Features
- Fully analogue design
- Highly accurate voltage controlled oscillator (VCO) that tracks great over 8 octaves
- Manually adjustable and voltage controlled waveshapes – sine-shark fin and pulse wave with pulse width modulation (PWM)
- Zener diode-based noise generator
- Resonant lowpass voltage controlled filter (VCF)
- Voltage controlled amplifier (VCA) with adjustable offset
- Delay effect with adjustable delay time and feedback amount
- Two looping attack-sustain-release envelope generators (EG)
- Sample & Hold circuit with an individual clock
- Manual gate button
- Voicecard slot
- Built in speaker
- DIN5 MIDI input
- USB connector
- Dimensions: 40 x 385 x 210 mm
- Weight: 1.8 kg
Bullfrog is a classical subtractive synthesizer – it consists of several “modules” for sound generation – VCO, NOISE GENERATOR - and treatment – VCF, VCA/DELAY, as well as “modules” that generate control and modulation signals to control them – ENVELOPE GENERATORS and SAMPLE & HOLD. The Bullfrog will not make the sound on its own unless it is patched – using eurorack patch cables to interconnect the “modules” or by inserting voice cards that create internal connections between the “modules” in a specific way and add extra functionality, like sampler/looper, sequencer, groovebox, etc. This approach better helps to understand the functionality of a subtractive synthesizer and the principles of sound design with instruments like these.
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
- User manual — Aug. 22, 2023
