3. High-power oxygen-free copper enameled wire wound inductor, resistant to 300 degrees high temperature PC frame resistant to high-power impact, high temperature resistant and not easy to burn | 2. High-quality metal resistors, excellent heat dissipation performance, small temperature coefficient, high power, ultra-small error, plus a high temperature insulation sheet at the bottom of the +/- 1% resistor, the resistor plays a role of heat insulation under high temperature conditions to prevent damage to the circuit board | 4. The treble part comes with a new generation of module, which can instantly protect the treble under high power and prevent the treble from burning | 1. High-power aluminum shell resistor, aluminum shell power resistor (gold aluminum shell resistor) shell is made of aluminum shell gold, with heat dissipation on the surface, small volume, high power, strong overload capacity, weather resistance, and good accuracy. Good stability, good for mechanical , and more convenient for users to install | 5. 500W Speaker Crossover 2 Way High-Low 8 Ohm Frequency Divider for Speaker 2200hz

Frequency response: 2800Hz | Model: PA-280JBL | Capping power: 800W | Filtering characteristics: high and low frequency division | Applicable impedance: 4-8 ohms

Maximum Power Per Channel: 50W | The power interface: 5.5 * 2.5 plug | Channels: 2 (2.0) | Channel types: 2.0 / stereo | The weight: 87 g (with copper column)