Erica Synths Bullfrog

Desktop Synthesizer

CAP2: 42917.0
£499.00 £515.00
£415.83 ex VAT
in stock

Collaborative venture between Erica Synths and Richie Hawtin and an outstanding educational electronic music instrument designed to inspire users of all experience levels. Its mission is to seamlessly blend the allure of electronic music production with a comprehensive learning experience. The instrument features a fully analogue design with a highly precise voltage-controlled oscillator (VCO), offering versatile sound generation capabilities. Users enjoy unprecedented control over soundscapes thanks to manually adjustable and voltage-controlled waveshapes, a Zener diode-based noise generator, and a resonant lowpass voltage-controlled filter (VCF). Additional features include a voltage-controlled amplifier (VCA), delay effects, looping envelope generators (EG), and a Sample and hold circuit for creative exploration. Bullfrog's expandability, voice card slot, built-in speaker, and integration options make it a versatile tool for music creation. Furthermore, it functions as a classical subtractive synthesizer, fostering an understanding of sound design principles through modular connections and voice cards.

At a glance

  • Bullfrog boasts a fully analog design, ensuring an authentic and rich sonic experience.
  • Its highly precise voltage-controlled oscillator (VCO) covers an impressive 8 octaves, offering both precision and versatility in sound generation.
  • Users have full control over waveshapes with manually adjustable and voltage-controlled options, including the distinctive sine-shark fin and pulse wave with pulse width modulation (PWM).
  • The instrument offers sonic diversity with a Zener diode-based noise generator and a resonant lowpass voltage-controlled filter (VCF).
  • Users can finely tune their sound with the voltage-controlled amplifier (VCA) equipped with adjustable offset and explore delay effects with customizable delay time and feedback.
  • Bullfrog provides two looping attack-sustain-release envelope generators (EG) for precise sound manipulation.
  • Add complexity to your compositions with a dedicated Sample & Hold circuit featuring an individual clock.
  • Real-time sound manipulation is at your fingertips with a manual gate button.
  • Unlock endless possibilities through the voicecard slot and enjoy the convenience of a built-in speaker for mobile creativity.
  • Seamlessly integrate into your music setup with DIN5 MIDI input and a USB connector.
  • The compact design of Bullfrog, with dimensions of 40 x 385 x 210 mm and a weight of 1.8 kg, ensures portability.

The Erica Synth Bullfrog is a collaborative endeavour between Erica Synths and Richie Hawtin. It represents an exceptional educational electronic music instrument meticulously crafted to captivate and inspire users, irrespective of their experience level. Its central mission revolves around seamlessly merging the allure of electronic music production with a comprehensive and enriching learning experience.

At the heart of the Bullfrog's capabilities lies its fully analogue design, assuring that every sonic output resonates with authenticity and depth. Whether you're a newcomer to the world of electronic music or an accomplished professional, the instrument's highly precise voltage-controlled oscillator (VCO), spanning an impressive 8 octaves, is a testament to precision and versatility in sound generation.

The Bullfrog empowers musicians and enthusiasts with unparalleled control over their sonic landscapes. Through manually adjustable and voltage-controlled waveshapes, including the distinctive sine-shark fin and pulse wave with pulse width modulation (PWM), your creative sonic explorations are boundless. Moreover, a Zener diode-based noise generator and a resonant lowpass voltage-controlled filter (VCF) provide the tools to craft intricate and textured soundscapes.

Bullfrog offers an array of features for those inclined to infuse their musical compositions with nuance and depth. A voltage-controlled amplifier (VCA) with adjustable offset and the capacity to delve into delay effects, featuring customisable delay time and feedback, are readily available. The instrument boasts two looping attack-sustain-release envelope generators (EG), granting you precise control over the dynamics of your sound.

Bullfrog incorporates a dedicated Sample & Hold circuit equipped with an individual clock to elevate your sonic journey to new heights of complexity and intrigue. Real-time sound manipulation becomes effortless with a manual gate button, allowing for on-the-fly creativity and experimentation.

The Bullfrog's expandable nature unlocks doors to limitless creative possibilities. Featuring a voice card slot and complemented by a built-in speaker for on-the-go musical exploration, it facilitates adventures beyond the ordinary. Furthermore, the instrument seamlessly integrates into your existing music setup with DIN5 MIDI input and a USB connector, enhancing its versatility and adaptability.

Compact and portable, Bullfrog's dimensions (40 x 385 x 210 mm) and weight (1.8 kg) render it an ideal companion for music creation, wherever and whenever inspiration strikes.

Fundamentally, Bullfrog operates as a classical subtractive synthesiser, consisting of various "modules" for sound generation (VCO, NOISE GENERATOR) and sound treatment (VCF, VCA/DELAY). Additionally, it includes "modules" dedicated to generating control and modulation signals for these components (ENVELOPE GENERATORS and SAMPLE & HOLD). It's crucial to note that Bullfrog does not generate sound until these "modules" are connected, either through eurorack patch cables or by inserting voice cards, which create internal connections between the "modules" in predetermined ways, offering additional functionalities such as sampler/looper, sequencer, or groovebox. This approach enhances comprehension of subtractive synthesizer functionality and sound design principles.


What’s included:

  • BULLFROG synthesizer
  • Universal 12VDC wall wart adapter
  • User manual
  • 10 patch cables
  • 3 pre-patched voice cards: Sequencer, Acid Bassline, Sampler Looper
  • 3 DIY voice cards
In order to provide a well-rounded understanding of the functionality of this synthesizer and sound synthesis in general, a comprehensive user manual is created to accompany the learning process."

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