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Crumar Organs and GSi - Crumar MOJO XT & MOJO 61 Organ Keyboards

Crumar MOJO 61 Single Manual Organ

Crumar MOJO 61 Single Manual Organ
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Crumar MOJO 61 Single Manual Organ

Price $1,499.00

Product Details for Crumar MOJO 61 Single Manual Organ

The Crumar MOJO 61 is a waterfall 61-key performance keyboard featuring 8 entirely simulated vintage instruments: tonewheel organ (VB3-II), pipe organ, Vox & Farfisa combo organs, acoustic piano, Rhodes, Wurlitzer and Clavinet electric pianos. All physical modeling, all fully polyphonic, with rotary and static amp simulations, overdrive, 3 band EQ and reverb. Weighs only 22 lbs., looks great, and sounds killer.

No, we don't want to "up the ante" or "change the game", we just want to offer you the best experience you can expect from a digital organ and electric piano simulation. And we did it, we did it the best we could. The result is the Crumar MOJO 61, a single 61-note waterfall keyboard compact digital drawbar organ and electric piano built into a sturdy yet elegant case with a practical and intuitive command panel.

The MOJO 61 uses our new DSP technology derived from the GSi Gemini and is powered by the same electromechanical organ simulation that powers the dual manual MOJO, the GSi VB3-II. Under the hood there's a load of new and innovative technology, the best you can expect from the union of modern audio processing and a classic interface. The control panel features just buttons, pots, drawbars and LEDs with clear labeling for a true what-you-see-is-what-you-get experience with no gimmicks.

Everything you need to do during your live performance is only one button away, a few inches away from your fingers. But the moment you need more, you get more. Take your wi-fi device (smartphone, tablet, laptop), use it to connect to the MOJO 61, open the editor Web-App into your preferred browser and you get total control over all sound and function parameters the MOJO 61 has to offer. Make your sound, because you know what you want, and you can have it! MOJO 61 is modeled after 22 different vintage tonewheel organs, pick the one you like better and adjust all other parameters, then save it.

And it's not only about tonewheel organ. MOJO 61 features a very expressive and rich Pipe Organ sound modeled after a classic Baroque-style organ with 8 stops plus one mixture, three couplers and the tremulant motor. Don't expect samples, don't expect polyphony limit because every sound the MOJO 61 generates is pure real-time physical modeling synthesis with full polyphony.

To complete the organ saga, MOJO 61 offers the simulation of two ever greens, the italian Compact DeLuxe and the "red tolex" Continental. Both play beautifully, magically realistic, ready to make you feel like playing the real thing.

And... it's not only about organ at all! Even if MOJO 61 features a high-quality waterfall semi-weighted keybed, it's great to have two of the most sought-after electric pianos handy right inside the unit, ready to play at the press of a button. Yes, MOJO 61 offers the physical modeling simulation of a classic Tine Piano and a Reed Piano, once again it's not about "bread and butter" additional sounds, it's indeed a very important part of the whole MOJO experience. Electric pianos are completely emulated thanks to complex math calculations, in order to offer you the most realistic feel and sound, and the exact behavior of the mechanical counterpart. If you have one of the real E-Pianos being simulated by the MOJO, we invite you to make an A/B comparison and test how realistic they are, from the very basic sound to every subtle nuance, down to the behavior of the sustain pedal, the symphatetic resonances, the mechanical noises and every other detail, everything is there where it belongs to be.

To enrich and emphasize the beauty of the MOJO sound, an essential yet complete effect section is right inside the box. What's a tonewheel organ without a great rotary effect and a tube overdrive? And how can you think to play electric pianos without a great stereo phaser or a stereo chorus? And what about some static amps for the transistor organs? Hey, don't forget the reverb! None of the effects of the MOJO are just... effects. They are indeed great effects, modeled after some of the most famous vintage stomp boxes, the best guitar and bass amps, the most complex and effective reverb algorithm and, of course, the gorgeous classic 122/147 tube rotary amps.

It's hard to believe that such a tiny keyboard can generate such a big sound! But that's the truth, that's Crumar MOJO 61.

Keyboard Magazine Review: Crumar Mojo 61


October 18, 2016

While the 61-note, single-manual Crumar Mojo 61 runs GSI’s VB3-II sound-engine software and sounds identical to the dual-manual Mojo, it adds WiFi control over editing and a pipe organ to its list of additional instruments (electric pianos and transistor organs), but it holds only two presets instead of the eight found in the dual-manual version.

Like most single-manual, Hammond-style clonewheels, the Mojo 61 can be used in dual-manual mode when connected to a second, lower-manual keyboard via MIDI. Each manual gets a single set of drawbars with two presets.

To put this in perspective, the more expensive, single-manual Hammond XK3c has two sets of drawbars and 8 presets controlled by the lower octave of reverse-colored keys, as on the original Hammond B3, C3, and A100 models. The bigger Hammond XK-5, also a single-manual instrument, has four sets of drawbars—two for the upper and two for the lower manual, as well as the octave of reversed color preset-keys. Personal preferences determine which is best for a player, but I’m happy to shed the extra weight and size that the reversed keys bring. As long as I have a set of drawbars that I can tweak on-the-fly and a few presets, I’m good. The Mojo 61’s set up is similar to what you find in the Nord Electro and Hammond SK1.

One of the first things I noticed about the Mojo 61 is that the keyboard has a shorter throw (the angle from resting state to the bottom of the key bed) than other clonewheels I have played. Consequently it reacts more like a traditional Hammond, which had the effect of making my playing sound more like I was using an original instrument.

