Description

This product is used for AC 110-250V, providing pure AC power supply

By default, the domestic 250V version is sent. If you are a fan of Taiwan or foreign countries who need 110V, please take a photo and contact customer service. Remember to send the 110V version.

Note that this DC elimination + filter circuit uses Siemens common mode inductance to eliminate and prevent the noise of electrical appliances caused by clutter and fluctuations in the AC power supply.

The DC elimination circuit built by diodes and capacitors can eliminate and prevent the DC components in the mains AC power supply, and prevent the transformer from magnetic saturation or increase of quiescent current due to DC components.

In my many years of transformer sales career, I realized that the interference such as DC components in AC 220V has a great impact on the performance and quiescent current of the transformer. This circuit is the only power purification circuit board that integrates DC elimination and dual-stage dual-mode filter circuit. Please remember that we are the first to develop the circuit board

This circuit is a DC elimination + two-stage dual-mode filter circuit. The first-level imitation of the British DC elimination circuit eliminates the AC AC220V commercial power supply due to the DC components of the inverter air conditioner, electronic switching power supply, refrigerator, charger and other households. The second and third stages are dual-mode Siemens inductance filter circuits.

Give your sound a clean start

Overvoltage protection and lightning protection use Siemens varistor respectively to protect against overvoltage, and the lightning protection tube adopts Siemens ceramic lightning protection tube.

The materials and design of the entire circuit board are obvious to all. This circuit can suppress and eliminate AC interference components, and bring pure power supply to your speakers. Especially, the AC interference in Yunnan is the most obvious feedback from fans over the years. Yes, because I have been selling transformers for many years, many fans who tested very quiet transformers in my hands and sold them to Yunnan generally reported vibration and hum, while other areas were obviously better than Yunnan.

Board length: 186MM

Board width: 48MM

All accessories except Siemens inductors are second-hand dismantled machines, others are new accessories, because Siemens inductors are too expensive

The two capacitors that affect the sound the most in this circuit are the two large aluminum electrolytic capacitors in the picture. From 1000UF-4700UF, different capacities have different effects on the sound in different machines and circuits. This circuit is configured with ELNA 16V 3000UF , If you have time, energy and hands-on ability to debug the electrolysis, you can compare and try from 1000-4700UF.