The frequency divider is suitable for a high-pitched mid-range two-bass speaker, or a single-bass low-middle speaker. The speaker is suitable for 2-16 ohms impedance. The design is based on the 2-16 ohms mass value design. Most products are the same, in order to improve the sound quality. Power: Single 400W Treble When connect with 1 and 2,3 and 4 together,treble frequency range is 2-4Khz When connect with 3-4,treble frequency range is above 7kHz When connect with 1 and 2,treble frequency range is above 9Khz Bass: When connect 1and 2,bass not go through crossover When connect 2 and 3,bass frequency range is 1K-4Khz When connect 2 and 3,4 and 5 together,bass frequency range is 700-900Hz 4.When connect with 3 and bass frequency range above 900Hz Colour: as shown Material: PC+metal Package Contents: 3 * Frequency dividers Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.