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  1. Re: Power grid interference: What does it look like measured with different tools?

    A filter suppresses high frequency interference that comes from the power grid. The vast majority of audio components rely only on a simple transformer in the source section. However, due to its...
  2. Power grid interference: What does it look like measured with different tools?

    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...
  3. Re: Measuring Power Grid Interference in Practice

    Of course, you can measure excellent output parameters with laboratory cleaned power in laboratory. But if you have big EMI noise at home, you will have the same noise in the output. This is about...
  4. Measuring Power Grid Interference in Practice

    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...
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    Have we got used to bad recording or no?

    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...
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    Euphoria High End speakers - RDacoustic

    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...
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    Re: Acoustic Room Treatments vs DSP

    In my opinion, digital processing doing phase shift and it is worse than bad acoustic. Sound looses details and spatiality. Best sound is from single A class tube amplifier and good horn speakers...
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    Re: Jupiter Copper Caps

    They are good, but no as Delund.
  9. Thread: New Preamp

    by DavidPiska
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    4,971

    Re: New Preamp

    good work
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    Re: Acoustic Diffuser QRD67

    The best thing is to place diffusor with inverse pattern opposite first one, to the rear wall.
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    Acoustic Diffuser QRD67

    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...
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    re: Diffuse vs Dampen/eliminated

    Balanced between diffusion and dumping is very important, but we must not forget to room dimension as well. Square is not good, better is rectangle, wall distanc shell not be in multiplications.
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    Re: My DIY speakers (for my HT system)

    have you listened full range speakers without crossovers?
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    Re: diy audio rack

    not bad
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    Re: DIY Power Cable

    Hi, I think that power cable is insignificat regarding solution of power supply of the audio components. Every audio component should have internal EMC filters. It depends on its quality not on power...
  16. Thread: hello

    by DavidPiska
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    5
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    1,119

    hello

    :rolleyes:
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