C8815 is a specific KTV club design divided by two full range speaker, imported birch multilayer plywood, box using compact polygonal design; surface using polyester amine light paint durability is high; this section sound box is equipped with a 15 inch precision bass unit and a frequency response of smooth wide 2 inch pipe (3 inch voice coil diaphragm) HF compression driver precision, makes the sound loose, not tight, bass deep and strong, enough energy, strong sense of strength, sound clean smooth, delicate treble clear, high reduction degree, the sense of hearing pleasant, comfortable, beautiful and moving to listen.