moddict FZ-2F [Casio FZ-1 Dual Filter & VCA] LIMITED

FZ-2F [Casio FZ-1 Dual Filter & VCA]

The FZ-2F is a module featuring the special filter used in the Casio FZ-1 released in 1987 and its rack version, the FZ-10M.

It uses chips (MB87186) removed from actual instruments.

This is a clone of ALM014 FIZZLE GUTS, developed by ALM Busy Circuit and released as open source.

https://github.com/busycircuits/alm014-fizzle-guts

It features two resonant filters and a VCA, with a mix output.

The FZ-1's filters spark debate even among experts—whether they are analog (digitally controlled) or fully digital—so we deliberately labeled them DUAL DIGITAL ANALOG FILTER on the panel.

※ Moddict suspects it's a custom IC that enables digital control of an analog switch capacitor filter while adding components to allow features like resonance.

buchty's commentary

http://www.buchty.net/casio/dcf.html

The sound has a distinctive character, and while it has the drawback of introducing a crackling high-frequency noise depending on the filter position, its unique darkness can perfectly complement samples and synth sounds, making it hard to part with.

Width: 16HP

Depth: mm

Current consumption: 60mA (+12V) 30mA (-12V) 0mA (5V)

Included items: Power cable, 4x M3 screws