Erica Synths / BULLFROG XL

Developed by Erica Synths and Richie Hawtin, Bullfrog is an educational electronic music instrument designed to captivate and inspire children and adults alike.

Learn. Produce. Perform

Developed by Erica Synths and Richie Hawtin, Bullfrog is an educational electronic music instrument designed to engage and inspire children and adults alike. Bullfrog invites you to unleash your musicality while combining the thrill of electronic music production with a comprehensive learning experience.

Bullfrog XL was designed specifically for teachers. It takes the same concept as the regular Bullfrog and expands it three times (literally!) in size, greatly improving visibility and maneuverability. It's the ideal educational tool to support your classes more effectively.

Features:

Fully analog design

High precision voltage controlled oscillator (VCO) tracking over 8 octaves

Manually adjustable voltage controlled waveforms – sine wave, shark fin and pulse wave with pulse width modulation (PWM)

Zener diode based noise generator

Resonant low pass voltage controlled filter (VCF)

Voltage controlled amplifier (VCA) with adjustable offset

Delay effect with adjustable delay time and feedback amount

Two looping attack, sustain and release envelope generators (EG)

Sample and hold circuits with separate clocks

Attenuator

Through processor with adjustable slew time

Two buffered splitter circuits

Two channel oscilloscope

6.3 mm jack socket

Manual gate button

Gate and trigger out

Sound card slot

Built-in speaker

DIN5 MIDI input

USB connector

Keyhole slot on rear panel

Dimensions (mm): 820x505x65 (including side panels) 250)

Weight: 8.3 kg

Bullfrog is a classic subtractive synthesizer. It consists of several "modules" for sound generation (VCO, NOISE GENERATOR) and processing (VCF, VCA/DELAY), as well as "modules" that generate control and modulation signals to control them (ENVELOPE GENERATORS) and sample & hold. Bullfrog does not generate sound on its own unless you patch it together by interconnecting the "modules" with eurorack patch cables or by making internal connections between the "modules" in a certain way and inserting voice cards that add additional functionality such as samplers/loopers, sequencers, grooveboxes, etc. This approach helps to better understand the functionality of subtractive synthesizers and the principles of sound design for such instruments.

WHAT'S INCLUDED:

BULFROG XL Synthesizer with Side Panel

Universal 12VDC Wall Adapter and Power Cable

User Manual

12 1/4" Patch Cables

Sequencer, Sampler/Looper, Acid Bassline, High Pass Filter, LFO, Electric Organ Voice Cards

3 DIY Voice Cards

To give you a comprehensive understanding of the functionality of this synthesizer and sound synthesis in general, a comprehensive user manual has been created to accompany your learning process.