1)4 inch active speaker 2)30W rated power 3)Ceiling Speaker 4)Fidelity Sound 5)Any OEM we can do . 4 inch active speaker ... -100VSensitivity92dBFrequency Response90-18000HzLoudspeakerΦ40/Φ103mmHole DimensionsΦ205mmDimensionsΦ240×145mmWeight2.2kgColorWhite1)4 inch ceiling Speaker. Loudspeaker Diameter is Φ 40/Φ103mm ,Dimensions ... ,Cooma® ,GBS ®,Sonnea® ,And many Other OEM orders . 4 inch active speaker