Description
The RCF DU-31EN-8W is a compact two-way flush-mount speaker designed for paging and background music applications in a variety of commercial and professional installations. It combines a 4-inch woofer with a 1-inch dome tweeter to provide balanced full-range sound reproduction with clear voice intelligibility.
Flexible Constant-Voltage Operation
An integrated line transformer allows the DU-31EN-8W to connect to 100V and 70V constant-voltage audio systems, with selectable 8W, 4W, and 2W power levels at 100V. Ceramic screw terminals provide convenient input and output connections, while thermal fuse protection helps safeguard the speaker during operation.
Flush or Wall-Mount Installation
The speaker features a flameproof plastic body and steel grille with a clean white RAL 9002 finish. It is designed for flush installation and can also be adapted for wall or surface mounting using the optional A1331 rear cover. With 180° coverage and a compact design, it is well suited to paging and background music in commercial environments.
Product Specifications:
Speaker Configuration: 2-Way
Active/Passive: Passive
Included Speakers: 1
Woofer: 1 × 4" / 101.6 mm
Tweeter: 1 × 1" / 25.4 mm Dome Tweeter
Frequency Response: 100 Hz – 17 kHz (-10 dB)
Maximum SPL @ 1m: 91 dB
Maximum SPL @ 4m: 79 dB
System Sensitivity: 82 dB
System Sensitivity @ 1W/4m: 70 dB
Coverage Angle: 180°
Power Handling: 8W
Peak Power Handling: 32W Peak
Constant Voltage: 100V / 70V
Transformer Power Taps: 8W, 4W, 2W
Transformer Impedance: 1250Ω, 2500Ω, 5000Ω
Power Selection 1: 8W / 1250Ω
Power Selection 2: 4W / 2500Ω
Power Selection 3: 2W / 5000Ω
Protection: Thermal Fuse
Recommended Amplifiers: DXT 3000, DXT 4000, DXT 7000
Input Connectors: Ceramic Screw Terminals
Output Connectors: Ceramic Screw Terminals
Terminal Configuration: In/Out Ceramic Terminal Block
Enclosure Type: Sealed
Cabinet Material: Flameproof Plastic
Grille Material: Steel
Mounting Type: Flush / In-Wall
Environmental Rating: IP21C
Safety Certification: CE Compliant
Fire & Voice Alarm Certification: EN54-24 Certified
CPR Number: 0068-CPR-234/2025
Application: Paging, Background Music, Commercial & Professional Installations
Installation: Flush Mount, Wall Mount with Optional A1331
Design: Compact Two-Way Flush-Mount Speaker
Product Weight: 1.32 lbs
Product Dimensions: 6.89" H × 5.94" W × 2.2" L
Shipping Weight: 1.96 lbs
Shipping Dimensions: 10.24" H × 3.94" W × 6.89" L