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A good tweeter to match 5" SB Acoustics Magnesium Woofers

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  • xmax
    replied
    I kinda think power response is the limit for accurate simulations, that's where the hard work comes in.

    Leave a comment:


  • DDF
    replied
    Originally posted by dcibel View Post
    Xsim just has no off-axis capabilities which is a big part of my design process, and I believe xmax as well as I recall "power response is everything".

    As unintuitive as the UI of SoundEasy is, I'm not disappointed in it, it does everything I want and more all in one software package.

    Xsim requires loading off axis each time you want to sim that axis. I asked Bill if he ever intended to add multiple curves for different observation points. He asked me for a family of on and off axis measures to use maybe a year ago, and I sent him a zip file but that was the end of the conversation. He must be happily enjoying retirement too much

    xmax, what do you need to model for drivers? Isn't better to just measure them?

    Leave a comment:


  • dcibel
    replied
    Xsim just has no off-axis capabilities which is a big part of my design process, and I believe xmax as well as I recall "power response is everything".

    As unintuitive as the UI of SoundEasy is, I'm not disappointed in it, it does everything I want and more all in one software package.

    Leave a comment:


  • xmax
    replied
    Originally posted by humphreyblowdart View Post

    It also runs well-enough on OS X (and presumably Linux) using Wine. Hornresp, too.

    I bought a LG Gram laptop for CNC and BassBox, Xover Pro etc and I kind of like it...

    It looks like Xsim is pretty great software and will get you as far as any sim. Now I need to look into getting
    accurate models of drivers into it to play around with it more.

    Leave a comment:


  • DDF
    replied
    Originally posted by dlr View Post
    Have you tried this in WinPCD? I added dcr for inductors in all traps and a resistor element option in the cap section of parallel layout traps. WinPCD emulates PCD in the filter sections available, only a single series trap after XO, but with a trap before XO, your circuit can be modeled since it has no main XO section use. Actually, your XO topology is rather unique, I don't think that I've seen anyone else do it this way. I like it.

    dlr

    Once Xsim came out, I've stuck with that. Beyond Xsim's greater flexibility, I also didn't like the inaccuracy from the excel version of PCD since it doesn't account for inductor resistance in parallel traps. In one design, it over-predicted loss at 750Hz by 0.5 dB (inductor R was 0.29ohms, for 0.75mH). I'm sure finer gauge inductors would have had even more error. Good idea to improve that in WinPCD.

    Leave a comment:


  • humphreyblowdart
    replied
    Originally posted by donradick View Post

    Xmax -
    XSIM runs fine on Ubuntu using Playonlinux utility. No need for Windows
    It also runs well-enough on OS X (and presumably Linux) using Wine. Hornresp, too.

    Leave a comment:


  • augerpro
    replied
    Originally posted by DDF View Post

    LOL, that's actually pretty funny. I was bored, sue me.

    Just seemed like the sort of stream-of-consciousness I get when I take Ambien. My friends told me they won't answer my phone calls after 10pm or they'll hear some crazy talk
    Last edited by augerpro; 01-16-2018, 11:20 PM.

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  • donradick
    replied
    Originally posted by xmax View Post
    You guys made me use windows and learn Xsim to confirm what I am referring to, without the 10 ohm resistor "bypassing" the 23 uF cap,
    it is very similar to not having the 2 split coils/caps. Great design and thank you for clarifying the friendly transfer function on the tweeter.

    (If the resistor was not required in the transfer function, it could have basically been done with 2 caps and coils instead of 4,
    a good study in filter design)
    Xmax -
    XSIM runs fine on Ubuntu using Playonlinux utility. No need for Windows

    Leave a comment:


  • dlr
    replied
    Originally posted by DDF View Post
    Btw, super powerful sprinkling resistors and caps around and cheap. C across l creates zero, usually bigger c vs l for same product of the two increases Q, increase inductor L or add resistor to make zero less deep (the two methods don’t produce identical results which is a problem with pcd).
    Have you tried this in WinPCD? I added dcr for inductors in all traps and a resistor element option in the cap section of parallel layout traps. WinPCD emulates PCD in the filter sections available, only a single series trap after XO, but with a trap before XO, your circuit can be modeled since it has no main XO section use. Actually, your XO topology is rather unique, I don't think that I've seen anyone else do it this way. I like it.

    dlr

    Leave a comment:


  • DDF
    replied
    Originally posted by johnnyrichards View Post

    Lmfao

    xmax, thanks for the compliment, but filter design is pretty well understood around here

    Leave a comment:


  • xmax
    replied
    Transfer function of RC is ok to 30K, I'm fine with that, pass me the Ambien.

    Leave a comment:


  • isaeagle4031
    replied
    Originally posted by johnnyrichards View Post

    Lmfao
    +10000!!!!!!

    Leave a comment:


  • DDF
    replied
    Originally posted by augerpro View Post


    Ambien just kick in?
    LOL, that's actually pretty funny. I was bored, sue me.

    Leave a comment:


  • augerpro
    replied
    Originally posted by DDF View Post
    Btw, super powerful sprinkling resistors and caps around and cheap. C across l creates zero, usually bigger c vs l for same product of the two increases Q, increase inductor L or add resistor to make zero less deep (the two methods don’t produce identical results which is a problem with pcd). Just watch out for what RC shunts do in the ultrasonics At a concert now, string quartet, no better practice for voicing a speaker. Btw is your new avatar from an old Gories album? You mentioned working in Detroit, saw many a show at the Greystone, Asylum and Saint Andrews Hall and amazing record stores up near ten mile back in the old days

    Ambien just kick in?

    Leave a comment:


  • johnnyrichards
    replied
    Originally posted by xmax View Post
    The pads I design use a cap in the shunt, it's great for a good safe transfer function, but these guys can't seems to get that far.
    Hypex has a Ncore recall, its a huge mess for my buisness and Hypex, I'm sure they will get through it but they are not even
    answering emails right now. It's a shame because the amps are so advanced and sound so much better than
    what I thought Class D could sound! I have almost given up on this forums lack of natural filter understanding
    ​other than your posts. Thanks.
    Lmfao

    Leave a comment:

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