LNGR SPKRHIFI. TWO WAYS. HAND-BUILT.
LNGR IB-15.4FINAL

Infinite-baffle wall in the home cinema

Four GRS 15PF-8 drivers, roughly 32 m³ rear volume and a Behringer NX1000D: from the wall opening to the finished 4×15-inch array.

IDEA
SIMULATION
BUILD
MEASUREMENT
FINAL
Finished infinite-baffle wall with four vertically mounted 15-inch drivers
Finished state: four GRS 15PF-8 drivers radiate into the cinema while the adjacent cellar acts as rear volume.
StatusFINAL
Drivers4× GRS 15PF-8
Rear volume≈ 32 m³
Total load8 Ω
AmplifierBehringer NX1000D
Target rangeabout 15–18 Hz

Built and operating

LNGR IB-15.4 uses four GRS 15PF-8 drivers and the adjacent cellar as roughly 32 m³ rear volume. Mechanical construction is complete; operating impressions and measurement/DSP work are documented separately.