Momentis Sonata Act-H: half-height metal base with an anti-panic writing tablet, for auditoriums and lecture halls.

Sonata Act-H pairs a half-height metal base with the Sonata line's anti-panic writing tablet, giving auditoriums a lower-profile frame than the wheeled Sonata Act while keeping the same fast-fold tablet mechanism. The reduced-height base keeps the row's sightlines cleaner in raked lecture halls, without moving to a fully mobile or wheeled configuration. It's a fitting choice for auditoriums that want anti-panic tablet seating on a fixed, lower-profile frame rather than a mobile base.