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  1. Keith_W

    Post Your Frequency Response Curve!

    Oh. Well according to the description on their website, they recommend a calibrated microphone so there is probably a way to load calibration. Can't seem to find a manual for that app. Why do you want to use that app anyway? REW is free, and it is a de facto industry standard. That app costs...
  2. Keith_W

    Post Your Frequency Response Curve!

    Yes, it will. You can import it directly into REW. Oops I did not read your question properly ... which app are you talking about?
  3. Keith_W

    Why Synergy horns?

    Should probably give you a few assumptions. I assumed that the T30 was 0.3sec, and the ceiling height was standard Australian 2.7m. Anyway, want to guess why the two speakers are so similar below 400Hz? This is the published FR of the Yamaha NS1000: And the Monitor Silver-8: How come...
  4. Keith_W

    Why Synergy horns?

    Just to drive home the point of how much the room influences the sound, this image was posted on another forum: In red, Monitor Audio MA-8 Silver. In green, Yamaha NS-1000m. The question was, "why do these two different speakers have almost the same in-room frequency response?". If you look...
  5. Keith_W

    Seeking articulate subwoofer advice

    I spent $15k on a pair of custom made subwoofers. I used Rythmik Audio DS1204. These are servo controlled drivers, with the servo sensor located in the voice coil (meaning it is less susceptible to cone breakup). Each subwoofer has two of these 12" drivers, and driven by a Rythmik plate amp...
  6. Keith_W

    Alsyvox Raffaello speakers arrival and unpacking

    I agree, tweeters are the weak point of most modern speakers. Like you, I have a particular dislike for any speaker with a Beryllium tweeter. They all sound excessively bright and "metallic" to me. A big company with engineering resources like Focal surely couldn't have released a monstrosity...
  7. Keith_W

    Why Synergy horns?

    Like you, my system is fully DSPed. I think the biggest revolution in the past 10-15 years is the tools that were available to professionals has filtered down to hobbyists like us. Software programs are available, some are even free (like REW). All that is required is to get an inexpensive...
  8. Keith_W

    Any one using Acoustic Revive devices or Acoustic System Resonators?

    Have you or anyone else replicated the experiment described in 6 Moons ... where they place so many resonators in the room that voice becomes unintelligible?
  9. Keith_W

    Why your audio might be bad - and there is nothing you can do

    Those of you who skipped the last 5 minutes of this video should go back and watch it. In particular, his closing statements on why vinyl masters can be superior to digital, even though both vinyl and digital were mixed digitally.
  10. Keith_W

    New BMW i7 EV The New King Of Luxury ?!

    Those new BMW's are hideous. Looks as if BMW has not learnt their lesson from the Bangle era and they have double downed on ugliness.
  11. Keith_W

    My new 2160

    I thought: - your cat has been at your amp again - you dropped your amp on your foot - you saw your power bill But seriously, congratulations! I would love to have an amp like that!
  12. Keith_W

    Keith's Acapella system

    Now that I am able to do measurements again, I spent a bit of time repeating all the measurements and designing new target curves. These are the two that I came up with: The top curve (in green) is something I copied from a friend after I paid him a visit and heard his system. This has some...
  13. Keith_W

    MQA Declares Bankruptcy

    Indeed. They have give new meaning to the term "MQA lossy" and "MQA folds".
  14. Keith_W

    MQA Declares Bankruptcy

    Tidal is actually a minor streaming service. Source: You might notice that Tidal is lumped in with "Others" at 10.2% market share. So why did they go to bed with MQA? Rumour has it that they don't have to pay MQA licensing fees because they were seen by MQA as an important halo for them...
  15. Keith_W

    Roon absolutely sucks for classical

    It's not the playback of Roon I am concerned about. It is the library management.
  16. Keith_W

    MQA Declares Bankruptcy

    If you believe that MQA introduces more problems than it solves, then yes it makes sense.
  17. Keith_W

    MQA Declares Bankruptcy

    I like this comment made on another forum ... "MQA was not a solution in search of a problem, it was a problem in search of money".
  18. Keith_W

    Sound of playback software

    It's JRiver for me, too. It is cheap for what it does, and I keep discovering new features that I never knew existed.
  19. Keith_W

    The Most Significant Loudspeakers of All Time

    It IS a "my best" list :) I never had any intention of writing a "most significant speakers of all time" list, given my inexperience with many speakers found on many lists. Here is a selection of lists: The Absolute Sound: Quad ESL-57, Acoustic Research AR3a, Rogers LS3/5a, Wilson WATT, Magico...
  20. Keith_W

    The Most Significant Loudspeakers of All Time

    I have only ever owned 4 speakers in 30 years in this hobby! I know people who own more speakers than that at any one time. I have owned my current speakers for 15 years, and I do not foresee me changing this speaker. It took me this long to get them sounding good and IMO it's damned near...
  21. Keith_W

    The Most Significant Loudspeakers of All Time

    Your link takes you to the general landing page of that website. This is a link to the actual article. And the article is not about the most significant speakers of all time, it is "a look back at the most significant speakers in my journey". So anyone reading that article hoping to read about...
  22. Keith_W

    FINALLY Found A Listening Chair I Want

    I think that Steve Williams agrees with the OP that the ideal listening chair should not extend above the listener's ears: I wonder if he has one of these at home.
  23. Keith_W

    Keith's Acapella system

    BTW, I have solved my wonky measurement problem. It turns out that I have a faulty microphone cable. I am too much of a cheapskate to buy a long XLR cable for my microphone, so I got that length by joining a number of spare XLR cables together. What really threw me was that the fault was...
  24. Keith_W

    Keith's Acapella system

    I see I am not going to convince you that evaluating sound quality through Youtube and computer speakers is representative of what systems actually sound like. So aaaaanyway! Let's move on! Today, I was sent some files which had been pre-convolved with BACCH. If you are not aware, there are...
  25. Keith_W

    You can't handle the truth.

    That guy has absolutely no insight into why he has been banned from so many hifi forums, and it is NOT because of the reasons he claimed. There are many objectivists still in WBF, and I am one of them. The reason we haven't been banned (yet?) is because we are not evangelists. Everybody hates...
  26. Keith_W

    Keith's Acapella system

    Thanks. I can't play vinyl now because the system is now all digital. As for why it sounds harsh, there may be all sorts of reasons ... quality of phone microphone, MP4 compression, Youtube compression, etc. And if you think it is because of "digital", well ... if I played back vinyl, it has to...
  27. Keith_W

    Identification of members

    I suggest we respect the moderators who are working for the benefit of our community. Let them do their jobs and be patient.
  28. Keith_W

    Why Synergy horns?

    Why did you measure them so far away? If I am not mistaken, the Klippel NFS measures them 1m away. At 3m from the speaker, your measurement is going to be heavily contaminated by reflections, such that even windowing might make it difficult to remove. Not challenging you here, I am curious. If...
  29. Keith_W

    Why Synergy horns?

    At what angle off axis did you take those 3 measurements, and at what distance? I am curious about how my "normal" spherical horn performs compared to yours. When I get my measurement setup working again I will try to get some sweeps.

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