LNGR SUB-12.4SIMULATION · P2

Four twelves. 350 litres.

Four GRS 12SW-4HE drivers in roughly 350 L net with a folded bass-reflex port and a model tuning around 20 Hz.

IDEA

SIMULATION

BUILD

MEASUREMENT

FINAL

Concept rendering of a shallow subwoofer with four 12-inch drivers and a central reflex port — Design concept. CAD and PDF dimensions remain authoritative.

StatusSIMULATION / P2

Drivers4× GRS 12SW-4HE

Net target≈ 350 L

Outer size2337 × 500 × 400 mm

Model tuning≈ 20 Hz

Port300 cm² · internally folded

P2 planning state

LNGR SUB-12.4 replaces the old two-18PT preview. Four GRS 12SW-4HE drivers work in roughly 350 L net and the central port is folded because of the shallow cabinet.