No info about availability.
500 Series 4-band Single-channel Equalizer
These merchants probably sell this module. Huh?
Included in 10 Racks, 5 are public:
Andrew Oxley Headjoint c8547
Markbass Little Mark III 500-Watt Bass
Chase Bliss Audio Generation Loss MKII
Meris Enzo
Neumann TLM 102
Charvel Charvette