Engne man features:
•Full polyphony (61 upper + 61 lower + 25 pedals = 147 notes)
•91 modeled tonewheels wth accurate phase synchronzaton
•Adjustable leakage nose and cross modulaton between tonewheels
•A total of 22 dfferent tonewheel generators to choose from
•Generator shapng for a total of 154 generator combnatons
•Adjustable global tunng from 430 to 450 Hz
•Foldback on 16" deactvatable
•Complex wheels
•Resstor wrng wth multple optons
•Realstc “run” motor wow & flutter
•Busbars and 9 key contact smulaton
•Strng Bass wth adjustable release tme
•Loudness "robbng" effect
•Sngle trggered percusson wth natural capactor dscharge/recharge
•Adjustable Percusson Level & Decay
•Vbrato/Chorus vrtual scanner
•Adjustable Vbrato Scanner depth & m x
•Dynam c tube overdrve smulaton
•Dgtal stereo reverb
•Rotary speaker smulaton wth vrtual m crophone postonng, tube overdrve,
tube feedback
•Rotors "Front Stop" brake poston wth adjustable preferred poston
•Upper and Lower manuals SPLIT wth adjustable splt pont
•Supports pedal sustan
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Hardware man features
•Dual Manual Organ wth two 61-note 5 octave C - C waterfall sem -weghted
velocty senstve keyboards
•External optonal W -F antenna for accessng the edtor Web-App
•Onlne USB wred edtor
•Two Groups of 9 Real Drawbars plus 2 pedalboard drawbars
•Knobs for Volume, Drve, Reverb, Keyclck, Crosstalk, Percusson Volume,
Balance, Dstance, Bass, M ddle, Treble
•Four dedcated buttons for Tonewheel organ percusson.
•Dedcated buttons for Vbrato on/off
•Vbrato type knob
•Drawbar HOLD mode for alternate drawbar settngs
•Two drawbar presets per manual wth easy storage mode
•Dedcated button for rotary effect speeds
•Pedal to lower functon (adds the sound of pedalboard to lower manual)
•Shft button for alternate functons (transpose, rotary bypass)
•MIDI IN and OUT connectons
•USB Type B (devce) for MIDI IN/OUT
•2 USB Type A (host) for software updates and wf module
•Balanced Audo outputs
•Headphone jack
•Expresson pedal nput
•Sustan pedal nput
•Halfmoon or Footswtch nput wth dedcated selector
•AC n 100-240V
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2. THE COMMAND PANEL
In ths chapter we explore the command panel of the Mojo. Most of the controls on
the panel are fam lar to veterans of the tonewheel organs. If you ft that category,
you've probably already recognzed the drawbars, upper on the left, lower on the
rght, pedalboard n the m ddle; then the controls for the “Vbrato Scanner”, the four
tablet swtches for the percusson, and you've also notced that everythng s rght
where t belongs.
2. – LEFT SIDE KNOBS
On the left sde you fnd the 3 knobs: volume overdrve and reverb. Havng these
three on the left sde s knd of tactcal, so you can keep playng wth your rght hand
whle adjustng the three most mportant parameters before startng your
performance.
2.2 - VIBRATO/CHORUS
The Vbrato/Chorus controls, whch belong to ths sde of the console, are presented
exactly lke on a vntage tonewheel organ. There are two large buttons for turnng
the effect on or off on the upper or on the lower manual ndependently, and a large
knob that lets you choose the type of effect to use between the 6 possble
combnatons: V1, C1, V2, C2, V3, C3 whereas the 'V' produce just a vbrato effect and
the 'C' produce a chorus effect. In the Mojo the selector s a rotary encoder wth 6
LEDs that ndcate the current selecton.
PLEASE NOTE: As opposed to mechanical “rocket” switches, these are push-push yellow
illuminated buttons, about the size of the vintage tablet switches, that work exactly the
same way. You can hit them in any point to activate them, no need to reach for the exact
middle point. Furthermore, when the C/V effect is turned on for the lower manual, it's also
applied to the pedalboard tones.
