Yamaha TX16W

Its filter is digital, allowing 17 different types, with one filter/type per voice.

Samples are stored on 720kB 3.5" floppy disks.

The operating system is loaded from disk.

There is an alternate OS for the sampler called Typhoon, created by a Swedish organisation.

[1] A free software emulation ("Cyclone") was released in 2013 by Sonic Charge (developed by Magnus Lidström, who was behind the original Typhoon OS).