The VB3-II sound engine has become one of the most respected Hammond emulations available, and its built-in Leslie simulator has a level of B3-ness that is not apparent in other clonewheels. There’s more “girth” to the sound, and it especially jumped out when I added percussion. The Leslie emulation includes drive, Fast/Slow/ Stop control, and the typical chorus/vibrato effects. The master volume and drive knobs are shaped like level controls on a vintage Leslie, which is a nice touch.

When I bypassed the internal Leslie sim and ran the Mojo 61 through an original Ventilator Leslie sim, as well as a Speakeasy Vintage pre into a Leslie 45, each of these setups sounded even more realistic. But what it all comes down to is a combination of nuances that, when taken together, produce what is a damn-near real B3 experience on the Mojo 61: It’s the tone combined with keyclick, as well as details such as leakage, crosstalk, and resistor-wire age, that give this engine its own mojo and realism, while stripping away the sterility that some digital B3 emulators provide. And, as you will see below, all of this is tweakable so you can dial in your personalized variations in character.

Vintage Keys

However, the Mojo 61 is more than just a Hammond Wanna-B(3). You also have access to two transistor-style organs—Combo F offers a Farfisa sound, Combo V has the Vox character—while Pipe emulates a 776-pipe Baroque-style organ. Each of these organs gives you plenty of nuance and detail.

The Mojo 61’s electric pianos include Tines, a Rhodes emulation, and Reed, which is based on the Wurlitzer sound. As you would expect, the pianos include instrument-specific effects such as tremolo, auto-pan, ring modulation, stereo phase and chorus, reverb and an amp simulator. For the latter, Crumar provides models of the Vox AC30, Marshall JCM-800, Fender Twin, and Roland Jazz Chorus amplifiers, each with their own adjustable 3-band EQ. It would be nice if you could access tremolo speed for the electric pianos from the front panel, as well as overdrive the amp simulations to add a little crunch. And I wish I could run all of these through the internal Leslie emulator.

Overall, the Rhodes and Wurlie are very good emulations, and in combination with the effects are especially usable. Of the two, the Rhodes is my favorite, providing a good bit of complexity and lots of tone variation when using WiFi to edit parameters (see below). The Wurlie isn’t bad; it’s just not as dynamic, in my opinion, as some dedicated romplers. Both transistor organs do a fantastic job re-creating the sound you’re looking for when covering Animals and Doors tunes.

WiFi Tweaking

Aside from the front panel controls, the Mojo 61 uses WiFi to provide the user with deeper parameter control. As a result, there is no need to navigate levels of menus to alter settings and customize the instrument.

Pairing the Mojo 61 to an iPhone is a breeze: Under settings, select MOJO as if it was a network, enter a pass code, type Mojo/ into the browser, and you are in. Now, all of the features under the hood are revealed, and every parameter is easily accessible with an additional push of a button.

The result of this connectivity is that making changes to a patch is simplified, which is exactly what you want in stressful situations such as on the bandstand or in the studio. For example, at home before a club gig with the funk/soul band Family Style, I went through every parameter and got what I thought would be the organ sound I would need. But as it typically happens, I got to the gig and the organ I chose beforehand in the generator selector (a 1970 A100) wasn’t exactly right for the setup. I needed something a little more mellow in the high register. So between songs, I got out my phone, opened my browser and seamlessly switched to the default VB3CE2 (Standard) organ; then, I hit Save All—easy, fast and intuitive.

In the editor, every parameter is at your fingertips and no more than one menu selection away. Here, you can choose between 21 different Hammond models ranging from late ’50s though early ’70s vintage—B3s, C3s, A100’s, as well as an A101, A102 and A105. There is a selectable generator shape (essentially EQ curves applied to the tone wheels) and variable amounts of leakage and crosstalk with crosstalk shape. You can also adjust for the age of the resistor wires (which makes the organ sound old or new), program tonewheel complexity, and turn Foldback on or off. Plus there is a trimming control available for each drawbar, and a deep assortment of percussion, chorus/vibrato and Leslie parameters—all available through the wireless connection. (It would be nice if all these parameters were listed on the Crumar website.)

Note that the parameters for the transistor organs are not adjustable via WiFi. Everything you need for them is accessible on the front panel.


With the Mojo 61, Crumar has done an outstanding job emulating the feel, sound and general vibe of a traditional tonewheel in a single-manual instrument. With the tone of the organ provided by the VB3-II engine, plenty of editable parameters, and a keyboard that feels so authentic, it’s almost like having a Hammond custom shop in a box.

The WiFi capability is simple and powerful. And the additional instruments are gig-worthy and present a good case for bringing a single keyboard on gigs where you only need these six commonly used sounds. Hats off to Crumar for entering into a crowded market of strong competitors and creating a killer product. I’m off to a show tonight and, yes, the Mojo 61 will be in hand!

Snap Judgment

PROS Authentic feeling keys. Includes EPs and other organs, plus effects. Wireless control over editing. Supports a second manual via MIDI.

CONS Only two presets. Cannot send all instruments through virtual Leslie effect.

Bottom Line

A solid contender for a single-manual clonewheel, with additional instruments for the gigging musician.

Crumar MOJO 61 - front

Crumar MOJO 61 - left front

Crumar MOJO 61 - right front

Crumar MOJO 61 - left closeup

Crumar MOJO 61 - right closeup

Crumar MOJO 61 - back

Other products you might like:
GSi Gemini - DMC-122 Expander, Desktop and Rackmount Dual DSP Sound Modules, Organ Grinder - Overdrive, Tall & Fat

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