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.
