- Item: Mains DC blocker and RFIEMI filter
- Type: The DC Duffer and Mains Filter
- Posted: 23 November 2013
- Builder: mwhouston
- Country: Australia
- Comments: 2
In Australia our mains supply has gone from clean power to not so clean power. For a number of years now I have built power filters into my power amps but not in media players or preamps. Because DC on the mains can cause many problems with audio gear and particularly audio gear using a toroid transformer a DC mains blocker may improve sonic performance. This simple DC blocker also incorporates an RFIEMI power filter. A choke on the input lead and 10A slow blow fuse round out a simple and neat solution to "dirty" mains power.
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