Superbooth 24: Percussa XMX, the small brother of the SSP DSP Eurorack module

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Superbooth 24: Percussa XMX is the small brother of the uber-powerful Super Signal Processor (SSP) DSP eurorack module. 

One if not the strongest Eurorack module that has ever come onto the market is the Super Signal Processor (SSP) from Percussa. This powerful module from Bert Schiettecatte is basically a super computer for the Eurorack. Out of the box it has many algorithms installed, from oscillators, filters, effects, and more.

Unlike other DSP modules, it can host everything at the same time. Plus, it offers the ability to load Linux VSTs and more. The price of $2000 is a big downer of the module. For Superbooth 24, Bert from Percussa is bringing back a former project in a completely new version. It’s the little brother of the SSP, the XMX.

Percussa XMX

Percussa XMX

The upcoming XMX module (28HP) is the smaller brother of the successful SSP eurorack DSP module. According to Percussa, the aim is to make this platform more affordable to a wider audience. 

Like the SSP, the XMX offers plenty of functionality in one module: it’s a digital modular synth with a built-in patching system, a multi-channel direct-to-disk recorder/sampler/playback engine, a multi-channel audio interface, and more.

Hardware-wise, it has a quad-core ARM A35 CPU @ 1.3GHz running Linux (64-bit) with various front panel controls, a screen, USB, and CV/gate connectivity. In detail: it offers:

  • 8 audio/CV/trigger inputs, +/-5V
  • 2 audio/CV/trigger outputs, +/-5V
  • stereo headphone output with analog volume control
  • 10 function keys with soft touch and silent action
  • USB-2.0 host and devices ports
  • expansion connector w/ I2C port…
  • MPE support

Percussa XMX module

In terms of features, the Percussa XMX is almost as powerful as its big brother. For example, it comes with almost all the modules of the original.

Including 3D wavetable oscillators, granular, 8-channel sample player, stereo reverb, step sequencer, physical modeling drum/membrane, quad virtual analog (SVF) filter with HP/BP/LP/PK/NT, macro module, and more.

Nice, the XMX uses the same preset format as the SSP. So users can build and save patches on the XMX and exchange patches with SSP users.

Further, it also supports the open source plugin SDK as available for the SSP, which 3rd party developers can use to develop their own plugins. As a reminder, it’s a Linux-driven platform so you can run your own software or even VST plugins on it.

Additionally, The Technobear, one of PERCUSSA’s active community members and SSP users, has developed an alternative firmware for the XMX called Trax, which he plans to release over the coming months. This also includes plugins he developed that will run on XMX module.

First Impression

I am very pleased that the little brother of the SSP is now becoming a reality. It took a few years but now it’s here. I really like the features. 

The Percussa XMX will be available through PERCUSSA’s website at an introductory price of $499, starting on May 16th, the first day of Superbooth 2024. PERCUSSA plans to begin shipping the XMX in early July. Percussa will have a booth (W230) at Superbooth 24 this week.

More information here: Percussa

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