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 SQK One by Evil Turtle Productions is a Virtual Instrument Audio Plugin and a Standalone Application. It functions as a VST Plugin, a VST 3 Plugin and a Standalone Application.
Product SQK One
Developer Evil Turtle Productions
Price (MSRP)
$35, =
Type / Tags Synthesizer80sFM Synth
Plug-in, App & Soundware Format(s)
Operating System Availability
Download Released
Downloads Released
System Requirements
- Windows XP/Vista/7/8/10
- Pentium III 1000MHz or better
- 256MB RAM or more
- Any VST2 or VST3 compatible host application (DAW)
Downloads Released
System Requirements
- Mac OS X 10.8 or higher
- 500MB RAM or more
- VST2 host (32-bit or 64-bit)
Audio Demos
Miscellaneous Information
Copy ProtectionNone

The SKQ-01 is a more extreme take on FM synthesis, offering 9 different waveforms as well as PWM (Pulse-Width-Modulation) and allows you to create anything from trippy FM pads to the most noisy and loud bass lines.

Besides the FM synthesis mode the synth can also be switched to a normal synthesis mode so that the two oscillators can be layered, for a nice full sound which lends itself for things such as massive pads.

There are two oscillators/operators giving 16 note polyphony. Each of these has it's own waveform, detuning and ADSR envelope.
The second oscillator/operator has PWM which can be used both in FM as normal synthesis modes.
The synth also features an analog emulation of a low-pass VCF with plenty of resonance available, which can be controlled with a separate AR envelope as well as an LFO.

For further shaping of the sound there is a distortion, stereo chorus and reverb effect build in. For extra dynamics in your playing Portamento and Pitch Bend can be used.

Patches and banks can be saved and loaded from within the plugin.

Latest User Reviews Average user rating of 3.00 from 2 reviews

Reviewed By MPONE
September 7, 2018

This synth is off to a great start. Despite how simple it looks, it can create an extremely large variety of sounds and tones. It's has its own kinda take on FM, but is as easy to use as a standard subtractive synth. The developer is highly responsive to communication. I gave it five stars because I think with a few more features it can grow into a great synth for a pay-what-you-want offering and because the developer is so responsive.

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Reviewed By Nezzerk
May 17, 2018

crashed MuLab every time I tried to use it. Emailed Evil Turtle. Nice quick response asking what version of MuLab I use then nothing, Lucky it only cost $6 or I'd be really annoyed.

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Average user rating of 3.00 from 2 reviews

Evil Turtle Productions
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