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lilmike

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lilmike last won the day on October 13

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About lilmike

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    PNW USA

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  1. lilmike

    Bolserst's Complex Driver Inductance Calculator

    Thanks! Timing was just about perfect for my projects. I hope to get the sub designs finalized in the next couple weeks, then get some sawdust made before year end. Will drag out the measurement gear and get some impedance sweeps of my drivers as soon as I can, then see if the models still look OK. Neither driver has all that high of an inductance (Le/Re of 1.03 for the 15s and 0.47 for the 18s).
  2. lilmike

    Othorn - HT capable?

    Room response matters far more than sub response. We're not listening to the cabinets out in a field or in an anechoic chamber, we're listening in a room. I know very little about this aspect of acoustics, but I am working on learning about this. There are lots of ways to make bass, none are totally right, but none are really wrong, they're all just varied in their types and degrees of compromise. Certainly, multiple cabinets bring benefits, no matter the alignment selected. Last thing I am trying to do is oversell tapped horns, specifically my designs. I know the guy that designed them, and I know the grades he got when he was studying engineering.
  3. lilmike

    Othorn - HT capable?

    A Microwrecker in a room of that size will blur your vision and modulate your voice when running at full throttle. I know, because that's where I have mine, and currently, I am only running the one sub, not even placed optimally. Still, I've measured peaks of 120 dB at the MLP. Be honest with yourself. How capable do you really need? Will you have mains that can keep up? I currently don't, not by a long shot, but I am working towards that. No matter which direction you go, there will always be a bigger, badder sub out there, always. There will be even bigger and badder ones right on the horizon. I am working on several...
  4. lilmike

    The Bass EQ for Movies Thread

    for reference... https://youtu.be/hcOwz99GS4c I'm right there with ya. Definitely have experienced the "fizz" with cars, even some proper subwoofers...
  5. lilmike

    Raw data for just 1 system

    Oh hell, that's like 10X me... I thought I had issues. Fired up ARTA for some TSPs over the weekend. Man, has it ever been a while. Took me a whole afternoon to remember how to set it up. I like it, but DAMN is it ever sensitive to calibration. Used the Saffire and the Behringer 0204HD, I like the 0204HD a bit better if I'm being honest.
  6. lilmike

    Raw data for just 1 system

    4mb for a day's worth of efforts sounds about right. I hope to be filling up laptop drives with data before long, have 3 drivers I need to test this weekend.
  7. lilmike

    Samps DS21 Build

    Admittedly, I oversimplified the statement regarding equal peak height above. The relationship between the driver parameters and the box tune dictate the relative size of the two peaks. What matters most is that the peaks you're measuring are a decent match to what your simulation software is predicting. As far as the grille spacing? Yeah, make sure things won't hit. X-mech plus a few mm is a great start, I'd look at the thickness of nominal pieces of plywood or other scrap stock. Make sure the grille does not rattle. Foam weatherstrip and lots of screws.
  8. lilmike

    Samps DS21 Build

    Yeah, that lower peak is a bit "soft", that generally means losses or leaks (or, as I learned, a really useless port). With a typical reflex box, we want the peaks to be about the same height.
  9. lilmike

    Samps DS21 Build

    Possibly. Looks like it is something where you could try it and see. Heck, just cut a piece and set it in place for testing. Won't be 100%, but will give you an idea.
  10. We're not prudes. You can say asshole here. Fuck too, as far as I know. We'll see if I get banned for that... Things here are NOT like AVS. I'm not a mod, but I do know a couple of them. Long and short - show up, participate and give a shit about what we discuss, and don't be a dick about it and there won't be any issues. Nothing wrong with calling a duck a duck. Nothing wrong with having an opinion. Just don't expect to find a bunch of sheep here. I can't (and won't) speak for the others, but I really don't give a shit about what the Internet thinks of what I am doing. I do what I do because I think it might be cool. If it is, I share it, if not, I tell people not to go down that road...
  11. lilmike

    Samps DS21 Build

    PM me. I can help you work through it. They're pretty basic. Might be as simple as L and R channels swapped.
  12. lilmike

    Samps DS21 Build

    Three years.... Weak.... I am still rocking the OG MicroWrecker (since 2013)... No finish, not even sanded, still has big PL boogers on it.
  13. lilmike

    Inductance modelling

    I was hoping that the WT2 devs would be able to incorporate Thorborg's approach into their calculated T/S parameters so I could get semi-inductance parameters for HornResp, so I asked them to consider it. Keith got back to me and said that the calculation of the parameters is trivial, the complicated part is incorporating the changed approach into the rest of their simulator. If they can, great. If not, I am not too fussed, as I also have ARTA and could always use REW. Now, I just need some time to actually build and measure speakers...
  14. lilmike

    Inductance modelling

    I did hear back from the WT2 devs. They're researching Thorborg's approach and evaluating adding that capability to the software. If I do a custom impedance sweep with the WT2, I can export the data as text. That's pretty much the same thing as I'd do with ARTA or REW though, so why not just use those tools?
  15. lilmike

    Othorn - HT capable?

    To be 100% clear, I absolutely recommend highpassing horns due to their out-of-band distortion performance.
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