Tweeter by size - smallest outer diameter

[tktran303]

Hello,

I'm looking to find a small tweeter by outer diameter. My current smallest is the Vifa OX20, with a OD 33.4mm. But I need something than 30.4mm

Anyone used any super small tweeters for small spaces?

1/"2 dome is probably too small for me. I'm looking for something larger, up to 3/4". Soft dome hard dome. Beggars can't be choosers.

Please advise.

 

[A4eaudio]

Maybe this?

https://www.madisoundspeakerstore.c...stics-sb14st-c000-4-1-tweeter-w/grille-4-ohm/

 

[Michael Bean]

Parts Express has a nice selection:
Parts Express

Mike

 

[planet10]

I have a bunch of small ones. 2 are from PE, the other the gold Audax miniDome.

dave

 

[tktran303]

No PE neo tweeter has an outer diameter less than 30mm.

 

[planet10]

dave

 

[rabbitz]

It's already been mentioned but the SB14ST-C000-4 is the smallest I've come across.

 

[tktran303]

Thanks everyone for suggestions thus far.

Can any of these tweeters be used down to 2500Hz?

 

[planet10]

Not likely. None of the little ones i have (maybe te biggest with an 8th order XO or some such.

dave

 

[GM]

Or only need them for a few watts, max.

 

[Paul Joppa]

The Audax at least gives a spec for diaphragm area and xmax, from which you can guess the max SPL for any crossover. It seems to recommend 6kHz, but the resonance is at 3K so a 4th order acoustic Livkwitz-Riley (second-order electric) filter could be made at 3K or possibly 2.5k with an optimized passive assist. Not that crossing small domes low has ever worked for me , though ... :^D

 

[ernperkins]

FWIW. Here's a graph showing the max SPL for the SB14ST and TM010A7 tweeters posted above. The graph is based on Sd and Xmax peak (i.e. Xmax one-way). The SB14ST specs (LINK) are 2.2 cm2 and 0.15 mm while the TM010A7 (as posted above) has 3.1 cm2 and 0.25 mm. Most tweeters I've tested audibly distort way before reaching Xmax so I'd deduct 6 dB to be safe. YMMV!

Note: Excursion limited rms sound pressure level (SPL) for a driver in a closed box at 1 m distance on-axis in half-space

 

[Michael Bean]

Perhaps it would be helpful if you would fill us in on what it is you are trying to do here.

Mike

 

[diyiggy]

I have the Audax, pretty good car tweeter. But it was made long time ago, all the ones still in use need fresh FF. I am not sure it can be open and sealed again.

 

[cyberstudio]

The SB14ST from SB Acoustics is very impressive! What might be the beryllium tweeter with the smallest faceplate please?

 

[diyiggy]

... the smallest Be is from SCANSPEAK.

 

[ChrisABC]

this site shows SB14
https://hificompass.com/en/speakers/measurements?field_brand_tid=All&field_type_woofew_tid=All&field_material_tid=All&field_dimm_value[min]=0.5&field_dimm_value[max]=18&field_spl_value[min]=78&field_spl_value[max]=115&field_impedance_zn_value[min]=0&field_impedance_zn_value[max]=32&field_fs_value[min]=0&field_fs_value[max]=3000&field_qts_value[min]=0&field_qts_value[max]=3&field_vas_value[min]=0&field_vas_value[max]=600&order=field_dimm&sort=asc

https://hificompass.com/en/speakers/measurements/sbacoustics/sb-acoustics-sb14st-c000-4

Pioneer TS-T115 ?

https://www.pioneerelectronics.ca/POCEN/Car/Speakers/Marine-and-Special-Fit/TS-T15

https://www.bing.com/videos/search?...CBF5A8C311CD052A57B8CBF&view=detail&FORM=VIRE

 

[planet10]

dave

 

[jimk04]

Interesting....been looking for tiny tweet to go in some Kef coaxial 5" drivers sans HF I acquired. I've ordered some used Land Rover tweeters off eBay. A lot of them say 'made in france' so maybe an Audax part. And also there is '25' in the part no . So assume it's a 1" some. It comes out of its housing so maybe will 29mm overall. Shall measure dimensions and parameters when I get them. The SB14s were my next choice but I wanted to do a cheap test first. I'm hoping the waveguide effect of the 5" cone will help it in level and reach low enough.

Indeed the Kef NT19 that came in some of these coaxials are about 29/30mm but generally fetch a premium.