Product Name: Crossover Filters Frequency Divider；Frequency: 3500Hz, Maximum Power: 130W,Output impedance: 4-8 ohms. | Treble and bass dual frequency dividing: Bass 12 dB/oct, Treble 12 dB/oct, Widely use in treble and bass speakers, car full frequency speakers, or use treble/ bass alone. | Welding: - T for tweeter, - W for woofer, - IN for amplifier | 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. | Package Includes:2pcs 130W 2-Way Speaker System Audio Crossover Filters Frequency Distributor