Powered CS-4000ME Ultima Microlook•8W Integrated Amplifier•Line Level volume control•Low Mid and High Tone Controls•Powered versions will also power an additional CS4000 Sound Panel slave•Fast and easy to installDescription BP4017ME/Pwrd Frequency Range 80Hz ~ 18kHz Output Impedance 8Ω Output Power 8W RMS (max) Operating Voltage 230v AC SPL @ 1W/1m 88.9dB / 97.4dB max Extension Speaker Output 8W Dimensions 600(W) x 600(D) x 120(H) mm Weight (Net) 6.20kg Weight (Gross) 10.23kg