Single 400W; Triple debugging with three settings: strong, medium, low; adjustable for full tone, midrange; improved plug design; use "MID" and "full tone" for general frequency; if the tweeter sounds low, set "medium" to "strong"; if using a subwoofer, switch from "low" to "midrange"; plug settings "medium" and "low" for standard high and low frequency; plug settings "low" and "strong" for high low frequency; plug settings "strong" and "low" for high frequency; plug settings "mid" and "full tone" for mid frequency; crossover suitable for high slant midrange two-way speaker or single speaker; speaker suitable for impedance of 2-16 Ohms; designed for 2-16 Ohm impedance range; optimized for sound quality; color: red; material: PCB; package includes: 2 x 400W speaker crossover; only items listed in package content are included; other products not included; note: lighting and display differences may cause slight color variation from the actual item; measurement error allowed within +/- 1-3 cm.