1. The use of high-quality materials, product quality is guaranteed2. A level for RFI filter DC circuit, through two 50A bridge stack and four 35V2200UF capacitors, filtering AC power in the DC component, to suppress the DC component transformer generated by magnetic saturation or static current increase, and lead to humming3. Differential mode filtering, two differential inductors, differential mode filtering of the AC power supply to suppress high and medium frequency interference4.First level common mode filtering, through X2 capacitors and common mode inductors, combined into common mode filtering5. Two common mode filtering, because of the use of two (also known as two sections) filtering, so the effect of noise filtering better. For some users there are fast transient group pulse interference with a repetition frequency of several kilohertz, can play a suppression roleProduct parameters:Name: power filter for audio amplifiersInput voltage: single-phase AC 110--250VOutput voltage: single-phase AC 110--250VLoad rated current: 20AInput port: three-wire 7.62 socket inputOutput port: 2-wire 7.62 socket outputColour:blackMaterial:PCB+ComponentsDue to different batches, there may be differences in product appearance and printed text, which not affect usePackage Contents:1 * Power filterOnly 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.