Treatment Summary
Absorption Panels
31
35 total incl. 4 QRD · Order: 38
Bass Traps
14
QRD Diffusers
4
Total Panels
35
31 absorption + 4 QRD
Manual Curtain
1
VO Live only
Per-Room Breakdown
| Room | Panels | Bass Traps | QRD | Notes |
|---|---|---|---|---|
| VO Live B304 | 8 | 4 | 0 | + 1 manual acoustic curtain (north wall) |
| Control Room B311 | 2 | 4 | 2 | [AC] first-reflection panels required |
| Video Studio B312-1 | 13 | 4 | 2 | 2 additional panels added per ISM simulation verification |
| Editing Suite B312-2 | 4 | 2 | 0 | 4 [AC] |
| TOTALS | 31 + 4 QRD = 35 | 14 | 4 | Order: 38 panels (10% waste) |
[AC] Acoustic Critical — Editing Suite RT60 without panels = 0.42s, failing the 0.36s target. These 4 panels must be installed before commissioning sign-off.
Panel count logic: 27 required (8 VO + 2 CR + 13 ST + 4 ED) + 4 spares = 31 absorption panels + 4 QRD diffusers = 35 total panels. Order 38 (35 + 10% waste buffer).
Absorption Panel Specification
Core
Rockwool RWA45, 50mm
Size
1200 × 600 mm
Cover
Acoustically transparent fabric (Class A fire rated)
NRC
0.90 at 500Hz
Mounting
French cleat or Z-clip
Removable?
Yes — must be removable for electrical access
Bass Trap Specification
Core
Rockwool RWA45, 150mm
Height
Floor-to-ceiling (275cm)
Width
300mm corner placement
Cover
Same fabric as panels (matching)
NRC
0.95 (corner placement amplifies low-frequency absorption)
Mounting
L-bracket in corner, floor-to-ceiling
QRD Diffuser Specification
Size
800 × 800 × 120 mm
Wells
7-well quadratic residue sequence
Material
MDF or plywood, fabric-wrapped face
Position
Control rear wall (south) + Studio south wall lower-center
Manual Acoustic Curtain (VO Live Only)
Fabric
450 g/m² acoustic velour, double-layered
Width
327 cm (full north wall)
Height
275 cm (floor to ceiling)
Coverage
~9.0 m²
Drive
Silent Gliss or Integra Sidewinder, pull cord — manual only
Track
Ceiling-mounted manual track
Curtain OPEN (singing mode)
Vinyl floor ambience for vocalist — RT60 0.27s
Curtain CLOSED (VO mode)
Fully absorptive — RT60 0.20s, NC-12
Purpose
VO/singing mode switch. Curtain position controls room character without panel reconfiguration.
Ceiling Clouds
Suspended absorbers compensate for bass trap corners blocked by doors or equipment. Mounted at 245 cm AFF (30 cm below ceiling).
Control Room — SE corner
600 × 300 mm, Rockwool RWA45 50mm, fabric-wrapped
Video Studio — SW corner
1200 × 300 mm, Rockwool RWA45 50mm, fabric-wrapped
Height AFF
245 cm (30 cm below ceiling)
Mounting
Threaded rod + eye bolts from ceiling slab
Material Quantities (with 10% Waste Factor)
| Material | Net Qty | Order Qty (+10%) | Unit |
|---|---|---|---|
| Rockwool RWA45 50mm (panels) | 31 sheets | 34 sheets | 1200×600mm |
| Rockwool RWA45 150mm (bass traps) | 14 lengths | 16 lengths | 275cm × 300mm |
| Acoustically transparent fabric | ~28 m² | ~31 m² | Roll |
| French cleats / Z-clips | 62 pairs | 68 pairs | Per panel |
| MDF/plywood (QRD) | 4 units | 5 units | 800×800mm |
| Acoustic velour (curtain) | ~9.0 m² | ~10.0 m² | 450 g/m², double-layered |
| Manual curtain track + Sidewinder | 1 | 1 | 327 cm ceiling-mounted track + pull cord |
Install Guide
| Method | Spacing | Notes |
|---|---|---|
| French cleat | 2 cleats per 1200mm panel, 400mm from edges | Level check before mounting |
| Z-clip | 2 clips per panel, 300mm from edges | Preferred for removable access |
| Corner bass trap L-bracket | 3 brackets per 275cm trap (top, middle, bottom) | Bracket to wall, trap friction-fit into corner |