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2.3 – ROTARY SPEED BUTTON
The large horzontal button labeled ROTARY SPEED s used to control the bult-n
Rotary Speaker smulator. When the smulator s on, push ths button to swtch
between the slow and the fast speeds; push and hold for about half a second for
brakng the rotary speaker (stop poston). When n brake, push agan to return to the
prevous speed. The lght wll blnk smoothly slow or fast, or wll reman stll, to
ndcate the current speed.
Use ths button n conjuncton wth the SHIFT button for enablng/dsablng the
Rotary Speaker smulaton (see below).
PLEASE NOTE: if this button seems unresponsive, check the HM/FS selector on the back
of the instrument. In order to use this button, the selector must be in the FS (FootSwitch)
position. This button cannot be used if an Half-Moon switch is in use. Connections are
explained later in this manual.
2.4 – THE SHIFT BUTTON
The small SHIFT button on the top left sde of the control panel s used for a few
alternate functons:
1.Push and hold the SHIFT button along wth the ROTARY SPEED button to
dsable or enable the nternal Rotary Speaker smulaton. If the smulaton s
OFF, the red LED next to the ROTARY SPEED button becomes lt.
2.Push and hold the SHIFT button along wth the MANUAL button of the lower
secton, next to the PEDAL TO LOWER ndcaton, to actvate or deactvate the
pedal-to-lower functon that brngs the pedalboard tones to the lower manual.
If ths functon s actve, the red LED wll become lt;
3.Push and hold the SHIFT button along wth notes, on the upper manual, from
the second C note to the fourth C note to actvate the transposton. If a
transposton s actve, the red LED next to the SHIFT button wll become lt. To
cancel the transposton, hold SHIFT and play the thrd C note (m ddle C).
PLEASE NOTE: when the transposition is active, certain notes that are outside the 61-
note playable range will not be available any more. For example, since the last note is C, if
the transposition is up by one semitone, C becomes B, so the C key will become silent.
CRUMAR MOJO CLASSIC & SUITCASE USER'S MANUAL - Page 7/20

2.5 – UPPER PRESET
Crumar Mojo offers two presets for each manual, plus the CANCEL poston, the
HOLD functon, and of course the manual drawbar mode.
PLEASE NOTE: Presets will only store the drawbar position, and nothing else. Also, when
a preset is active, the percussion is turned off on the upper manual. This behavior reflects
exactly what happens on the real tonewheel organs, with just a few changes.
–To select a preset, just push the desred button A or B;
–To use the lve drawbars, push the MANUAL button;
–To store a preset: once you've set the drawbars to the poston you wsh to
store, push and hold one of the two preset buttons, A or B, for about 2 seconds
untl the lght goes off and on agan.
The HOLD mode wll let you prepare an alternate drawbar regstraton whle holdng
the current regstraton actve. When the MANUAL button s actve, press the
MANUAL button agan, t wll start blnkng. Whle t's blnkng, move the drawbars to
prepare your alternate regstraton, you'll notce that the sound wll not reflect the
changes you're applyng to the drawbar regstraton. Once done, press the MANUAL
button agan to apply the change. The lght wll stop blnkng.
The CANCEL mode wll turn the whole manual off whle enablng the note
transm sson on the MIDI output ports. To enable the CANCEL mode, push and hold
the MANUAL button untl the lght goes off. To resume from the CANCEL mode, push
the MANUAL button or one of the A or B preset buttons.
2.6 – LOWER PRESETS
Lower presets work exactly lke for the upper secton, wth the only excepton that
you have no percusson on the lower manual, so selectng a preset wll not turn the
percusson off.
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2.7 – RIGHT SIDE KNOBS
On the top row we have:
–CLICK: use ths knob to adjust the amount of keyclick nose, whch s the typcal
nose you hear at the attack of each note, that on a real tonewheel organ s
caused by electrcal contacts underneath the keyboard;
–XTALK: use ths knob to adjust the amount of cross-talk effect. Also ths s an
effect found n the orgnal tonewheel organ, mostly caused by the large
amount of wrngs that nterconnect all the parts of the electronc crcut;
–PERC. VOL: ths comes handy to adjust the volume of the percusson sound n
case t becomes too loud or too soft, whch s a condton that may vary
accordng to the type of amplfcaton beng used. Sometmes the percusson s
just rght, but ts percepton may change when the speakers are set to a
dfferent poston, or when just usng a dfferent set of speakers;
–BALANCE: when the nternal Rotary Speaker smulaton s actve, ths knob
adjusts the balance between the upper horn and the bass rotor;
–DISTANCE: when the nternal Rotary Speaker smulaton s actve, ths knob
adjusts the dstance between the vrtual speakers and the vrtual m crophones,
varyng the amount of percepton of the Doppler effect and other acoustc
phenomenons that happen n a rotary speaker.
