Imagine a synth so tiny it fits in your pocket, yet packed with enough hybrid synthesis power to conjure melodies, harmonies, and glitchy chaos from thin air— that's the magic of this pocket-sized alchemist from the Kastle 2 series.
At its heart, four digital oscillators drive five morphing synthesis modes—Filter, FM, Supersaw, Hypersine, and Glitchnoise—blended with techniques like FM feedback, raw waveform mixing, ring mod, track-and-hold, stereo noise, and a transient shaper, all filtered through a stereo filter. Hands-on controls include Pitch for ±3 octave sweeps, Timbre for broad tonal shifts refined by Ratio detune, plus attenuverters for Pitch Mod and Timbre Mod, an internal LFO with triangle and pulse waves, and an Envelope macro that ties it all together musically. A dual FX chain adds delay on one side and switchable chorus, flanger, or distortion on the other, processing stereo audio at 44kHz/16-bit; patch in stereo signals via the 3.5mm input (up to +12dB gain, 6Vpp), route through effects or mix to the headphone-driving stereo output, and sync everything with analog clock in/out or USB MIDI for notes, CCs, and sequencing. The built-in pattern generator spits out programmable CV/Gate and rhythms via web app, with tap tempo and scale quantization for instant inspiration. Measuring just 95x70x45mm and weighing 132g, it runs on three AA batteries or USB-C, and comes with 10 patch cables for semi-modular patching fun.
Players love how it punches way above its size, delivering surprisingly rich paraphonic textures and endless tweakability for portable jams, though some note the monophonic core means layering patches for fuller sounds. It's a perfect gateway into Bastl's clever, battery-powered ecosystem.