Indoor Column Speaker 1 Normal Powr:4W,8W,12W 2 Elegan design 3 Clear and find sound quality Public Address System Column Speaker DSP103 Specification: ModeDSP103DSP203DSP303Normal Power4 / 8W8 / 15W12 / 23WLine Voltage70-100V70-100V70-100VSensitivity(1m,1W)91dB91dB91dBFreq. Resp.140-12,000Hz140-12,000Hz140-12,000HzDimensions(mm)250x165x125425x165x125600x165x125 Column Speaker DSP103,203/303