The knobs on the bottom row are BASS, MIDDLE and TREBLE. Nothng but an
effcent and handy 3-band equalzer useful to balance the sound accordng to the
type of amplfcaton system used, ts postonng n the venue, also the knd of
venue, possble resonances or unwanted reverberatons. When all three knobs are n
the m ddle poston, the sound can be consdered “flat”, .e. wth no frequences
added to or subtracted from the orgnal sound.
2.8 - PERCUSSION
Lke on the the vntage tonewheel organs, the command panel features the four
percusson swtches that have the followng functons, from left to rght:
1.Turn the percusson on or off.
2.Select between soft or normal percusson volume.
3.Select between fast or slow decay.
4.Select the harmonc appled to the percusson tone.
PLEASE NOTE: the percussion is only present at the upper manual. Also, when the
percussion is active, the 1' drawbar will be muted.
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3. THE REAR PANEL
All the connectons are present at the back panel. From left to rght:
–HEADPHONES: plug your headphones here to practce wthout an external
speaker. Ths output s paralleled wth the stereo lne output.
–AUDIO L & R: these are TRS jacks carryng balanced lne outputs at a +4 dB
level, but can also accept TS (mono) jacks for unbalanced sgnal. If you have to
use long cables, we suggest to use all balanced connectons.
–SWELL: ths TSR Jack nput accepts an expresson pedal wth lnear
potentometer n the range 10 ~ 50 Kohm; we suggest to use the orgnal
Crumar expresson pedals, but other pedals from other manufacturers may be
compatble.
–SUSTAIN: f you have a sustan pedal lke those used for dgtal panos, you can
connect t here for controllng the Rotary Speaker speeds (see confguraton n
the Edtor chapter) or for sustanng notes.
–HALFMOON or FOOTSWITCH: Ths secton ncludes a TRS Jack nput and a 2-
way selector. You can connect ether a Crumar Dual Footswitch or a Crumar
Halfmoon (optonal accessores) for controllng the Rotary Speaker speeds.
–MIDI IN – OUT: use these ports to connect to other MIDI equpment usng
standard MIDI cables.
–USB MIDI I/O: use ths USB “devce” port to connect the nstrument to your
computer or moble devce for accessng the Edtor or for DAW ntegraton. Ths
port carres only MIDI sgnals. Use ths port to connect a USB cable for USB
onlne edtor.
–SYSTEM USB: these are two USB “host” ports that can accept the USB Thumb
drve for nstallng future frmware updates, or for connectng the optonal W -F
Dongle, or even for MIDI-USB controllers such as the Crumar MojoPedals 2018
pedalboard, as explaned later n ths manual.
–The last two are the Power button and the AC plug.
PLEASE NOTE: hen the HM/FS Selector is in HM position (for Half-Moon switch), the
Rotary Speed button on the top panel is unresponsive. Set this to FS for using an external
Footswitch and/or the integrated button. This also applies to the sustain pedal functions.
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4. ACCESSING THE EDITOR
Snce the Crumar Mojo s based on GSi VB3-II, there's a load of parameters that can
be adjusted to obtan the desred organ sound. These parameters are accessble
through the Edtor software.
Mojo offers two edtors:
1.The remote MIDI edtor, accessble through the MIDI-USB port and a computer
or moble devce connected to the Internet.
2.The nternal edtor, accessble through a W -F connecton. The Mojo wll
functon as an hot-spot that creates ts own prvate network to connnect to.
