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Bastl Instruments Kastle ARP

Item: SYN0008802-000
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The Kastle ARP from Bastle Instruments is a pocket-sized patchable synthesizer with a unique melody generator.  All product info

€ 135.00
incl. VAT, incl. Shipping Costs
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Product information - Bastl Instruments Kastle ARP

Patchable mini synthesizer

  • Mini modular system
  • Sine wave oscillator with quantized pitch
  • 8 octaves pitch range
  • Timbre mix or waveshaper
  • CHORD CV switches between 3 chords
  • Decay envelope with CV input
  • Triggerable pitch with negative decay to achieve melodic intervals
  • BASS output with root note of the chord
  • Voltage controllable Clock with square and triangle output
  • Stepped CV generator with random, 8-step and 16-step loop mode
  • 2 I/O connectors for connection to other equipment (e.g. Eurorack)
  • Lineout and headphone jack in one
  • Power supply: 3x AA batteries or USB (both sold separately)
  • incl. 10 patch cables

Kastle ARP - Fun Melody Generator

Bastl Instruments Kastle ARP Synthesizer at a Glance:

The Kastle ARP from Bastle Instruments is a pocket-sized patchable synthesizer with a unique melody generator. The tone generation is based on a quantized sine wave oscillator with a digital waveshaper. As an alternative to Waveshaper, the timbre control can be used to mix between sine waves and 8-bit chiptunes. The pitch selection uses simple concepts to create a surprising complexity; "melody mill" is the best way to describe it. The quantized oscillator is always perfectly tuned, and the pitch can be selectively modulated via the NOTE and CHORD inputs. The decay envelope adds variety by occasionally skipping pitches before triggering again. The voltage-controllable LFO generates square and triangle waveforms. Additionally, the bass output plays the root of the current chord, enhancing the overall sound. The Kastle ARP is definitely a small experimental box for musicians who want to be guided by the result or just listen to the playful, self-generated sounds.


  • Manufacturer: Bastl instruments
  • Construction / Number of Keys: Desktop without keyboard
  • Sound Generation: Digital
  • Number of Knobs: 7
  • Headphone Connection: Yes
  • LINE OUT: Yes
  • incl. Power Adapter: No
  • Weight (kg): 0.3
  • Batteries Included: No
  • Polyphony: 1
  • Power Supply: Battery, USB
  • Width (cm): 7
  • Height (cm): 5
  • Depth (cm): 6
Bastl Instruments Kastle ARP Product ImageBastl Instruments Kastle ARP
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