DU 31

FLUSH MOUNT WALL SPEAKER

The DU 31 is a two way wall speaker with flexible design suitable for paging and background music for several type of installations.
It is equipped with a 3.5" woofer and a 1" tweeter.
The DU 31 includes a transformer for the connection to (100 - 70 V) constant voltage lines. A power selector 8 W, 4 W, 2 W at 100 V and a 25 V (8 W) soket make it possible to connect multiple speakers in parallel to a constant impedance line.

Applications
  • • Fixed installations
Part Number
  • • 13000204
Features
  • Power: 8-4-2 W (100 V) / 8 W (25 V)
  • Constant voltage: 100 V, 70 V, 25 V
  • Frequency response 100 - 17000 Hz
  • 160° angle of coverage
  • Body in plastic, RAL 9002 white ivory
Acoustical Specifications
  • Frequency Response: 100 Hz ÷ 17 kHz
  • Max SPL @ 1m: 91 dB
  • Horizontal coverage angle: 160°
  • Power Handling: 8 - 4 - 2 W RMS
  • System Sensitivity: 82 dB
Transducers
  • Tweeter: 1" piezoelectric"
  • Woofer: 3.5""
Input Section
  • Constant voltage: 100 - 25 V
  • Power Selection: 8 - 4 - 2
Cabinet
  • Cabinet Material: Polystyrene UL94HB
  • Colour: Grey White RAL 9002
  • Grille: Galvanized steel, grey white RAL 9002
Physical Specifications
  • Height: 175/6.88 mm/inch
  • Width: 151/5.9 mm/inch
  • Depth: 56/2.20 mm/inch
  • Net weight: 0.67/1.47 kg/lbs