Tech support & Community Forum 
MIDI Ultimate Panels
The MIDI Ultimate front panel assembly consists of a 2-part construction - the 1.5mm thick laser engraved front panel along with the 3mm thick aluminium back panel.
Assembling the PCB pots and toggle switches will require the back panel to ensure accurate alignment. The front panel material is not rigid enough alone so requires the aluminium back panel for stiffness. Only the 3mm back panel is needed for alignment but an alternative acrylic template can be used as a substitute if not using the Soundtronics front panel assembly.