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tiptop audio
z-dsp (with dragonfly delays card)

price : $355.00

Z-DSP with Dragonfly Delays Card

dragonfly delay mkii card

price : $65.00

Dragonfly Delay mkII Card
bat filters card

price : $65.00

Bat Filters Card
grain de folie granular card

price : $75.00

Grain de Folie Granular Card

time fabric pitch shift card

price : $75.00

Time Fabric Pitch Shift Card

clocked delays card

price : $65.00

Clocked Delays Card

chorus card

price : $65.00

Chorus Card

spring waves card

price : $75.00

Spring Waves Card

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.

click here to download the z-dsp user manual.

about the bat filter:
the bat filters card is a collection of 8 voltage controlled digital filters (vcdf).

compared to their analog cousins, digital filters are precise and deep. they can remove or pass selected harmonics smoothly or aggressively depending on how they're configured. the result is special character that brings a whole new sonic dimension to the analog modular synthesizer.

the bat filter algorithms are based on the chebyshev filter topology. they're pumping at low frequencies, smooth and pleasant at mid range, and aggressive up top as the audio frequency gets closer to the dsp sampling rate. one of the biggest advantages of digital filter design is the ability to cascade filters with no gain loss or added circuit noise like with analog filters. this results in filters with up to 8poles, a slope of 48db!! that's equivalent to having four 12db analog filters in series, yet maintaining a clean, strong signal at the output.

the bat filter contains the following algorithms:
program - a dual stereo 8pole low pass filter. each filter has a separate cutoff on the z-dsp with common resonance.
program - dual 8pole band pass
program - 4pole high pass / low pass in series
program - 8pole high pass / band pass in series
program - 8pole triple band reject (notch filters)
program - 8pole high pass / band reject in series
program - stereo resonator, a unique dynamically varied structure of filters creating a powerful resonator with stereo spread control, ideal for pads and drones
program - stereo 8pole high pass filter with stereo spread control

Analogue Haven