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Reload Thread: Silver Flute/Peerless, Home Audio Build

  1. #31
    thadman's Avatar
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    Re: Silver Flute/Peerless, Home Audio Build

    Where are you crossing your NSBs? If you treat the cones they might sound better in a more narrow passband as a result of being more pistonic, but sometimes the peak is so high up in frequency that harmonics of that peak wont affect the passband you're listening to.

    How small are those NSBs? 4"s? With cone treatment the peak may well be hovering around 10khz which would put the harmonic of that peak out of your passband for the driver making you oblivious to the negative effects. The thread starter does not have this opportunity, his peak is going to show up as distortion as early as 1khz. Treating the cone will only make the peak larger, but not put it out of the passband.



    It doesn't matter how beautiful your theory is, it doesn't matter how smart you are. If it doesn't agree with experiment, it's wrong. - Richard Feynman




  2. #32
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    Re: Silver Flute/Peerless, Home Audio Build

    Where are you crossing your NSBs?

    To verify what the cone treatment did, I ran the 4" NSB midwoofers full range,
    maybe a high pass to filter out some bass.

    NSB unmodded vs. NSB modded blind tests. Everyone who listened, picked the
    modded version as sounding better unbeknownst to them it was modded, to
    them it looked like the same driver from afar.

    I also did another blind test with $129 midrange vs. NSB behind grill cloth
    and the people listening were told that speaker A cost $129, based on the
    sound you hear from speaker B, how much is it worth. Most people said at
    least $100. The mod created the illusion that the modded driver sound competed well
    with the high end driver at the higher frequency range at moderate SPL levels. I
    didn't need the audience to tell me, I heard it, but I wanted verification, lol.

    I also did phase plug mods and did some comparisons, phase plugs improve
    the sound a we-bit, but it's only worth it if you are **** and will operate the
    driver with no low pass.




  3. #33
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    Re: Silver Flute/Peerless, Home Audio Build

    Well, I started building the passives today


    I only got the LPF section of one done today, due to time constraints



    Last night I got the enclosures all cut and glued

    All cuts were mitered, and I should have pics of that a little later this evening.



    Pics of passives.








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  4. #34
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    Re: Silver Flute/Peerless, Home Audio Build

    Pics of Cuts




















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  5. #35
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    Re: Silver Flute/Peerless, Home Audio Build

    nice build, looking forward to some more pics & your conclusions on how it sounds, keep up the good work



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  6. #36
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    Re: Silver Flute/Peerless, Home Audio Build

    Dinty,



    Thanks man

    Pics will be available as progress permits.



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  7. #37
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    Re: Silver Flute/Peerless, Home Audio Build

    I haven't updated here in awhile, but I've gotten a decent amount of work done.

    The paint still needs finished up and everything, I got a process I'm going to do.

    We'll let the pics speak.



















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  8. #38
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    Re: Silver Flute/Peerless, Home Audio Build

    Looks **** so far! Good luck on the rest of the build.



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  9. #39
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    Re: Silver Flute/Peerless, Home Audio Build

    I'd still be happy to give my thoughts, but yikes...my amps aren't going to like those resistors at all.




  10. #40
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    Re: Silver Flute/Peerless, Home Audio Build

    Why's that?



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  11. #41
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    Re: Silver Flute/Peerless, Home Audio Build

    Because my 8 watts per channel is going to go into heating those beasties up, and not powering the speakers




  12. #42
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    Re: Silver Flute/Peerless, Home Audio Build

    Quote Originally Posted by JimJ View Post
    Because my 8 watts per channel is going to go into heating those beasties up, and not powering the speakers
    Those resistors are a bit over kill...

    8 W into resistor... 8 mW out...







  13. #43
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    Re: Silver Flute/Peerless, Home Audio Build

    Quote Originally Posted by JimJ View Post
    Because my 8 watts per channel is going to go into heating those beasties up, and not powering the speakers
    'Tis what you get for running tubes...



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  14. #44
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    Re: Silver Flute/Peerless, Home Audio Build

    'Tis what I get for running the tubes I am

    Tubes can run full size Maggies, you just need a lot of 'em




  15. #45
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    Re: Silver Flute/Peerless, Home Audio Build

    Quote Originally Posted by B&W_EE View Post
    Those resistors are a bit over kill...

    8 W into resistor... 8 mW out...
    I did go a little crazy on the resistors.


    I may have a look into it and switch to smaller resistors.


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