... manufacturer, professional loudspeakers. 1, 1000W 2,102dB 3,Wooden materials. 4,2*18'' ModelSP-218Woofer/bass2*18''Frequency response30Hz--150HzRated power1000WSensitivity102dBPeak ... ΩWe are manufacturer, professional loudspeakers.1.1000w2.102dB3.Wooden materials.4.2*18'' woofer.Description: Within maked change not very well ...