Features
  • 4" woofer and 1" dome tweeter.
  • Power selectable (100 V): 8 W – 4 W – 2 W.
  • 82 dB sensitivity.
  • Colour white RAL 9002.
  • Flameproof plastic body, steel grille.
  • In/out ceramic terminal block.
  • Thermal fuse protection.

DU 31EN is a two-way flush mount speaker with flexible design suitable for paging and background music for several type of installations. It is equipped with a 4" woofer and a 1" tweeter. It features a line transformer for the connection to 100 / 70 V constant voltage lines, allowing to select among 3 different power levels. The rear cover A 1331 (not included) makes it suitable also for wall or surface installation.


NEW

Part number:

13100120
DU 31EN
EAN 8024530022488

Acoustical specifications
Frequency Response (-10dB)
100 Hz ÷ 17000 Hz
Max SPL @ 1m
91 dB
Max SPL @ 4m
79 dB
Coverage angle
180°
System Sensitivity
82 dB
System Sensitivity 1W @ 4m
70 dB
Power section
Power Handling
8 W
Peak Power Handling
32 W PEAK
Protections
Thermal fuse
Recommended Amplifiers
DXT 3000, DXT 4000, DXT 7000
Transducers
Dome Tweeter
1 x 1.0''
Woofer
1 x 4.0''
Input/Output section
Input connectors
Ceramic screw terminals
Output connectors
Ceramic screw terminals
Constant Voltage Transformer
100 V
Power selection 1
8 W - 1250 ohm
Power selection 2
4 W - 2500 ohm
Power selection 3
2 W - 5000 ohm
Standard compliance
IP protection grade
IP 21C
Safety agency
CE compliant
EN54-24 certified
Yes
CPR number
0068-CPR-234/2025
Physical specifications
Cabinet/Case Material
Plastic
Grille
Steel
Color
White - RAL 9002
Size / Weight
Height
175 mm / 6.89 inches
Width
151 mm / 5.94 inches
Depth
56 mm / 2.2 inches
Recessed Depth
38 mm / 1.5 inches
Weight
0.6 kg / 1.32 lbs
Shipping information
Package Height
260 mm / 10.24 inches
Package Width
100 mm / 3.94 inches
Package Depth
175 mm / 6.89 inches
Package Weight
0.89 kg / 1.96 lbs
MANUALS
PDF
784 KB
07-05-2025
SPECIFICATIONS
PDF
1.1 MB
16-06-2025
STANDARD COMPLIANCES
PDF
64 KB
21-05-2025
PDF
64 KB
21-05-2025
PDF
173 KB
13-05-2025
PDF
186 KB
13-05-2025
PDF
491 KB
21-05-2025
DRAWINGS
PDF
297 KB
26-07-2024