The SPCV341.000 is an audio expander that propagates through the SPC system via X-BUS as an audio verification zone, 4 wired zones and 1 100 ohms / 0.775 Vrms output for connection to an audio amplifier. With integrated microphone and speaker, which generates pre and post audio recording to the event, live audio (listen / talk) between CRA / CMS and the SPC system. Audio with up to 3 satellites (SPCV310 / 410) that can be connected to the expander. Internal speaker: 5W / 16 O, electret microphone. 1 audio output for connection to public address system. Tamper front and rear. ABS plastic housing. Operating temperature: -10 to 50 ºC. Min./max. without satellites: 60/75 mA. Dimensions: 141 x 106 x 42 mm.