KB STYLE - (KEYBOARDS) - Hinged, narrow lid, large bottom

LO STYLE - (LIFT-OFF LID) - Same as KB but with latched removable lid

MX STYLE - (MIXER) - Narrow, bottom tray, large lift-off lid. Entire mixer is exposed when lid removed.

M2 STYLE - Removable front and rear doors.

GA STYLE - (GUITAR AMP) - Like MX style (shallow bottom, large lift-off top) but tray is 3" deep.