TK-182S High grade ultra low frequency sound box Datasheet Manual Firmware FeatureMainly used in bars, large multi-function halls, banquet halls, high-end lecture halls and auditoriums, etc.Adopt dual 18-inch subwoofer unit.18mm birch housing, light in weight, wear-resistant spray paint treatment, and dust-proof net cotton inside.Large-area inverter hole can reduce distortion.There is a jack on the top for mounting a column with a diameter of 35mm.Specification:ModelTK-182SImpedance4ΩFrequency response40Hz-400HzRated power1200WPeak power4800WMaximum SPL(rated/peak)131dB/137dBSensitivity100dB/@1W/1MSpeaker18″ subwoofer ×2Size550×700×1340mm (height×depth×width)Weight75kg