No info about availability.
MSX-MATRIX
First prototype of the MS-MATRIX
These merchants probably sell this module. Huh?
Included in 6 Racks, 5 are public:
Specs are approved by the manufacturer
Line 6 JTV-59 James Tyler Variax
Dean Dean Dimebag Far Beyond Driven ML
Feiten Pickguard
MXR M193 GT-OD
Feiten Pickgurard
Strymon Big Sky Reverb