1 bass second order treble second order to achieve phase compensation 2. Good combination of high-power resistors 3. diameter inductance meets high current 4. Applicable to: 4-8 ohm speakers/power 500W 5. Bass inductance + polymer magnet to enhance the sinking of the bass, reasonable circuit + high-quality components + high cost performance = correct sound It adopts wire diameter and inductance, high-quality metal film capacitors, high-power resistors and aluminum heat dissipation, adjustable switches for treble and low frequencies, self-recovery protection device, high-end quality, shocking sound effect of the stage without losing treble Detailed performance. In order to let the current pass quickly, increase the power of the frequency divider; work hard on the design and workmanship; the solder-free terminal block is high-grade and generous, and it is very convenient to use. Model: CW2801 Filter: 1 high 1 low Power: 500W Frequency response: 48-2200Hz Impedance: 4-8 Size: 195x148(mm) Hole distance 180x133 (mm) Applicable: DY modification and upgrade of stage/home speakers Colour: Material:plastic Size: 195 x 148mm Package Contents: 1 x frequency divider Only the above package content, other products are not included. Note: Light reflection 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.