30 watt-powered amplifier includes line level inputs for connection to multimedia sources and inputs for dynamic and condenser microphones. The self-powered speaker provides ample volume for large classrooms and conference rooms.Primary InformationSpeaker System Type : Speaker Features : 30 Watt SpeakerAudio Amplifier : Integrated Response Bandwidth (Hz) : N/A Signal-To-Noise Ratio : N/A Power ConsumptionNominal Output Power (Total) : 30 Watt UNSPSC CodeUNSPSC Code : 52161512