If you're interested to see what power grid interference looks like, take a look at the videos below, or a comprehensive article about it here: F4SX Audio Power Filter - RDacoustic.cz (explains in detail what I did here and includes background info + why is it important in audio). A few months...
We measured the high frequency noise in the power grid. The voltage going to the measuring kit is conducted by a common EURO cable and the RD Power Filter in order to compare their efficiency. I have made measurements on four different places for comparison.
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It will be nearly 9 years when Ian Shepherd announce a Day of dynamic range (http://dynamicrangeday.co.uk). Did something change?
Why do I feel that nobody cares about this issue? Do recordings with a decent dynamic range only fit into the High-End world?
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link
High End speakers Euphoria in version stereo 2.0, which have the option to be upgraded to a surround 7.1 or surround 5.1. A unique one and a quarter-band structure is using the ideal characteristics of a very high sensitive full-range driver, which is complemented by a powerful bass...
link to acoustic diffuser
The use of diffusor has got similar diffusion effect, as if a sandblasted milk glass is placed in front of light beam from a torch. The glass evenly diffuse the light beam. Exactly the same result of evenly diffused sound is achievable using the acoustic diffusor...