KQ Dixie is a 6-Operator FM synthesizer that is modeled on the synthesizer which appeared on the 1980s. This app can extend my Piano Modoki app.

FM synthesizers make sounds with Frequency Modulation.
FM brings rich and brilliant sounds which are impossible to create with analog one.
It makes very complex waves with simple modulations.
The same method is used for radios.
The synthesizer gained much popularity in the 1980s.

This app lets you make sounds freely with 156 voice parameters.
Almost all parameters but multi-timbral, filter, and delay are compatible with DX7.

No guarantee with 32-bit devices. (It probably works.)
*** There are some UI issues on iPhone 4S. ***
Audio Unit v3 compatible. Multiple-Out is supported when you use "KQ Dixie Multi".
Audiobus compatible.
Inter-App Audio compatible.
32 algorithms included.
You can manage the hardware DX7 when it is connected with external MIDI cables.
Supports DX7 System Exclusive Messages (SysEx) and syx files.
Supports Zip files. Place Zip files at the app folder instead of extracting them.
Supports micro tuning. The app can load Anamark tuning files (TUN).
Supports external and virtual MIDI.
You may be able to find a lot of patches on the internet.
Multi-timbres and Unisons functions are there.

Yamaha DX7 is a trademark of Yamaha Corporation.
I have no business relations with Yamaha.

If you encounter a bug, please send me your Dixie Performance file.

What’s New

Version 2.4.8

The previous Audio Units are deprecated. This is because they fail validation in Logic Pro and MainStage. I plan to keep them for compatibility, but please attention.
This app may work on Apple Silicon Mac although I don't have the new machine yet.

Version 2.4.8:
Fixed a crash bug.

Version 2.4.7:
Added support for iPad portrait screen.
Fixed the appearance on iPad without a home button.
Optimized process.
Stop supporting 32bit architecture.
Required iOS 10.0 or above.
Other fixes.

Ratings and Reviews

4.8 out of 5
74 Ratings

74 Ratings

The Virtual Keyboardist ,

Excellent DX7 FM emulation

I am a professional keyboardist who uses iOS soft synths exclusively in live performances and studio work. I am also a sound designer and create my own sounds. I don’t use presets. I’ve been needing an excellent DX 7 emulator to properly create 80’s style synth patches, and I’m thrilled to now have one. The learning curve on this one for a programmer is difficult if you’re not used to FM synthesis, and the fact that the user manual is not in English can be a challenge...BUT... The emulation is so similar to the DX7 that you can learn what you need by reading a Yamaha DX7 manual (find PDF online). I’ve already created several patches and am using those to replace my previous sounds created using other types of synths. I see reviews with certain requests...but some may be missing the point that this is a pretty accurate emulation...with the benefits of the original and some of the “flaws” of the original. Example: I love that this uses only sine waves in its operators. Other FM synths use sine plus more complex wave forms. They sound great, but the DX7 only used sine waves and therefore so does KQ Dixie. Fantastic development work here.

JRSIV1975 ,

80’s DX7 mojo is here, but this outstanding synth is capable of so much more.

Yamaha’s DX7 digital synthesizer was EVERYWHERE in the 1980’s. It’s FM digital synthesis was capable of very unique sounds. Although because of the great difficulty programming the original hardware units, most everyone just used the presets. Those 32 original voices are here too, and have their charm, but the real draw to Dixie is that the thousands upon thousands of voices & patches created by DX7 users over the past 30 years are compatible with the app! Google DX7 patches (sysex format), download the patch or a .zip of patches, import into Dixie via the Files app. That easy. Plus if you want to create new custom patches, I’ve never seen an FM synth that made patch editing easier to grasp. There’s plenty of effects and controls are easy to read & interact with. This app could be 10x more expensive and it’d be well worth it. Highly recommended.

Nosidel Montesino ,

what can i say

well i got all the Auv3 in the app store starting up from the must expensive to the must cheapest auv3 in the app store , and even though Kq Dixie is on the cheap side, i got to say that KQ Dixie its one of a few top synth in the app store, the sound quality is one of the best with its nice warm analog tone and texture, great for sound designing even though im not a sound designer, but at the same time there is thousands of presets that you can find for free in the web and all of them sounds great which is a mayor plus, so yes i really recommend KQ Dixie as a most have for beginners and pro producers because i can guarantee that KQ Dixie will be one of your must used app/auv3 in your projects.. and with that i want to give a BIG THANK YOU to the developer of this great wonderful synth app 👏🏻👏🏻👏🏻👍🏻

App Privacy

The developer, Ryouta Kira, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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