Features: for auditory bass crossover, provides clear and powerful bass effect.. 1500W sound output, support adjustable subwoofer, to meet the user demand for sound details and bass performances. Stable, suitable for all of Auditory or professional Auditory equipment. . Adjustable subwoofer function, users can freely adjust according to different music genres or scene demands.. for Professional Auditory engineers, music producer and other Auditory field practitioners. Audiophiles, Auditory-visual enthusiasts and other individual users in pursuit of high-quality sound effects.. Specifications: Model：WEAH~809 Frequency Divider Power：1500W Size:about 118×95×53mm/4.6x3.74x2.08in Applicable Impedance: 4~8Ω Frequency: 250Hz / 270Hz Package Includes: 1PC WEAH~809 Frequency Divider note: Due to problem of lighting effect there might be tolerances in product, please understand. Please allow 0-2mm error due to manual measurement.