4.2 – OPTION # – USB online Editor
You need a USB cable connected to the USB MIDI I/O port (lke those used for
connectng a prnter to a computer), use t to connect the Mojo to a computer, or to
an Androd devce usng an OTG adapter, or to an Pad usng Apple's Camera
Connecton Kt. Once done, launch your CHROME browser and navgate to ths
webste:
https://www.gsdsp.com/mojoclassc
PLEASE NOTE: if you don't have CHROME, install it from Google, or from the Play Store
(Android) or from the App Store (Apple). Other browsers may not be compatible.
4. - OPTION # 2 – Wi-Fi Editor
Usng the optonal USB W -F dongle. Connect t to one of
the two SYSTEM USB ports when the Mojo is turned off,
then turn on the nstrument and wat untl t's ready. Use
your computer or your moble devce and scan for new
W -F networks. You should be able to fnd a SSID lke
“Mojo-xxxxxx”, accessble wthout password. Access ths
network, and f your moble warns you that there's no
nternet avalable wth ths network (whch s qute
obvous), dsm ss the warnng and contnue.
Now you can launch your favorte web browser and navgate to the followng URL:
http://192.168.1.1/
PLEASE NOTE: the internal i-Fi access point accepts only one connection at a time, so if
you can't get to connect to the Mojo, check that you haven't left another device
connected. Also, if you don't want someone else to connect to your Mojo, just make sure
the dongle is not present before you turn on the instrument.
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4.3 – EDITOR HOME PAGE
When the connecton s done and the Edtor loads
nto your web browser, you should be able to see
the man screen, lke the pcture here.
On the top bar you can see an HOME con. Tap here
every tme you need to return to ths screen (don't
use the BACK functon of your browser). On the top
rght there are two more cons: one s for
savng/loadng snapshots, the other s for vewng
an help page.
The bottom bar contans lnks to other pages.
In the m ddle of the screen you have the Global
Optons:
–Tuning; Ths s the global tunng, where the
reference A note can be set to a frequency
between 430 and 450 Hz. The default value s
440 Hz.
–TX Channel: select the MIDI Basc Channel for transm ttng events to the MIDI
output port.
–TX Velocity: set ths to YES f you want the velocty nformaton s always
transm tted. If ths s set to NO, velocty nformaton s fxed at 127 and the “hgh
trgger pont” s used for both keyboards. Hgh trgger pont s always used for
the nternal sound generator.
–CC Send: choose whether you wsh to send all MIDI Continuous Controller
messages, only messages related to the pedals, or none.
–CC Presets: choose whether you wsh to send all drawbar MIDI CC messages
when an organ preset s selected. If ths s on Send, CC messages wll be sent
each tme you swtch to a dfferent preset, for both manuals.
–Sustain Pedal: select the functon to be assgned to the nternal SUSTAIN
connector:
–Rotary Speed (Latch): use the sustan pedal to swtch between rotary speeds n latched
mode, .e. the speed changes each tme the pedal s pushed and released;
–Rotary Speed (Mom.): use the sustan pedal to swtch between rotary speeds n
momentary mode, .e. hold the pedal down for slow, release for fast;
–Sustai Upper, Lower, All: decde whether to use the sustan pedal to sustan notes on
the upper manual only, or on the lower manual only, or on both manuals.
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4.4 - SNAPSHOTS
Mojo can save and recall up to 8 snapshot. A
snapshot stores the values of all edtng
parameters, and can be used to store a partcular
settng that you m ght want to recall or for
alternatng between dfferent settngs. It's lke
havng dfferent tonewheel organs at your
dsposal.
Tap the Snapshot con on the top rght of the
edtor screen f you wsh to save (the red floppy
dsk con) or recall (the green folder con) one of
the avalable shapshots. Everytme a snapshot s
recalled, s set as the default snapshot and wll
always be recalled when the nstrument s turned
on.
4.5 – PARAMETER EDITING
Tap on the lnks on the bottom bar to open the parameter pages for the organ part
and for the effect secton. Parameters are presented under the form of large
horzontal slders wth a readout value. Scroll slders left or rght to vary the values.
Scroll the page up or down to reveal the entre content. Clck the yellow ttle bars to
collapse or expand a secton.
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5. ORGAN EDIT PARAMETERS
Parameters for the organ part:
–Generator: select a tonewheel generator from ths lst. Each generator s based
on actual values as measured from real console organs of the B/C/A seres.
