If you are into physics, look at Yevgeniy's measurements. Measurable proof.
You are trolling so why would i answer any of your questions ? I don't have to do anything you say 🙂
not getting it either.
if cabinet is no taller than 4.5" inches
then midrange used is smaller than that.
So you should be well able to do 3 k crossover
on third or 4th order.
pretty wide selection of metal domes in that range.
if cabinet is no taller than 4.5" inches
then midrange used is smaller than that.
So you should be well able to do 3 k crossover
on third or 4th order.
pretty wide selection of metal domes in that range.
Siegfried's spl_max1.xls was more for woofers. I created a modified version that has a frequency range more suited for mids and tweeters. Remember these are half space values and almost all tweeters distort badly (especially IMD distortion) well before hitting Xmax.
1k crossover is gonna be 1" 1/8 at minumum.
and maybe a few seas drivers that can tolerate that.
almost creeping into to dome mids.
even if resonant frequency is low, yep distortion kicks in early
mainly with surround and classic 3 k squawk
only way to dump power in them is to be over or at 3k
on 3rd or 4th order to get past surround distortion.
to get high SPL.
and maybe a few seas drivers that can tolerate that.
almost creeping into to dome mids.
even if resonant frequency is low, yep distortion kicks in early
mainly with surround and classic 3 k squawk
only way to dump power in them is to be over or at 3k
on 3rd or 4th order to get past surround distortion.
to get high SPL.
Horizontal center channel that’s all that’s available due to design constraints by the client.….a total of 6 supporting 4” midwoofers to support, 3 on either side.….the innermost two will be standard Xo and the outer 4 as .1 low frequency support. Crossing any higher is gonna have poor off axis response to anyone seated more than 20 degrees off axis.
I wouldn’t bother you folks if I had 6.5” of baffle height to work with.
Forget about any small full ranger as a mid tweet….off axis response will never satisfy and power compression will eat it for breakfast.
I run a bliesma 34b down to 1k she's still going strong even did some measuring at 105db at 1khz I do use a 200 dB xo. She was rocking a total of 3%thd and it was too damn loud to ever do again. Another thing to note she's in a waveguide so she gets nothing at 1k but by 2k that she gets 7 dB or so extra then she rolls off so I'm thinking she's only alive bc of that waveguide and having limiters in place at 102db
Not a dome, but if you want a low crossover and high power handling with wide dispersion to almost 10 kHz with a *small frame design - then this is what I use DIPOLE in my HT:
https://www.parts-express.com/pedocs/specs/264-1626--tymphany-tc5fc07-04-spec-sheet.pdf
https://www.parts-express.com/Peerl...MIs_K25Yay_wIVKCrUAR3ipg1fEAQYAyABEgJK6fD_BwE
*small enough so that you could stack 2 of these vertically within the confines of most tweeter face-plates.
https://www.parts-express.com/pedocs/specs/264-1626--tymphany-tc5fc07-04-spec-sheet.pdf
https://www.parts-express.com/Peerl...MIs_K25Yay_wIVKCrUAR3ipg1fEAQYAyABEgJK6fD_BwE
*small enough so that you could stack 2 of these vertically within the confines of most tweeter face-plates.
My pick is the Bliesma T34B. Its a beast of a dome and won't show strain at all if crossed at a reasonable point. Almost any other decent dome will be able ro play blisteringly loud if crossed high and steep enough ie. 3k+ 3rd order.
I've had great luck with the T35-C002 Seas dome. It will play very loud, well over 104 dB continuous.
I've had great luck with the T35-C002 Seas dome. It will play very loud, well over 104 dB continuous.
Well if we're talking about the TOTL dome tweeters then the upcoming Purifi 34mm dome will probably play lower (or lower distortion) and louder than any other 1-1.5" dome tweeter with it's over-achieving x-max.
No doubt it will come with a standard 104mm faceplate for legacy reasons.
No doubt it will come with a standard 104mm faceplate for legacy reasons.
I would use a CD if I had the sufficient height for the horn….but at 4.5” I‘d be pinching vertical directivity down to 30 degrees or so….too narrow for this space. And to get sufficient loading to 1khz, the horn would have to be pretty wide…..I’d be back to the same lobing with midwoofers spread that far apart vertically. I ‘could’ come up with a Synergy horn I suppose. But the vertical problem still remains………
I think I’m gonna give the SBAcoustics SB29 a try. With an FS of 600hz it just might do the job. Xmax isn’t great at .5 PtP so I suspect a bit of nonlinearity at higher volumes. If I can mechanically boost the lower end response and then cross at say 1.4, that might do the trick……not much space to work a waveguide in and if I recall correctly, most ring radiators don’t like to be horn loaded
There‘s some Scanspeaks that have an even lower Fs, but at 45 degrees off axis, they’re down 6-10db at 10khz…..not sure how that will translate to dialogue….probably not much but for immersive audio it will be a problem
On the contrary, ring radiators love waveguides! Regarding off axis response from a dome tweeter they will become quite directive at high frequencies, also the (cabinet edge) diffraction will make the FR much worse. It seems you are looking for something like an omni speaker almost where constant directivity would be good enough. A tweeter like the Seas DXT one with crossover frequency selected to match the directivity of the mid.
I used those for years mated to a 12" woofer. An excellent combination! It's sort of a mid-tweeter, but it matches well with in tone with 10-12" woofers.
IIRC Zaph described the neo model as a tank. These things are relative, but it was being crossed at 1.1KHz, so assuming you're not expecting 'flat out' all the time, there are certainly worse options. Highish HD2 of course, but as tradeoffs go, it's probably not a bad one.
I was able to exceed 105db at one meter to below 1khz for under $50 using the DIYSG SEOS-8 waveguide and Peerless ring tweeter: https://www.diyaudio.com/community/...stortion-and-compression-measurements.396645/
I'm still building a proper test stand to do polar measurements, but my rough checks seemed OK.
I'm still building a proper test stand to do polar measurements, but my rough checks seemed OK.
