1. It adopts over-current protection device, which is sturdy and with long service life. 2. The high-capacity part uses the famous non-inductive capacity in parallel, and the high-power non- capacitor, the low-frequency part is converted by inductance to achieve a clear and full effect. 3. The PCB floor adopts fireproof board, and the thicker copper layer can withstand high current. 4. The use of inductance, non- high-quality capacitors, high-frequency ceramic resistors, and solder-free connection terminals its large carrying capacity, long-term durability and very good sound quality. 5. 150W Speaker Crossover 3 Way High-Low 4-8 Ohm Frequency Divider for Speaker Model: 351 Filtering characteristics: high, middle and low three-way frequency Maximum power: 150W Frequency response: 50Hz~20KHz -351 is a multi-stage adjustable frequency divider Approximate frequency: treble 2000Hz-20kHz Midrange 780Hz, 820Hz to 2000Hz Bass 50Hz, 100Hz to 900Hz Applicable impedance: 4~8 ohm Center hole distance: 88 x 58mm Application range: used for home audio high school bass three-way DIY or sound quality upgrade Colour: as shown Material: metal + plastic Size: 93 x 63 x 28mm Package Contents: 2 x speaker crossover 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.