Pair of 70-100V 10W CSB-10T wall mounted speakersThe CSB speaker range has a modern design and quality sound. They are suitable for indoor use. They are certified according to the European standard EN 54-24 / 2008 for public address and fire alarm systems. They are equipped with a 3-inch broadband speaker and their wide frequency range is also suitable for music transmission. The power is 10 W. The speakers contain low frequency transformers and allow connection to high impedance distribution of 70V and 100V, have an impedance ranging from 500 Ohm to 4K Ohm. The rotary switch on the back of the speaker can be used to select the various resistances and thus reduce or increase the power of the speaker. Mounting is done via a wall mount bracket with the possibility of rotation in the required direction. The speaker case is made of ABS resin and is resistant to scratches and impacts.Characteristics- speaker type: broadband speaker- for environment: indoor (type A)- standardized: European standard EN 54-24 / 2008- woofer: 3 "with paper cone and 0.5" voice coil- frequency range: 160Hz - 20kHz- rated power: 10 W- minimum impedance (70V line): 500Ω (10W)- maximum impedance (70V line): 4 K ohm (1.25W)- minimum impedance (100V line): 1KΩ (10W)- maximum impedance (100V line): 4 K ohm (2.5W)- SPL: 85 dB - operating temperature: -10 °C to +50 °C- connections: terminal block- cover surface finish: ABS + PC, white color- fire protection: wall bracket made of surface-treated sheet steel, connection bracket lacquered, stainless steel screw and safety cable- speaker grille finish: mesh perforated steel sheet- mounting brackets and accessories included- Dimensions: 115x107x175mm