Tip-Top Audio

An extremely high-quality stereo voltage controlled effects module. Combined with Vahalla Shimmer, Halls of Vahalla, or one of the many other ZDSP cartridges to create some of the best eurorack reverbs available, along with many other great effects.

In a recent update, the Z-DSP (NS) got an all new design of its analog circuitry, contributing to a lower noise signal path, clearer sound of the entire frequency range, lower distortion and better immunity to noise emitted by other modules sharing the same power supply. A new analog dry/wet circuit has been implemented to remove the 3db gain drop when the mix knob passes through the center of the dial making the use of this function more practical in a live application. A reverse polarity protection has been added as well. The new front-panel matches Tiptop’s colorful design, and a single printed circuit board and surface mount technology improve reliability during production and use. The powerful Z-DSP engine remains the same as the original Z-DSP module and all cards are compatible across both versions.

The Z-DSP is an open-source, cartridge-based, digital sound processing and generating platform for your modular synthesizer. The Z-DSP has a stereo DSP processor with 24-bit sampling, 15khz of bandwidth, smooth voltage controlled parameters, and has the ability to be programmed - all in a Eurorack format. While the Z-DSP cannot compete with the processing power found on personal computers, it does provide direct control of the DSP hardware and has a unique set of features aimed at the manipulation of digital effects. With the Z-DSP, digital audio can be bent, stretched, deformed, and distorted by interacting with your modules; something personal computers just can't do.

The Z-DSP interface includes VC digital parameters, VC Mix/Dry, manual and sequential program switching, and a pair of VC feedback loop paths with exposed patch points that let you insert the rest of your modular into the DSP process. The Z-DSP lets you go far beyond ordinary processing, breaking the rules and allowing you to patch right into the heart of the DSP chip through the clock input, allowing for some digital madness and creative sound design.

Important: all functionality of the Z-DSP depends on the software-containing “cartridge” you insert into the front panel. Various cartridges are available. Ships with Halls of Vahalla cartridge an excellent source of multitap delays and other delay effects-See manufacturer for more information.


  • A powerful stereo DSP-based effects processor for your Eurorack rig
  • Interchangeable DSP cartridges let you swap out effects algorithms
  • Extensive I/O accommodate advance patching and parameter control
  • Program sequencer lets you automate program changes
  • Voltage-controlled clock makes it easy to manipulate delay times
  • Includes Dragonfly Delay cartridge with 8 onboard delay algorithms, Halls of Valahalla Reverbs


130 mA +12V
36 mA -12V
0 mA 5V
59 mm deep