DC blockers - what's your experience

Just viewed a video about the AudioLab DC blocker. Then watched Paul from PS Audio explain how it works and now I’m intrigued. Anyone with insite?.

tunehead02-02-2023 5:36am

erik_squires Details Discussions Posts This discussion Message User 15,772 posts 02-02-2023 at 05:44pm Copy Comment URL Report Comment Edit Delete Should point out that the thing DC blockers fix the most is mechanical transformer hum. 99% of the time it does not affect the electrical output.
erik_squires Details Discussions Posts This discussion Message User 15,772 posts 02-02-2023 at 05:35pm Copy Comment URL Report Comment Edit Delete @tunehead - Avoid them unless you have an issue. One more piece of gear to break. DC should almost never happen in a home, and usually it's caused by things like LED power supplies and dimmer switches. Usually best to deal with the source of the problem and only if that can't be dealt with due to WAF and budget or being a tenant then a DC blocker is in order. A better idea IMHO is to monitor your AC voltage near your rack and see how much it varies. If you see too much a voltage regulator may be a good idea. https://amzn.to/40AoTWG
erik_squires Details Discussions Posts This discussion Message User 15,772 posts 02-02-2023 at 02:21pm Copy Comment URL Report Comment Edit Delete Do you actually have a DC problem? Can you identify the source and remove it? If you turn off everything else in your house and you still have DC it's time to call the power company.