Power: single 400W; Triple debugging: three options availablestrong, medium, low; Bass debugging: selectable settings for full tone, midrange, bass, or powerful bass. Improved plug design: "MID" and bass settings cover general frequency ranges. If the tweeter sounds low, adjust "medium" to "strong." If using a subwoofer, try switching from "bass" to "midrange." Plug settings "medium" and "low" are for standard high and low frequencies. Plug settings "low" and strong bass provide high low-frequency output. Plug settings "strong" and "low" deliver rich high frequencies. Plug settings "mid" and "full tone" produce rich mid-frequency response. The crossover is suitable for high-slope midrange two-way bass speakers or bass speakers. Compatible with speaker impedance of 2-16 Ohms. Designed based on a 2-16 Ohm impedance range to enhance sound quality. Color: red. Material: PCB. Package Contents: 2 x 400W Speaker Crossover. Only the items listed are included; other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowance: +/- 1-3 cm.