Measured values for insulation against air-borne sound
Weighted normalized sound pressure level difference
Dn,w: 40 dB (lower black curve)
Weighted standard sound pressure level difference
DnT,w: 49 dB (upper black curve)
Measurement:
interior > exterior
Construction:
Double-shell acoustically isolated grid modules, with wall thickness: 13.5 cm,
Sandwich floor
Individual values for normalized sound pressure level difference
Additional data:
Volume of studio: 5.9 m³
Volume of room receiving the sound: 270 m³
The measurements were carried out in accordance with DIN EN ISO 140-4. The stated values are documented by a test certificate from an officially recognized testing center.
Measured values for larger and smaller audio boxes with an identical construction may vary.