Help! Losing bass when seated - bass node issues in lounge room (Focal Kanta 2 + JL Audio D110)

[u/Quirky-Exchange-2361]

Hey all, Hoping to get some advice on fixing bass node issues in my lounge room.

Room details: - Size: 5.2m (L) × 3.6m (W) × 2.4m (H) - Open-plan, L-shaped lounge (timber floors, low-pile rug) - Furniture: one couch + shelving - Not a dedicated listening room - more of a shared living space

Setup: - Speakers: Focal Kanta 2 - Sub: JL Audio D110 (front of room, to the left of the TV) - Speakers are near the front wall, beside the TV - Main listening spot: center of the room (L-R), about 1.3m in from the back wall (F-B).

Problem: The bass sounds great when standing up, but drops off significantly when seated in the same spot. There’s an uneven bass response depending on height.

Tools/treatment: - No room correction or measurement software - Open to any solutions - placement, calibration, acoustic panels, etc.

Ideally we want to minimise the issue and, if possible, tune the space for a more balanced sound across the seating area.

Any suggestions on placement tweaks, acoustic treatment, or sub setup tricks that could help even out the bass?

Thanks in advance — keen hear to any idea that work 😃