The quantity of panels and their placement on each surface may vary according to your specific situation.
On sidewalls: panels can be distributed halfway between the main
sitting position and the speakers in order to reduce the first
reflection points.
On the front walls: panels placed behind the speakers reduce the
energy that would normally be reflected from this surface directly to
the main sitting listening position (whenever acoustic diffusers are
used the energy is scattered to dead points).
Rear walls: low and mid-low frequency absorption panels should be
placed in the middle, behind the listening position for better
results.
Ceilings: panels should be uniformly distributed along the ceiling in
small pieces (60cm x 60cm). Ceilings are an important empty surface
to be treated, as they are never occupied as any other surface.
Front and back corners: they are the ideal place for low-frequency
absorbents.
The height of the panels should be centred at ear/listening level in
most rooms. We usually suggest that treatment starts at about 90cm
from the floor on standard 2.50m / 3m walls.
Furniture or audio/video equipments: These components affect the
acoustic behavior of the room. They should be assembled as
symmetrically as possible while avoiding the massive concentration of
elements in only one side of the room.