In the Box:
The design of the ACTL3 room kit is based primarily on 14 x 10 x 8 foot high room. By augmenting the basic package with additional items, any room size up to 19 x 19 feet can be treated.
1) Additional corner bass traps. For rooms with parallel surfaces close to 9 feet apart (E.g., 8-12 feet), we recommend bass management using four RPG Modex™ Corner Traps tuned to 63 Hz. Otherwise, we recommend using broadband corner bass traps (or tuned traps with a center frequency appropriate for your room).
2) To improve listening clarity and timbre, add ceiling panels or a cloud at the first reflection point above the listening position. Options include the RPG Abflector™, RPG BAD™ Panels, or other products that absorb or redirect ceiling reflections.