George 47

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About George 47

  • Rank
    Subjectivist
  • Birthday Private

Personal Info

  • Location
    United Kingdom

Wigwam Info

  • Turn Table
    Voyd Ref 0.5
  • Tone Arm & Cartridge
    SME V/ IoII
  • SUT / Phono Stage
    Audionote s2
  • Digital Source 1
    Auralic Aries
  • DAC
    Audionote DAC2.1x
  • Integrated Amp
    Nord One NC500DM
  • Pre-Amp
    Pass Labs XP12
  • Power Amp/s
    Pass Labs XA30.8
  • My Speakers
    Audionote E/HE
  • Headphones
    Stax 303
  • Trade Status
    I am not in the Hi-Fi trade

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  1. George 47

    Apollo 11, 50 years ago

    Just like the average music festival.....
  2. George 47

    Apollo 11, 50 years ago

    When they developed the power generation system in for Apollo 11 they had a problem. The device works by mixing hydrogen and oxygen electrically in a power cell using platinum electrodes. The electrodes produce electrical power and the by-product was water that was fed to astronauts. Unfortunately, the water had extra dissolved gas in it which of course came out at inconvenient times. They, therefore, had to develop filters to remove the dissolved gases to avoid farts in suits.
  3. George 47

    Does rfi makes a system sound brighter?

    Could improve their sound output, hence the debate between JA and AN over the sound output of the speakers? JA rated their 'efficiency' lower as he measures speakers out in the room. AN argued they are designed for corner loading and therefore their sound output per watt would be higher. They then debated what effect that would give, an extra 3db, an extra 6db or....
  4. George 47

    Does rfi makes a system sound brighter?

    What you heard was a placebo you see as measurements show that it is not possible for your amp to pick up radio breakthrough as those the levels are too low. And those amp designers who take steps to make their amps less susceptible are just trying to rook you with their fancy expensive circuits.
  5. George 47

    Does rfi makes a system sound brighter?

    Yea, especially as the Audionote Es are designed to be put into the corners of the room. The room response is er....key.... No need for any measurements. Room response is key. But the ANEs are designed to work that way. It makes their response more consistent that way. Clever eh?
  6. George 47

    Does rfi makes a system sound brighter?

    I suspect Martin Colloms, Noel Keywood and Paul Miller would all be technically competent to address any/all those issues but the customers would get bored without the outcome bar a few people. Paul Miller developed a measurement suite of programs used by a major supplier of audio (AR Cambridge).
  7. George 47

    Does rfi makes a system sound brighter?

    A lot of time they did not advertise or only had one page as did a lot of other companies who did not get the full coverage that Linn/Naim did. Must be something else....it sounded exciting, interesting unlike other 'approved' and very boring speakers. Magazines are businesses and when all of them have done customer surveys the thing people want and will pay for are reviews, reviews and reviews. What they hate is measurements, measurements and measurements. So guess what they do. Even Hifi Critic which has zero adverts is full of subjective reviews with a few having measurements.
  8. George 47

    Does rfi makes a system sound brighter?

    Fxt that for you.
  9. George 47

    Does rfi makes a system sound brighter?

    Yes but Art Dudley said: I loved the Audio Note Jinro. Its overall sound was very subtly sweet, with a midrange that was a bit soft—timbrally, but not temporally—with an abundance of that often-noted-yet-never-explained "SET sound" that allows solo voices and instruments to stand musically and spatially proud of the rest of the mix. Funny old world with measurements and hearing not agreeing. Who would have thought it?
  10. George 47

    Does rfi makes a system sound brighter?

    A case of the cure being worse than the condition.....
  11. George 47

    Does rfi makes a system sound brighter?

    Hmm..... I remember this time somewhat differently and hearing Angus McKensie at a show confirmed it for me. I got involved with audio reading Hifi Answers and other 'New' magazines. These new magazines challenged the old guard, especially those at HFN. It was vibrant, alive and fun. HFN was full of DiYers from the 50s who loved measurements and classical music. HFA challenged that and went for listening to modern music, where the composers of the music had not been dead for 50 years!. It was a great challenge with HFA attracting the youngsters and HFN having the old guard. At a show I attended, Angus went into a room and immediately complained that there was no way this audio could be heard properly as we were not listening to decent music. Classical. HFA had a great article that summarised it beautifully, reference music and systems. HFA systems featured Linn and Naim and HFN boring BBC monitors and home-built amplifiers etc: Music...HFN 50 albums of Peruvian nose flute music and HFA New Boots a1nd Panties by Ian Dury. Oh memories.
  12. George 47

    Does rfi makes a system sound brighter?

    Ha..ha...if you are worried about RFI do not connect aerials to your amplifiers, commonly called cables.
  13. George 47

    Does rfi makes a system sound brighter?

    OK.....
  14. George 47

    Does rfi makes a system sound brighter?

    Sorry Keith this does not make sense. A loudspeaker driving a loudspeaker.... Or it is an obvious statement....an amplifier fully capable of driving the loudspeaker ......can fully drive the loudspeaker. Can't disagree and an amplifer that can't fully drive a loudspeaker can't fully drive a loudspeaker.
  15. George 47

    Does rfi makes a system sound brighter?

    Nope. What he is saying is that the interactions between SS and valve amplifiers are different. One of the key parameters is the output impedance of the amplifiers and the way that interacts with the speakers. That interaction depends on the input impedance of the speaker and how it varies with frequency. If it does not vary significantly (a purely resistive load) then the FR will not alter too much providing it does not go too low. But it is not just the outpu impedance of the amplifier but the interaction with the speaker. So a very low impedance speaker will require a lot of current and valves are mainly voltage amplifiers so they can run out of current for ultra low impedances such as occus in the bass of say a reflex speaker. . For a lot of speakers where the impedance changes signficantly and where the efficiency is vey low a valve amplifier is unsuitable as the FR will be all over the place and the amplifier cannot supply the current needed in the bass especially at the port frequencies. However, a SS amplifier used with a mainly high resistive speaker load that has been built to have a high speaker damping (Q) can sound overdamped and flat and undynamic So just looking at one parameter is over-simplyfing and the acual interacion is complex. The best way to hear what the impact is between the two items is to.....hear it.