The source provides uniform sound radiation. When used with the power amplifier Nor282 (Nor280), the high sound power level ensures accurate descriptors in measurement conditions that include high background levels, high sound insulation properties and large room volumes.
Nor275 is designed for placement on the floor and uses the floor as a mirror for emitted sound.
The loudspeaker is designed to operate at full power for more than one hour continuously.
- Nor275 fulfil ISO 16283-1:2014 standard for airborne insulation measurements in field.
- Powerful – 120 dB Lw
- Lightweight (6 kg / 13.2 lb), portable and rugged design for field use.
Physical design: Hemi-dodecahedron
Sound power output: Using the Nor282/Nor280 with pink noise, and equalisation: 120 dB (Lin)
Power (broadband): 100 WRMS (max), Peak 500 W
Impedance: 5.3 Ω
Diameter: 355 mm (14”)
Height: 195 mm (7.6”)
Weight: 6 kg (13.2 lb)
Cable (/xm) for connecting Nor275 Hemi-dodecahedron loudspeaker to Power Amplifier Nor282/Nor280.
Nor1494/x consist of 4 pc 1,5mm² conductors. Maximum recommended length is 25 meters.
Rugged flight case Nor1327C with wheels and handle for the Hemi-dodecahedron Loudspeaker Nor275, tripod, Power Amplifier Nor280/Nor282 and miscellaneous accessories.
Dimensions: Length: 58 cm, Width; 58 cm, Height: 45 cm.
Photos just for illustration – the flight case can differ a little in newer version.