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Old 14th March 2013, 10:03 PM   #1
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Default Currently available high sensitivity tweeter suggestion

Greetings all,

I am looking for a high-sensitivity, i.e., preferably greater than 95dB, not horn loaded, not a ribbon, tweeter that is currently available in the U.S. The planned cross-over frequency is between 4500-5000 Hz.

Kindest regards,

M
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Old 15th March 2013, 02:24 AM   #2
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Default Audax?

The only thing I can think of that comes close, is the Audax models. One has a rising response that *might* work for you but I have not tested them. Only looked at the datasheets. I think troels has used an Audax in one of his high efficiency builds. You should be able to find a source for this in the States.
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Old 15th March 2013, 02:30 AM   #3
Jay1111 is offline Jay1111  United States
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The Madisound Speaker Store

Zaph's measurements show it right at 95db. You're not going to find a non horn loaded dome tweeter with higher sensitivity then right around 95db. This is one of the best tweeters for use above 3khz period.
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Old 15th March 2013, 02:51 AM   #4
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Audax TW025A26 can also be found at Madisound.
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Old 15th March 2013, 02:59 AM   #5
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I would think about an old Isophon or Siemens membran tweeter some hav 98dB.

Or look at PHY site, they have a piezo tweeter with also 98dB, if I am correct.
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Old 15th March 2013, 05:07 PM   #6
badman is offline badman  United States
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Speaker Stuff

80% down is a very decent 96dB soft dome.

Building A Budget (Super?) Tweeter Reaching the stratosphere! Article By Jeff Poth

Hornloaded version.

3.3uF .5mH 2nd order highpass, with a series notch filter AFTER the highpass (1mH, 8Ohm, 5uF in parallel), and a 8 ohm parallel resistor gives a pretty darn flat 94/95dB from 2500 on up.
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Old 15th March 2013, 08:32 PM   #7
RDLewis is offline RDLewis  United Kingdom
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E0055-06 T35C002

Looks good, but expensive !
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Old 16th March 2013, 01:53 AM   #8
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The 19,000 gauss soft dome ADS used in the 1530 and 2030 (and the early Wilsons) could do 95 dB 30 years ago.

Last edited by audiomagnate; 16th March 2013 at 02:08 AM.
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Old 16th March 2013, 04:26 AM   #9
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Gentlemen,

thank you very much for all the suggestions.

Kindest regards,

M
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Old 16th March 2013, 05:23 AM   #10
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Hi M,

Please consider this note a "Monty Phython" Now for something completely different.

When I studied controlled directivity and hearing_error_sensitivity my experiments with soft dome tweeters gave the best results when I researched dome tweeters like the SB29RCDN (*jay1111 *Linkwitz) with steep slopes ~1400Hz to medium diameter midbass speakers(phase plugs helps). The small size and low Fs of the SB29RCDN made it a "standout" in LOW Fs, Xmax, 94db/watt EFFICIENCY, minimal lobing, and SMOOTH with GOOD DETAIL.. not great detail. .. not magic.. just invisible. $60

The 66000 dome always sounded the best in terms of smooth, detail and accuracy. $250

BIG PICTURE: I have never been able to get controlled directivity, or an invisible Xover, or limited lobing, with a tweeter Xover above ~1600 Hz. (13500in_per_sec / 1600_hz / 2x_to_4x_polar == lobing)


Happy to extend post if any interest in Something Completely Different.

WIKI:
Vocal_range is the measure of the breadth of pitches that a human voice can phonate. The most common application of the term "vocal range" is within the context of singing, where it is used as one of the major defining characteristics for classifying singing voices into groups known as voice types.

The following are the general vocal ranges associated with each voice type using scientific pitch notation where middle C=C4. Some singers within these voice types may be able to sing somewhat higher or lower:

Soprano: C4 C6
Mezzo-soprano: A3 A5
Contralto: F3 F5
Tenor: C3 C5
Baritone: F2 F4
Bass: E2 E4

In terms of frequency, human voices are roughly in the range of 80 Hz to 1100 Hz (that is, E2 to C6) for normal male and female voices together.

Fundamental Speech frequency
The voiced speech of a typical adult male will have a fundamental frequency from 85 to 180 Hz, and that of a typical adult female from 165 to 255 Hz.
Attached Images
File Type: jpg sensitive to tones.jpg (108.0 KB, 182 views)
File Type: jpg SB 29RCDN-4.jpg (77.3 KB, 185 views)
File Type: jpg Expensive Best.jpg (86.1 KB, 184 views)

Last edited by LineSource; 16th March 2013 at 05:45 AM.
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