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3 Ways Crossovers Filter Frequency Divider DIY Hi-Fi Module Board brand new high quality Features: 1. Frequency Divider -- the function of the frequency divider is to separate the mixed analog signals into high-pitched, mid-range and low-pitched parts, and then respectively send them to the corresponding high, medium and low woofer units for playing, thereby achieving the purpose of improving the sound quality. 2. Professional --this is a tweeter+mediant+ three-way KTV, stage professional speaker crossover and DIY upgrade tool which is to improve quality. 3. High-quality Capacitors -- low loss and high quality, no longer have the problem of electrolytic capacitors. 4.High-quality Materials -- high temperature resistant wire, wire wound ceramic resistor and imported metal film.Over-current for protection design, simple and beautiful lines, reasonable component layout.Small switch can adjust the treble (normally 3db can be added). 5. Ensuring large load capacity, long-term durability and very good sound quality.Any questions,Please feel contact us,we will do our best effort to serve you. Specification: Material :ABS+Metal Color : Red and Black Size : 156 x135 mm/6.14x5.31 inch