One physical unit: the touch-screen face and see-through / dark acrylic enclosure are the same left-rack product as the 6-slot signal stack below — not a separate “central” page. Five processing cards plus converter; tube bank; EQ routing; one effects card (transient + saturator + exciter); perforated rear service panel for slide-out access.
Tube path: optional path from the tube box into preamp, compressor, and EQ — drive sets how hard the tube is pushed. EQ routing: HPF/LPF live on the EQ card; switching places them before the preamp’s band gain when selected. After slot 6, digital ties to the right-zone compute. Rear panel is slide-out/perforated; side channels route harnessing (power separated from low-level signal).
Face & enclosure (same unit)
Processing cage — 6 slots