Feature: 1. RFI Filter DC Circuit: A level of RFI filter DC circuit, through the two 50A bridge stack and four 35V 2200UF capacitors, filtering the DC component in the AC power supply, inhibit the DC component transformer generated by the magnetic saturation or static current increases, resulting in buzzing. 2. Used in Conjunction With: This module with the decoder or amplifier use, can filter the DC component of the power supply, eliminate and inhibit the transformer hum, high frequency noise in the power supply, purify the power supply, can significantly improve the sound quality of the amplifier, enhance the resolution and make the background quiet. 3. Differential Mode Filtering, First Level Common Mode Filtering: Differential mode filtering, two differential inductance, differential mode filtering of the AC power supply, inhibit high frequency interference. One stage common mode filtering, through the X2 capacitor and common mode inductor, the combination of common mode filtering. 4. Two Stage Common Mode Filtering: Adopt two stage common mode filtering, due to the use of two stage (also known as two section) filtering, so the effect of noise filtering is better. For some users on site there is a repetition frequency of several kilohertz of fast transient group pulse interference problems, can play a role in suppressing. 5. Three Stage Composite Filter Circuit: With three stage composite (1 differential mode and 2 common mode) EMI filter circuit, due to the use of three stage (also known as three section) filtering, so the effect of filtering noise is better. For some users on site presence of fast transient group pulse interference with a repetition frequency of several kilohertz, can play a role in suppressing the problem. Specification: Item Type: Power Supply Filter Board Material: PCB Input Voltage: Single Phase AC 110-250V Output Voltage: Single Phase AC 110-250V Load Rated Current: 20A Input Port: 3 Wire 7.62 Socket Input Output Port: 2 Wire 7.62 Socket Output Main Parts Selection: X2 Capacitor: for Simon 0.22UF 3PCS DC Elimination Capacitor: 35V 2200UF 4PCS Diameter Approx. 16mm/0.63in DC Dissipative Bridge: 50A 1000V 2PCS Differential Mode Inductor: 47UH 2PCS Common Mode Inductor: 2 PCS Resistor: 1 PCS Socket: 7.62 2PIN 3PIN 1PCS Each. Package List: 1 x Power Supply Filter Board