–Generator Shape: select between OFF (no shapng) or 3 levels of CUT and 3
levels of BOOST. These wll modfy the ampltude chart of the generator values
accordng to dfferent postons along the generator. Ths parameter does not
apply any equalzaton to the sound. Levels 1 can boost or cut startng from
wheel n. 25; levels 2 start from wheel n. 52; levels 3 start from wheel n. 72.
–Leakage: adjusts the background hum & hss.
–Crosstalk: adjusts the amount of crosstalk caused by the analog crcutry. Ths
s a very mportant element of the tonewheel organ sound.
–Xtalk Shape: snce the crosstalk conssts of both bass and treble tones, ths
parameter m xes between the presence of one or the other, left towards a
“rumble” nose, rght towards a “brllant” nose.
–Complex wheels: are specal tonewheels only used for the frst 12 tones wred
wth the pedalboard. Unselectng ths parameter wll use standard snus
tonewheels.
–Foldback on 6': the frst 16 wheels wred to the keyboards are usually folded
back, thus startng from wheel n.13 rather than from wheel n.1. If you wsh to
use the frst 12 wheels on the manuals, uncheck ths opton but you should also
uncheck the Complex wheels.
–Resistor wires: are the small wres that n the vntage organ connect the
keyboards to the generator. Ths parameter offers three dfferent values:
“Console: NEW”, as specfed by the orgnal B3 specfcatons; “Console: OLD”,
resultng n a more present low-end; “Spnet”, same as “Console NEW” but
wthout the foldback.
–Drawbar trims: the 9 parameters under ths secton can be used to adjust the
presence of each drawbar. Ths wll apply on top of the actual drawbar
regstratons for both the upper and the lower manual.
–Percussion settings: set the parameters of the percusson crcut such as the
level when t's on normal or soft, the decay tme when t's on slow or fast, the
overall level, and the loudness loss when the volume tab s set to normal.
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–Perc Paradise Mod: ths s a “hack” that causes the percusson to never decay.
What's specal n ths s that f you actvate the scanner vbrato effect, you'll
notce that the vbrato s appled to the rest of the drawbars but not to the
percusson tone.
–Other settings: here you can adjust the depth of the vbrato crcut and the m x
amount that affects the chorus settngs, plus some parameters related to the
generaton of the KeyClck nose.
–Preamp Bass / Treble: adjust the frequency response of the organ's bult-n
preamp crcutry.
Parameters for the Rotary Speaker are:
–Horn slow / fast: adjust the speed offset of the horn for when the speed s on
slow or on fast.
–Bass slow / fast: same as above but for the bass rotor.
–Horn up / down: adjust the acceleraton and deceleraton tmes of the horn for
the transtons between the slow and fast speeds. When the brake s engaged,
the power s taken off from the motor so the horn slows down untl stoppng
only drven by the centrfugal force, so the tme between fast and stop may be
longer than from fast to slow.
–Bass up / down: same as above but for the bass rotor.
–Ambience: a real amplfer stays n a real envronment causng the
m crophones to capture the sound reflectons as well as the drect sound
com ng from the speakers. Ths parameter adjusts the amount of
envronmental reflectons.
–Cabinet: adjusts the amount of resonances caused by the wooden cabnet.
–Mic Angle: adjusts the angle between the two m crophones at the horn,
rangng from 0 (both m crophones n the same spot) to 180 degrees
(m crophones at the opposte sdes of the cabnets). Ths smulaton consders
only three m crophones, two for the horn and one for the bass rotor.
–Horn EQ: not all vntage rotary speakers have the same qualty for what
concerns the sound com ng from the horn, some are brghter, some are duller
or maybe just well balanced. Ths parameter lets you adjust the treble response
of the horn sound.
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–Mid reflections: adjusts the amount of sound reflectons happenng n the
m ddle of the stereo feld.
–Doppler intensity: the so called “Doppler” effect s the fundamental of the
“Lesle” effect that causes the sound to be cyclcally untuned whle the sound
source (the speaker) gets farther or nearer to the lstened; ths parameter lets
you adjust the amount of ths effect that s mostly caused by the sound
reflectons over the walls around the amplfer.
