THE ULTIMATE TONEWHEEL ORGAN EXPERIENCE USER'S MANUAL Firmware version 1.00 www.Crumar.
Congratulations for purchasing your new Crumar Mojo Desktop. We are confident that this instrument will be the perfect expansion to your live and studio setup, as well as to your musical inspiration. Read through this useful manual to explore its capabilities and, most importantly, have fun! 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.
WARRANTY – Crumar Mojo Desktop 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. CHAPTER SUMMARY: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.
1. THE SOUND OF MOJO DESKTOP VB3-II virtual tonewheel organ The Crumar Mojo Desktop is the perfect hardware counterpart of the most acclaimed tonewheel organ simulator virtual instrument known as GSi VB3-II. It reflects the exact same sound engine, with the same parameter set, mostly the same functions (considering the difference between a software and an hardware instrument), and can even exchange the same Programs and Banks of programs.
2. THE COMMAND PANEL In this chapter we get familiar with the command panel of the Mojo Desktop. Most of the sound editing is done via the large color display in the middle of the panel, while real-time performance commands are directly available on the panel under the form of large buttons and knobs for an easy reach while playing music. 2.1 - KNOBS From left to right, you have the volume, bass & treble equalization, keyclick volume, overdrive level, and digital reverb level.
2.2 - VIBRATO/CHORUS Just like on the keyboard version of the Crumar Mojo, and like on a vintage tonewheel organ, there are two large buttons for turning the effect on or off on the upper or on the lower manual independently, and a large knob that lets you choose the type of effect to use between the 6 possible combinations: V1, C1, V2, C2, V3, C3 whereas the 'V' produce just a vibrato effect and the 'C' produce a chorus effect.
3. THE REAR PANEL All connections are found on the back panel of the Crumar Mojo Desktop. From left to right, on the upper row we find: – Swell Pedal input: this is a TRS Jack that receives an expression pedal with a 10K to 50K linear potentiometer. This is mainly used to modulate the “Swell” (expression) pedal of the tonewheel organ. – Foot Switch input: this is a TRS Jack that receives Crumar's dual foot switch used for switching the Rotary Simulator effect speeds.
4. DISPLAY PAGES 4.1 - HOME PAGE The Home Page shows, from top to bottom: – – – – the Program number and name all drawbar positions values of all six knobs soft-buttons for going to the GLOBAL settings or to the EDIT page Tap on the Program number in the top left corner to access the keypad page, where you can insert a number between 0 and 127 to recall the desired Program. Tap on the Program name to access the Program list that you can scroll up and down to reach the desired Program.
4.4 - EDIT PAGES Tap on the EDIT soft-button in the bottom right corner of the home page to reach the main EDIT menu page. Here you can tap on the EDIT ORGAN button to access the parameter list dedicated to the organ part, or EDIT EFFECTS to access the parameter list dedicated to the effects. To generate an initialized Program, tap the INIT button on the top right corner. Tap BACK to return to the previous page.
4.6 - PROGRAM WRITE First, you should give your Program a name. Use the QWERTY keyboard for this, just like you normally do with a smartphone. To change the cursor position, tap on the text field in the desired position or use the VALUE encoder. Tap on the 123 button to switch to the numbers & symbols page, use the SHIFT button to switch to capitals. Tap on BACK if you changed your mind and need to continue editing, otherwise tap on DONE to proceed with the next page.
5. GLOBAL SETTINGS The list includes the following items: – Tuning A=Hz; This is the global tuning, where the reference A note can be set to a frequency between 430 and 450 Hz. The default value is 440 Hz. – MIDI Channel selection for Upper, Lower and Pedalboard. The default values are, respectively, 1, 2 and 3. These can be set on any channel between 1 and 16. Settings two ore more manuals on the same channel will cause them to play simultaneously when that channel is received.
