Features: brand new and high quality Treble and Bass Dual Frequency Divider:This is a professional frequency divider, which is widely installed in the speaker. To separate the mixed audio signal into a treble, bass, and then were sent to the corresponding treble, bass speaker unit in playback, resulting in enhance the sound quality purposes.Playing an important role of the total frequency signal segmentation. Perfect HIFI Sound : Speaker Frequency Divider,Make the treble clear and increase the intensity of the bass, freely enjoy clear and natural music.Treble and bass dual frequency support, helps to transmit the treble signal to the tweeter unit, and divide the bass signal into subwoofer unit. High Quality and Super Durability: wire wound ceramic resistor and high-quality metal film capacitors, ensure its large load power, long-term durability, never burnout. Wide Application:Unit Hi-Fi Sound Filter Audio Module Board,Widely use in treble and bass speakers, car full frequency speakers, or use treble/ bass alone. DIY Speaker Circuit Board: 2 Way Frequency Divider,Circuit board design with precise cutouts and lines, free for welding, very suitable for DIY.High quality and free welding. Specifications: Filtering: Treble+Bass 2 Ways Power: 450W (below 800W available) Frequency point: 2850Hz Impedance: 4-16 External dimension: approx. 178x127x52mm/7.01x5x2.05in Opening size: approx. 141x91mm/5.55x3.58in Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x 2 Ways Audio Speaker Crossover