–Dry Leak: some of the dry sound com ng from the speakers does not reach the
rotatng elements and s m xed wth the rotatng sound. Use ths parameter to
adjust the amount of dry sgnal you want to be m xed n.
–Bass Port: a real Lesle cabnet has a hole n the back that serves for two
reasons: 1) lets the heat from the motors ventlate out from the cabnet and 2)
acts as a bass tunng port, lke those found on modern speakers. If you put a
m crophone n front of ths hole you get nothng but sub-bass frequences. Use
ths parameter to adjust the amount of sub-bass you want to get nto the m x.
–Tube feedback. Ths s a very mportant parameter that works on an aspect of
the whole amplfcaton system that can drastcally vary both the dynam c
response and the frequency response, as well as have an mpact on the
overdrve. When a Lesle cabnet s set very close to the Hammond organ and s
played at a hgh volume, there's some sort of feedback between the tubes, the
transformers and the pckups of the Hammond and the speakers of the Lesle,
resultng n a sound that tends to get “fatter”, the attack s “puncher” and the
dstorton s aggressve, gvng you the feelng that some sort of energy s
loopng between the organ and ts amplfer. Now, a genune Lesle 122 or 147
s only 40W of power, but f you try to connect your Hammond organ to a 100W
gutar amp such as a Marshall JCM900 or a Fender Twn you'll notce that the
amp starts gong n feedback even f you don't play any note on the organ. Ths
s... pure analog power! Try ths parameter at small steps, t can drastcally
change the sound n both a pleasant or unpleasant way, accordng to your
tastes.
–Stop Position: you can use ths parameter to fnd a poston where the horn
and rotor should “preferably” stop when you set the speed lever n the brake
poston and the “Front Stop” opton s enabled. Please consder that not always
the poston you've set s reached wth precson, t depends mostly on the
Ramp Down tmes you've set... after all t's vrtual realty, baby! It takes nto
account the knetc energy, the gravty, the belt frcton...
–Noises: well, a real rotary effect s far from beng a quet amplfer. Your
m crophones wll pck up not only the sound but also the wnd generated by
the rotatng elements, and the relays that swtch between the fast and slow
motors. Use ths parameter to adjust the amount of audble noses.
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–Memphis Style: check ths parameter to unplug the motors that drve the bass
rotor. Ths way, the bass stays motonless whle the horns keep spnnng.
–Front Stop: ths very sought after functon causes the horn and the bass rotor
to stop always n a “sweet” spot every tme the brake s engaged. VB3-II uses a
smple algorthm that produces ths effect n a very pleasant and seamless way
that you won't even notce when you're brakng the rotors.
Notes on the rotation speeds.
All parameters n the edt pages, whenever moved, dsplay the readout value n
ether MIDI or actual value, when avalable. As for the Rotary speaker's rotaton
speeds and tmes, values are shown n Hz and Seconds. To convert Hz to RPM
(revolutons per m nute), just multply the Hz value by 60. For example, the horn,
when the Horn Slow parameter s set at 64, rotates at 0,77 Hz whch translates n 46,2
RPM. All the speed values can be vared between 50% and 150% of the center value.
The ramp up and ramp down tmes are n seconds, and can be vared between 50%
and 500% of the center value.
Center values are:
–Horn slow: 0,77 Hz 46,2 RPM→
–Horn fast: 6,9 Hz 414 RPM→
–Bass slow: 0,72 Hz 43,2 RPM→
–Bass fast: 6,4 Hz 384 RPM→
–Horn ramp up: 1 second
–Horn ramp down: 0,8 seconds
–Bass ramp up: 6 seconds
–Bass ramp down: 3,5 seconds
These tmes are average values as measured by a wde sample of well workng and
servced vntage Lesle 122, 142, 147 and 145 models. Due to centrfugal energy,
when the Rotors ramp down from fast to brake and the Front Stop opton s dsabled,
they take a bt longer to get to full stop poston.
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6. EFFECT EDIT PARAMETERS
Mojo features a bult-n hgh qualty stereo dgtal reverb that can be adjusted n a
varety of ways n order to reproduce vrtually any knd of artfcal envronment.
Reverb settngs are:
–Decay: adjusts the average reverb tal length.
–Damp: smulates varous types of reflectng walls, from tles to absorber panels.
