Product Details: The straightening filter board can be used with the decoder and the power amplifier to filter the DC component of the power supply, eliminate the interference of the mains, etc., and effectively purify the power supply! The DC-cracking circuit of the present invention eliminates and prevents the noise of the electrical appliance caused by the interference of the clutter and fluctuations in the commercial AC power supply by the flat-line SQ-type inductor. Eliminate and prevent in the AC power supply of the mains by using diodes and capacitors to eliminate , prevent the transformer from being magnetically saturated or quiescent current due to . This circuit can suppress and eliminate AC interference components, bringing pure power to your audio. Flat line SQ inductors have the following advantages: 1. Small volume, large current passing, unit current density is more than 1.3 times that of round copper wire; 2. the straightening rectifier tube adopts law to seal the root and rectify, 3. Close the magnetic circuit, the magnetic leakage is small, the effect is ideal, and the conductive radiation effect is good, and the consistency is stable; 4. High dielectric strength can extend the life of the power supply. Specifications: Material: PC+Metal Color as shown PCB material technology: 1.6MM glass fiber double panel, black oil double-sided tin plating. Working voltage: AC110V-265V Applicable rated current: less than 2000W Dimensions (L x H x W): 160 x 33 x 48MM Net weight: about 0.16KG Package Contents: 1 x Filter Module 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.