video upload by LFusion Electronics
"Updated demo video showcasing L-Fusion Modular Analog Kicks Eurorack module with walkthrough through all the parameters, also tips how to get most of it using filtering and EQ. For best listening experience use studio headphones/speakers that can handle the low end.
Module is available on Reverb.
808 kick generates softer more boomy kick sound while 909 outputs more aggressive punchy kick often used for making techno. Built using modern components – Audio grade Burr-Brown OpAmps, low noise transistors as well as quality capacitors including legendary WIMA German ones where larger values are needed - module provides two clean analog sound outputs with dynamic range of over 90dB.
808 kick is based on T-Shape resonator, often used in Electro/Acid tracks. It has decay, pitch and tone knobs. The circuit has been modified for longer maximum decay.
909 kick is more complex, it generates more aggressive punchy kick sound often used making techno, its core is based on integrated triangle shape oscillator. This kick drum can be controlled with original attack, decay, tune, tune decay potentiometers. Original 909 circuit has been improved for longer maximum decay, we have also integrated extra potentiometers for soft clipping distortion and fast decaying attack noise control."

"Introducing new kick drum module with famous 909 and 808 base kick drums based on on original discrete transistor circuits. 808 kick generates softer more boomy kick sound while 909 outputs more aggressive punchy kick often used for making techno. Built using modern components – Audio grade Burr-Brown Opamps, low noise transistors as well as quality capacitors including legendary WIMA German ones where larger values are needed - module provides two clean analog sound outputs with dynamic range of over 90dB.