–Diffusion: adjusts the dffuson of travelng waves across the reflectng
surfaces.
–Pre-delay: adjusts the tme between the drect sound and the early reflectons.
–Room size: adjusts the sze of the vrtual room, from a small cabnet to a large
tunnel.
–High / Low shelf: adjust the amount of treble or bass frequences to be to cut
off the sound before startng to reverberate.
Ths space ntentonally left blank.
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7. THE USB PORTS
Mojo ncludes 2 Type-A “host” USB 2.0 ports. These are manly used for
updatng the software, for fle functons, for connectng the W -F USB dongle
or for acceptng external MIDI accessores. An nterestng use for a USB system
port s the possblty to connect a “Class-complant USB-MIDI devce”, .e. one
of the many MIDI devces that don't need specal drvers when they are
connected to a conventonal computer. The Mojo wll recognze USB-MIDI devces and wll use
them along wth any other MIDI equpment connected to ether one or both the classc MIDI nputs
located on the rear panel.
Please avoid connecting unsupported devices to this port. Please note that this port can supply a max of
250 mA of current. Do 't use this port to charge mobile devices.
Orgnal CRUMAR accessores that can be connected to the SYSTEM USB ports:
–Mojopedals 2018
–G.M.LAB D9U – d--y drawbar controller
–G.M.LAB D9X – d--y drawbar controller wth extended features
–G.M.LAB MJU – d--y M d Jack USB
An addtonal Type-B USB 2.0 port s present at the back sde of the Mojo that
provdes Class-complant USB-MIDI IN/OUT connecton to your computer. Use ths
port to connect the Mojo to your computer software. No drvers are needed for
W ndows, OS X and Lnux.
8. MIDI MAP
PARAMETER NAME C.C.
NUMBER
REMARKS PARAMETER NAME C.C.
NUMBER
REMARKS
Drawbar Upper n.1 12 Volume 7
Drawbar Upper n.2 13 Drve 76
Drawbar Upper n.3 14 Reverb 91
Drawbar Upper n.4 15 Key-clck 75
Drawbar Upper n.5 16 Bass 8
Drawbar Upper n.6 17 M ddle 9
Drawbar Upper n.7 18 Treble 10
Drawbar Upper n.8 19 Vbrato Type 73 Values = 0, 25, 50, 76, 101, 127
Drawbar Upper n.9 20 Vbrato Upper Swtch 31
Drawbar Lower n.1 21 Vbrato Lower Swtch 30
Drawbar Lower n.2 22 Pedals-to-lower 55
Drawbar Lower n.3 23 Pedalboard release tme 56
Drawbar Lower n.4 24 Rotary Effect Swtch 85
Drawbar Lower n.5 25 Rotary Effect Slow/Fast 1 Values: 0 = slow, 127 = fast
Drawbar Lower n.6 26 Rotary Effect Run/Stop 68 Also sends CC#1 value 64 when speed = stop
Drawbar Lower n.7 27 Leakage 86
Drawbar Lower n.8 28 Crosstalk 87
Drawbar Lower n.9 29 Crosstalk Shape 88
Drawbar Pedals n.1 33 Percusson Level 89
Drawbar Pedals n.2 35 Rotary Speaker Balance 90
Percusson On 66 Rotary Speaker M c. Dstance 93
Percusson Soft 70 Rotary Speaker Horn EQ 94
Percusson Fast 71
Percusson Thrd 72
CRUMAR MOJO CLASSIC & SUITCASE USER'S MANUAL - Page 19/20

9. SPECIFICATIONS
Techncal specfcatons:
–power ratng: 100 ~ 240 Vac
–output level: +4 dBu
–headphone output max load: 32 ohm
–Mojo Classc dmensons: cm 95 x 55 x 17
–Mojo Sutcase dmensons: cm 94 x 52 x 17
–weght: 18 Kg
Crumar Mojo s a dgtal Muscal Instrument desgned and bult n Italy. All rghts reserved.
All trademarks used heren are the property of ther respectve owners.
Crumar s a trademark owned by:
V.M. Connecton
Va Luco Vero, 2 - 31056 Roncade (TV) - Italy
www.Crumar.t
Last update: June 2021.
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