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Sigh...

MzissersonMzisserson
in Related
So.... How do I convince people this is actually a very good result?





   Take out the diffraction artifacts of the inset baffle and it would "look" a lot better. However, for years (and with some beloved British designs today) inset baffles were used, it had to be part of this retro-fit, and both Toole and Dickenson would argue the audibility once in-room. Further, it is very hard to understand what is happening with simple axial measurements with any kind of open-back driver. So needless to say I am a tad anxious over the reception these are going to get. The Distortion is at 1.5m by the way.

Comments

  • kennykkennyk
    It's all in the sound. I don't listen to FR graphs. So, how do they sound? 
    ............. could you hum a few bars.
  • D1PP1ND1PP1N
    I seem to end up with a minor smile FR graph. As long as your happy thats all that matters. 
  • MzissersonMzisserson
    Thanks guys. They sound wonderful.Not as much everything as all uber drivers would have, but overall they may be one of the most enjoyable speakers I have designed.

    It becomes hard to make what has been come to be known as pretty lines when moving away from traditional designs. There are so many other factors that count. You can see from the distortion and the slight downward tilt of the spatial measurement that the overall response in the frequency domain is pretty flat. 

    Traditional axial response is certinly not a dog's brekfast, but there is not enough time to let the rear-wave of the mid fill-in so it looks slightly recessed. 

    Then the diffracrion.... I end up with sharp anomlies (see Toole's work on the audibility of rapid change in response...or lack there of) which do not look pretty on the surface. 

    I don't know. Maybe I should have stuck more traditional with the design team stuff. The masses *like* pretty axial responses. 

    I guess I just have way too emotional.of an investment in this stupid hobby. From my years of a scortched earth policy, I have yet to really recover, and it seems I cannot learn and have to throw something out there that sounds great, and for the kind of speaker measures great, but is not what the masses are use to looking at. 


  • MzissersonMzisserson
    ..For giggles 1/48th 1.5M ignore blow 300 or so. Follow the rainbow 0,15,30,45deg. Kerry did this on the "Boomsticks" measurements and I like it. Makes it easy to understand. 
  • isaeagle4031isaeagle4031
    To the untrained eye or the one that has bought into the bias of "pros", it might look appalling. But to those that know better, it looks very good. Nice job Mike.

    I don't have pics yet, just Sims. But a 2way I'm working has a similar curve on-axis. However they won't be used much that way so I targeted the off-axis more. If I posted it "over there", I would probably be ostracized!
  • MzissersonMzisserson
    isaeagle4031 said:
    To the untrained eye or the one that has bought into the bias of "pros", it might look appalling. But to those that know better, it looks very good. Nice job Mike.

    I don't have pics yet, just Sims. But a 2way I'm working has a similar curve on-axis. However they won't be used much that way so I targeted the off-axis more. If I posted it "over there", I would probably be ostracized!
    Thanks much... It helps me feel better about it. It certinly is hard targeting power vs frequency!  I will likely just post the spatial curve and let what comes if it come. Looking forward to seeing how that two-way pans out! 
  • ani_101ani_101
    The distortion graph looks good, with a slight downward tilt. what I am having difficulty in getting over is the "Hump" at 850. Though if you mentally erase the hump, then again its gently sloping from 400 onwards..... Not that I can hear specific frequency anomalies, but is that what we are talking about? What about the graph is throwing ppl off (leaving aside the sounding part)?
  • MzissersonMzisserson
    ani_101 said:
    The distortion graph looks good, with a slight downward tilt. what I am having difficulty in getting over is the "Hump" at 850. Though if you mentally erase the hump, then again its gently sloping from 400 onwards..... Not that I can hear specific frequency anomalies, but is that what we are talking about? What about the graph is throwing ppl off (leaving aside the sounding part)?
    Not sure what that hump is. It does not show up in the FR or Distortion. Not even the Z which I didnt post. Either way, I cannot hear an issue, so I am not worried about that. 

    I am not sure if the masses will understand this is not a traditional.3-way where pretty axial response will tell a good chunk of the story, but they will have to see something since it is my final design team project, so I am not sure what the heck to release to the dogs and the last thing I want to do iscome across like I am excusing something. I could write 10 pages about it but frankly, I don't wanna and I am unsure anyone would read lol.
  • kennykkennyk
    Post the project in the gallery only. Later, you can get some evaluations and then post for discussion.
    ............. could you hum a few bars.
  • ani_101ani_101
    Does it need to be posted for discussion?
  • kennykkennyk
    I think Mike would like feedback from his peers.
    ............. could you hum a few bars.
  • MzissersonMzisserson
    kennyk said:
    I think Mike would like feedback from his peers.
    Always. I think this may be the best approach, though I did a heckin job rebuilding the okd Cerwin Vega DX5 cabinets. 

    I think they will show well at DIY NY, knowing Roman's space. So I may post the build, Z, and spatial, and keep the rest until after it is heard. Knowing what has recieved a good reception in the past, these should be a crowd please....Though Napolean had that confidence going into Russia, too. 
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