6. FILE OPERATIONS The Crumar Mojo Desktop supports any USB flash drive formatted with the FAT32 filesystem. If you have bought a new drive, you don't need to format it. If you are a Mac user and need to format an existing drive, make sure you're formatting it using the FAT32 filesystem. Every file function assumes that the drive is connected to one of the two System USB ports on the back of the instrument. If the drive is not present, the display will pop up an alert window. Import Program.
7. ORGAN EDIT PARAMETERS – Generator: select a tonewheel generator from this list. Each generator is based on actual values as measured from real console organs of the B/C/A series. – Generator Shape: select between OFF (no shaping) or 3 levels of CUT and 3 levels of BOOST. These will modify the amplitude chart of the generator values according to different positions along the generator. This parameter does not apply any equalization to the sound. Levels 1 can boost or cut starting from wheel n.
8. EFFECT EDIT PARAMETERS Parameters for the Spring Reverb are: – Level: adjust the volume of the spring reverb which is always positioned before the Rotary effect, and does not exclude the Digital Reverb, which is positioned after the Rotary effect. – Timbre: adjust the frequency response of the reverberated sound according to your taste. In real life, different types of spring reverb tanks give different timbres. – Decay: adjust the length of the reverberation.
– Horn EQ: not all vintage rotary speakers have the same quality for what concerns the sound coming from the horn, some are brighter, some are duller or maybe just well balanced. This parameter lets you adjust the treble response of the horn sound. – Mid reflections: adjusts the amount of sound reflections happening in the middle of the stereo field.
– Noises: well, a real rotary effect is far from being a quiet amplifier. Your microphones will pick up not only the sound but also the wind generated by the rotating elements, and the relays that switch between the fast and slow motors. Use this parameter to adjust the amount of noises you want to get into the mix. – Memphis Style: check this parameter to unplug the motors that drive the bass rotor. This way, the bass stays motionless while the horns keep spinning.
Mojo Desktop features a built-in high quality stereo digital reverb that can be adjusted in a variety of ways in order to reproduce virtually any kind of artificial environment. Reverb settings are: – Decay: adjusts the average reverb tail length. – Damp: simulates various types of reflecting walls, from tiles to absorber panels. – Diffusion: adjusts the diffusion of traveling waves across the reflecting surfaces. – Pre-delay: adjusts the time between the direct sound and the early reflections.
9. THE USB PORTS The Mojo Desktop includes 2 Type-A “host” USB 2.0 ports. These are mainly used for updating the software, for file functions or for accepting external MIDI accessories. An interesting use for a USB system port is the possibility to connect a “Class-compliant USB-MIDI device”, i.e. one of the many MIDI devices that don't need special drivers when they are connected to a conventional computer.
10. MIDI MAP PARAMETER NAME C.C. NUMBER REMARKS Volume 7 Drive 76 Reverb 91 Key-click 75 Bass 8 Middle 9 Treble 10 Drawbar Upper n.1 12 Drawbar Upper n.2 13 Drawbar Upper n.3 14 Drawbar Upper n.4 15 Drawbar Upper n.5 16 Drawbar Upper n.6 17 Drawbar Upper n.7 18 Drawbar Upper n.8 19 Drawbar Upper n.9 20 Drawbar Lower n.1 21 Drawbar Lower n.2 22 Drawbar Lower n.3 23 Drawbar Lower n.4 24 Drawbar Lower n.5 25 Drawbar Lower n.6 26 Drawbar Lower n.
11. SPECIFICATIONS Technical specifications: – power rating: 9 ~ 12 Volts DC 2000 mA – output level: +4 dBu – headphone output max load: 32 ohm – dimensions: cm 23 x 23,5 x 9 – weight: Kg 1,7 Crumar Mojo Desktop is a digital Musical Instrument designed and built in Italy. All rights reserved. All trademarks used herein are the property of their respective owners. Crumar is a trademark owned by: V.M. Connection Via Lucio Vero, 2 - 31056 Roncade (TV) - Italy www.Crumar.it Last update: April 2020.
