im looking for a high efficiency tweeter that can tolerate a first order xo centered around 3khz for use with the audax pr170mo mid.
the efficiency to match should be over 95 db
The only tweeter i found that can work would be the seas t35
SEAS The Art Of Sound Perfection
what are my other options?
thanks!
the efficiency to match should be over 95 db
The only tweeter i found that can work would be the seas t35
SEAS The Art Of Sound Perfection
what are my other options?
thanks!
Hi, probably this one
LP 111.25/245 TW
as it's the only one that has ferrofluid in the gap.
The ones with no FF would produce substantial distortion at high power because of the excessive excursion at resonance. I don't know of the recent products such the Seas that you showed, that exhibits very low Fs for a tweeter, but the Fs/power with one cap for Xo problem remains.
Me...I used the Audax 94 dB titanium tweeter together with that 170MO midrange and the problem arose- with 1st order series Xo.
LP 111.25/245 TW
as it's the only one that has ferrofluid in the gap.
The ones with no FF would produce substantial distortion at high power because of the excessive excursion at resonance. I don't know of the recent products such the Seas that you showed, that exhibits very low Fs for a tweeter, but the Fs/power with one cap for Xo problem remains.
Me...I used the Audax 94 dB titanium tweeter together with that 170MO midrange and the problem arose- with 1st order series Xo.
Here is a Peerless offering I use in one of my product offerings. It is the real deal.
https://www.parts-express.com/pedocs/specs/264-1386--tymphany-h26tg45-06-spec-sheet.pdf
Off the self and exceeds posted specs. With a 0.5 mm peak xmax and over 7 sq. cm of dome area it can play loud with ease down to 2K and VERY low distortion. Typical FS is around 950 Hz. No resonance to have to deal with. Smoother than posted spec. A bargain if ever there were!
https://www.parts-express.com/pedocs/specs/264-1386--tymphany-h26tg45-06-spec-sheet.pdf
Off the self and exceeds posted specs. With a 0.5 mm peak xmax and over 7 sq. cm of dome area it can play loud with ease down to 2K and VERY low distortion. Typical FS is around 950 Hz. No resonance to have to deal with. Smoother than posted spec. A bargain if ever there were!
thanks
that waveguide seem a bit too pronounced?
do you think it can sustain a first xo order at 3khz?
the Seas t35 is 1.5 inch tweeter, and its used in my Seas a26 with a first xo order and i dont hear any issue, hence why its my go to tweeter for first xo. but kinda pricey imo and would like to find a decent alternative
it seems to be 87 db/w?
That's probably the best there is.. but remember that you've got dispersion loss at the top octave.
If I were "dabbling" I'd probably try-out 6 of these (series-parallel connected) first, with there face-plate trimmed to get them as close together as possible:
https://www.newark.com/mcm-audio-select/53-5155/1-silk-dome-tweeter-6-ohm/dp/84Y8042
-it's a basic ferrofluid Dynaudio rip-off design with some enhancements including increased lower freq. extension and phase-plate for enhanced dispersion. The rising freq. response (due to the lighter diaphragm) should work well with increased pressure on the lower-end from the extra drivers - resulting in something very close to a net 95db with much greater surface-area to "carry" the result of 1st order design.
Maybe this might help Scan-Speak D2904/710003 with Monacor waveguide.
I'm using it in my DTQWT MKII speakers with excellent performance and sound. With waveguide you can get over 95dB. Not cheap but you won't be disappointed.
To get a first order power handling and frequency response flat down to 750 Hz for the tweeter and up to 12 kHz for the midrange, otherwise you do not have a first order accoustical filter response regardless of electrical order.
weird, the link changed.. and it still doesn't work.
Use the Google search link:
53-5155 - 1" Silk Dome Tweeter - 6 Ohm - Google Search
Use the Google search link:
53-5155 - 1" Silk Dome Tweeter - 6 Ohm - Google Search
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Don't forget the effects of diffraction as well (..which tend to "lift" the lower end depending on the baffle profile).
Also note that almost no one does a pure 1st order design with a dome tweeter .."quasi-first order" is probably a better description.
the project would a quasi coaxial setup ala Geithain arrangement. so i only have enough place for 1 tweeter
Id use the omega pro 15 for bass, 1st order xo at 300hz to the Audax 170mo mid first order to a unknown tweeter
Id use the omega pro 15 for bass, 1st order xo at 300hz to the Audax 170mo mid first order to a unknown tweeter
-that's going to be a strange polar response then. Difficult to match the polar response of the monopole tweeter with a cardioid midrange, particularly over such a broad range. A waveguide would be advisable except for the fact that it's going to take-up to much space.
This is going to be a very difficult design to get right, even with a good coaxial drive unit - and that's what you should really be looking for (and one with a broad range compression driver to allow for that 1st order result with correction).
Tough project, but interesting!
This is going to be a very difficult design to get right, even with a good coaxial drive unit - and that's what you should really be looking for (and one with a broad range compression driver to allow for that 1st order result with correction).
Tough project, but interesting!
What do you consider (subjectively) best soft dome (or couple of them) at any price - low or high.
I do like the Morels but everything else was a bit of dissapointment.
Ok, forget my first post and go for the little Sica Tweeter, the one with the square frame, if you can get it in Canada.
I wouldn't wait three days to give the guidelines of your design...
😕🙄
My favorite is the SB STAC - very clear result.. but it certainly doesn't have the damped result that Morel has (..almost a polar-opposite by comparison). Great (subjectively) above 3 kHz for clear soundstage "sorting" with excellent depth portrayal. Some think they don't like the upper treble lift, but listening off-axis (with a bit of resulting depression even with the room contribution) makes this notion fantasy. Instead the real problem is that people use its spl based on its averaged response (as most tweeters), but the problem is that the ear is more "drawn" to all those "peaks" in the non-averaged result - and so they should be targeting an average for the tweeter that is a bit lower in spl relative to the other drivers in the design with a more typical averaged response. It's also not bad down to about 1.8 kHz (unlike most other drivers): the (comparatively) large rear chamber allows for better depth reproduction in this range.
Objectively I'd say it's probably the SS 9700. (..and if I was stuck with a traditional 2-way 2-driver result I'd pair this with the Vifa/Peerless NE180W-08.)
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