In-wall; modular vertical array
The grille, acoustic axis and listening area should be resolved on the elevation or reflected ceiling plan before site openings are made.
100 IWSUB8Passive bass-reflex in-wall subwoofer
A passive in-wall subwoofer that adds discreet bass to 100 Series and 300 Series systems, with modules combined to suit room and output targets.
Concealed low-frequency extension
Channel duty determines quantity, spacing, amplifier demand and whether a matching subwoofer is needed.
8-inch Polyglass woofer · configurable modules
Use the official product documentation to confirm cut-out, depth, impedance and power requirements before procurement.
What it solves
Performance without asking the room to work around a cabinet.
A passive in-wall subwoofer that adds discreet bass to 100 Series and 300 Series systems, with modules combined to suit room and output targets.
Polyglass cones, inverted-dome tweeters, shallow installation depth and paintable magnetic grilles make the range flexible across a residence.
For Indian projects, selection should account for construction method, ceiling void, heat and humidity where relevant, service access and the availability of an acoustically suitable back volume. The exact speaker position should follow the final furniture and screen layout—not a generic ceiling grid.
Coordination checklist
Freeze these decisions before finishing work.
- 01
Acoustic geometry
Listening seats, screen or TV position, channel angles, room boundaries and required coverage.
- 02
Construction
Cut-out, clear mounting depth, stud or channel position, back volume, grille alignment and finish.
- 03
Services
Lighting, HVAC, sprinklers, fans, structure and access panels that can conflict with the speaker.
- 04
System
Cable route and gauge, amplifier channels, impedance plan, equipment ventilation, DSP and calibration.
Product documentation
Confirm the specification at source.
Model positioning and imagery on this planning guide are based on Focal’s official product information. Final availability, finish and technical compatibility in India should be confirmed before quotation.
View 100 IWSUB8 on Focal.comFrom drawing to demonstration
Bring the reflected ceiling plan.
We will review listening areas, speaker geometry, light fittings, HVAC, structure, cable routes and equipment location—then prepare a system that can be demonstrated at the Focal Experience Center in Pune.
Plan a Pune consultation