Treatment Summary
installed · Order 38 (10% waste)
12 corner installed · 2 ceiling clouds · Order 14 traps (2 spare)
VO Live 3 · Control Room 3
27 absorption + 4 QRD
VO Live only
Per-Room Breakdown
| Room | Panels | Corner Bass Traps | QRD | 125Hz Membrane | Notes |
|---|---|---|---|---|---|
| VO Live B304 | 8 | 4 (400mm) | 0 | 3 | + 1 manual acoustic curtain (south wall, over OW-1 glazing) |
| Control Room B311 | 2 | 3 (400mm) + 1 cloud | 2 | 3 | [AC] first-reflection panels (E+W); SE corner served by ceiling cloud (D2) |
| Video Studio B312-1 | 13 | 3 (300mm) + 1 cloud | 2 | 0 | SW corner served by ceiling cloud (D4) |
| Editing Suite B312-2 | 4 | 2 (300mm) | 0 | 0 | 4 [AC] |
| TOTALS (installed) | 27 absorption + 4 QRD = 31 | 12 traps + 2 clouds | 4 | 6 | Order: 38 absorption (10% waste) · 14 bass traps (2 spare) |
[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 (SSOT v3.7 · 2026-07-27 reconciliation): 27 absorption panels (8 VO + 2 CR + 13 ST + 4 ED) + 4 QRD diffusers = 31 panels installed. Order 38 absorption panels (10% waste buffer). Corner bass traps: 12 installed (VO 4, CR 3, ST 3, ED 2) + 2 ceiling clouds (CR-SE, ST-SW), order 14 traps (2 spare). 125Hz membrane traps: 6 (VO 3 + Control 3) for low-frequency modal control.
Absorption Panel Specification
Bass Trap Specification
125Hz Membrane Trap Specification
Tuned panel (membrane) absorbers for low-frequency modal control in the two smallest rooms. 6 units total — VO Live 3, Control Room 3. Target f0 ≈ 123 Hz (f0 = 600 / √(m·d)). 125Hz is modal below the Schroeder frequency in these rooms; confirm by measurement and add corner depth if residual boom remains.
QRD Diffuser Specification
Manual Acoustic Curtain (VO Live Only)
Ceiling Clouds
Suspended absorbers compensate for bass trap corners blocked by doors or equipment. Mounted at 245 cm AFF (30 cm below ceiling).
Material Quantities (with 10% Waste Factor)
| Material | Net Qty | Order Qty (+10%) | Unit |
|---|---|---|---|
| Rockwool RWA45 50mm (panels) | 27 sheets | 38 sheets | 1200×600mm (1 sheet per panel, order 38 = 10% waste) |
| Rockwool RWA45 150mm (corner bass traps) | 12 lengths | 14 lengths | 275cm × 400mm (VO+CR) / 300mm (ST+ED) |
| Rockwool RWA45 50mm (ceiling clouds) | 2 units | 2 units | CR-SE 600×300mm · ST-SW 1200×300mm |
| 4mm plywood face + 50mm RWA45 (125Hz membrane traps) | 6 units | 7 units | 1200×600mm, 100mm sealed cavity, f0≈123Hz |
| Acoustically transparent fabric | ~28 m² | ~31 m² | Roll |
| French cleats / Z-clips | 54 pairs | 76 pairs | 2 pairs per panel (27 installed × 2 = 54 net · order 38 × 2 = 76) |
| 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 |