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The Black Ravioli Groundworks MA is a mains grounding device to treat your mains supply. It simply plugs into a spare wall socket or power conditioner socket and drains away spurious noise on the mains feed.
Customer Feedback
I must say I am pleasantly surprised by the black ravioli USB grounding box. Mr J. MumoÂ
The Eflos gave me an instant hit of impact and even greater dynamics. Mr M. TaylorÂ
Michael Horton (verified owner) –
I have bought a number of Black Ravioli modules, signal as well as power. While not cheap, on my experience they are both the best and best value filters on the market. Improvements are across the board, video as well as audio. Highly recommended