Sounds like this happened during testing outside in hot weather with decent volume levels.
Note to self: avoid high volume in heat with Mylar/Kaladex.
Note to self: avoid high volume in heat with Mylar/Kaladex.
Just ordred a pair of the 8 slims, since they seemed cheap enough to monkey with. Looking forward to test results and project ideas. 🙂
I am curious if these 8" tall planars could be used in MTM- configuration. The limited vertical dispersion pattern of the drivers will take care of the lobing issues that MTM's normally suffers from.
Would some of you care to try this out?
Would some of you care to try this out?
I wake up everyday and hope to find some measurements posted the evening before, but nothing 🙂. So I just ordered 4 of the 8" slim units, let's see how they turn out.
Me too. Now that you have ordered some, please post measurements when you can to stop the suffering. 🙂
Haha! I am not the most experienced with measurement of units, but plan a sweep from 400Hz to 20kHz with REW and UMIK. Some absorbing material on floor and ceiling, and because of nude (dipole) measurement I expect little reflections, as there are zeros to all sides.
Expected delivery is one week.
Expected delivery is one week.
Thanks Erik,
That will be enough to ease our suffering
- and kick start a new round of questions and speculations ;-)
That will be enough to ease our suffering
- and kick start a new round of questions and speculations ;-)
I can make tweeters and measure them faster then you got them delivered 😉
totaly different intentions behind my planar (low efficiency, but flat FR, put them in a small baffle and ur done 🙂 ) even i lack distortion measurements 🙂 as of yet since i made them for some small monitors/bookshelfs that dont go beyond 92-95 dB and i make them specifically for them and they are not quit finished 🙂, i will make some in the end of course 🙂
here is a version in push pull that i tamed only by acoustical measures (damping and some other methods) for flat and smooth response. no eq used or needed in my opinion. yes you do lose on insane output humps at 15khz or a rising response.. so not suited for horns, since that would result in a bigger downwards slope (like the radian tweeters)
Picture is wilth crossover in place as intended for the small speaker in question at 1300Hz 12db oct. could be upped a bit to make it even smoother though, and play louder without addressing the resonance more then i did.
Blue as is with only padding on the back in my small baffle
brown with extra padding top and bottom on the front to increase vertical dispersion and a slight rolloff in a small baffle
ofcourse i can make up something in between these curves. at the cost of vertical dispersion... or decide horizontal is more important up top and flip it around an should be able to create a lookalike curve
gating is used set to 4 ms. no smoothing used. SPL might be slightly off though. not by much
totaly different intentions behind my planar (low efficiency, but flat FR, put them in a small baffle and ur done 🙂 ) even i lack distortion measurements 🙂 as of yet since i made them for some small monitors/bookshelfs that dont go beyond 92-95 dB and i make them specifically for them and they are not quit finished 🙂, i will make some in the end of course 🙂
here is a version in push pull that i tamed only by acoustical measures (damping and some other methods) for flat and smooth response. no eq used or needed in my opinion. yes you do lose on insane output humps at 15khz or a rising response.. so not suited for horns, since that would result in a bigger downwards slope (like the radian tweeters)
Picture is wilth crossover in place as intended for the small speaker in question at 1300Hz 12db oct. could be upped a bit to make it even smoother though, and play louder without addressing the resonance more then i did.
Blue as is with only padding on the back in my small baffle
brown with extra padding top and bottom on the front to increase vertical dispersion and a slight rolloff in a small baffle
ofcourse i can make up something in between these curves. at the cost of vertical dispersion... or decide horizontal is more important up top and flip it around an should be able to create a lookalike curve
gating is used set to 4 ms. no smoothing used. SPL might be slightly off though. not by much
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The Radian driver has finally arrived. I'm hoping to test this weekend, but it depends if there is some free time at the studio. I'll test there to have the lowest noise floor and best reflection free measurements.
Greg
Greg
Measurements did indeed happen tonight. Too late to post detailed results, but I'll try to get something up tomorrow night.
Greg
Greg
Thank you so much Greg,
If it was a close quality enough of the NeoPro but at the fair price it is sold today, then it could be fun to make a sort of 0.5 way design with two units maybe 🙂 ... to fight the climbing spl curve and re enforce the max output level a little.
If it was a close quality enough of the NeoPro but at the fair price it is sold today, then it could be fun to make a sort of 0.5 way design with two units maybe 🙂 ... to fight the climbing spl curve and re enforce the max output level a little.
Complete noob question, but do you think the GRS PT2522C could work as an open headphone driver with dsp?