Tech Talk 9: Marketing Hype!

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  • Опубліковано 6 жов 2024

КОМЕНТАРІ • 12

  • @ekbusdriver
    @ekbusdriver 4 роки тому +3

    I enjoy a lot of Danny’s videos, but way more people need to watch this video!

  • @indopleaser
    @indopleaser 3 роки тому

    loving alot of these videos. im bingeing!

  • @Tracks777
    @Tracks777 4 роки тому +2

    nice content

  • @xedasxedas
    @xedasxedas 4 роки тому

    Great talk. Next tell the guys what +/-3dBs drop really means in terms of power. Rating speakers by power handling is like see them as fuses.

  • @AALavdas
    @AALavdas 4 роки тому +1

    Well, power handling does mean something, for a certain crossover point and slope, and when the speaker is driven under non-clipping conditions. This more or less summarizes what you say in the first few minutes. I mean, it's not a term a term without meaning, it's just being abused very often.

  • @rainman3269
    @rainman3269 4 роки тому

    They still go into space now don't they ... Space station and all ... They all talk rubbish really ... Just didn't think the space age technology reference being in the 50's & 60's made much sense

  • @mdocod
    @mdocod 2 роки тому

    The "between the lines" part of this video comes across to me like a way to de-emphasize the importance of distortion measurements by explaining that the measuring techniques in "normal" environments don't work. A useful distortion measurement would likely expose a lot of boutique crossover components as having no useful impact on the final output that couldn't be replicated with some other value tweak, so Danny, being in the boutique crossover component sales business, is essentially "marketing" his own angle here to legitimize the fancy components he sells.
    Harsh? Perhaps, but that's what this looks like from the outside looking in with an honest read of the situation. I actually have no idea whether boutique crossover parts produce a meaningful difference because I haven't seen any distortion measurements to prove or disprove it. All we have is "Hype."

  • @ZegaracRobert
    @ZegaracRobert 4 роки тому

    Wrong, twice on both counts (power and distortion) ! Thermal power that tweeter can handle is super low (2-10W), it cannot handle "hundreds of watts" the typical power distribution in music is set that way that higher frequencies just have less content (hence "music power")... Try to feed tweet in it's reproduction band idk 1-20KHz with actual 100W+ rms sine and observe what happens with your voice coil (you can do DC also, pure thermal, no mechanical stress, but since VC doses not "move", no as good cooling as with sine, marginal difference though)! Also compare voice coil size for woofer and tweet and calculate thermal conduction for each size, it is kinda intuitive even without all that unnecessary math...
    Also distortion (same as MP3 and other encoding uses this trickery to eliminate frequencies that fall under masking as un-audible) ear is more sensitive when distortion products are of higher order, and it is super easy to hear if your fundamental is somewhere in lower freq where ear sensitivity is lower (400Hz i.e.), and then your distortion product is in most sensitive freq band lets say 2KHz, you will easily hear that you can setup any signal generator (Arta is free-good or VA analyser, idk about clio) in multi-sine mode and set 400Hz and 2K @-45dB relative to 400Hz you will hear harmonic with no problem when toggling it on-off.
    Using room noise argument without spectral distribution of that same noise is false, since in closed room only lowest freq penetrate the walls and "move the needle" but energy in that high freq-ear sensitive area is usually lower so it cannot mask distortion products. also BTW in my house, rural, my noise floor is ridiculously low...

    • @dannyrichie9743
      @dannyrichie9743 4 роки тому +6

      Ha, ha, obviously we are not referring to power handling of tweeters outside of the speaker and with no filter. We can burn anything up with using it outside the intended application or with enough power. That line of thinking isn't relevant to what I am teaching. We are looking at real life applications here, and the point is not to get caught up in the numbers game. Especially numbers there are irrelevant to the application or in how it will sound. Sure we can hear the differences between MP3's and uncompressed file types. But if looking at driver speaks for a speaker to build, the difference in how good one driver will sound compared to another based on the lowest possible distortion numbers is misleading, just like your response.

    • @manFromPeterborough
      @manFromPeterborough 2 роки тому

      @@dannyrichie9743 I've always been a firm believer in RMS ratings, not the PMPO crap, the standard for making ghetto blasters look more powerful than they really are, Sony marketed their cheesy 7.2 home theater set as 3300w, in actual fact the 2 front towers getting 30wRMS each

    • @jonathanginofilippi
      @jonathanginofilippi Рік тому

      I like the notion of high frequency requiring less and less power to drive. Never considered that before.