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Usher 9930-20 1-1/8" Textile Dome Tweeter

Brand:|Model: 9930-20|Part # 276-604
The 9930-20 uses a specially coated dome that offers flat frequency response and a very open and detailed sound quality.
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Part # 276-604

Product Details

Usher 9930-20 1-1/8" Textile Dome Tweeter

The 9930-20 uses a specially coated dome that offers flat frequency response and a very open and detailed sound quality. A tuned rear chamber and a lightweight ferrofluid in the gap provide a well-damped, low resonance point, making for easy crossover design. Top-quality materials including precision cast faceplate, machined motor parts, and an injected back cup are found on these tweeters. This tweeter provides a significant improvement over most $30-$50 tweeters.

Product Specifications
  • Tweeter TypeSoft Dome
  • Cone / Dome Diameter1-1/8"
  • Impedance8 ohms
  • Power Handling (RMS)10 Watts
  • Frequency Response1,800 to 20,000 Hz
  • Sensitivity88 dB 1W/1m
Thiele-Small Parameters
  • Resonant Frequency (Fs)660 Hz
  • DC Resistance (Re)4.70 ohms
Mounting Information
  • Overall Outside Diameter4.09"
  • Cutout Diameter2.88"
  • Depth1.81"
Usher 9930-20 1-1/8" Textile Dome Tweeter
  • BrandUsher
  • Model9930-20
  • Part Number276-604
  • UPC844632016417
  • Product CategoryTweeters
  • Unit of MeasureEA
  • Product Rating
    (3 Reviews)
  • Weight1.8 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

View similar products to the Usher 9930-20 1-1/8" Textile Dome Tweeter
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Usher 9930-20 1-1/8" Textile Dome Tweeter
Usher 9930-20 1-1/8" Textile Dome Tweeter is rated 3.3333 out of 5 by 3.
Rated 5 out of 5 by from Strong performerI use this tweeter in my 3 way speaker. is very strong performer, easily can be crossed over near 1khz. In listening tests 4in mid driver could not compete with this tweeter in 1khz+ range, thus low crossover was chosen.
Date published: 2013-10-06
Rated 1 out of 5 by from Left me disappoinntedI got this tweeter as part of the Dayton Audio/Usher UA701CC speaker. This design is crossed over rather low at 2kHz. I externally broke the tweeters and woofers in using filtered Pink Noise running at about 1 Watt for ten hours.Upon re-installing the drivers and sitting down for an anticpated listening, the sound of the tweeters was disappointing. They sounded especially harsh near the 2 kHz crossover frequency and had a dull top octave (10-20 kHz).I tried adjusting the Treble to compensate the high end dullness but that just boosted the harshness at 2 kHz.So, as a comparison test, I installed a pair of Vifa D27TG-35-06 soft dome tweeters. They sounded much better. Better in the 2 kHz crossover range and in the top octave.So , I ordered a pair from PE and now the speakers really shine. An additional bonus is that the Vifa's cost less then half the price of the Usher's.
Date published: 2011-11-16
Rated 4 out of 5 by from very crisp and clearA great speaker and you can't beat the value. No mounting screws were included but not a big problem.
Date published: 2007-09-03
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Product Q&A

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Usher 9930-20 1-1/8" Textile Dome Tweeter

What is a realistic RMS at a crossover point of 2500hz? My plan is to use two 8 ohm tweeters receiving 75 watts at 4ohm. Do you think that these could handle that power?

Asked by: LRSN
Yes this tweeter will handle RMS power at 2,500 Hz.
Answered by: MattP
Date published: 2015-03-02

How should I cross this tweeter over? With a Tang Band 75-1558SE What woofer should I use? thank you

Asked by: Alex16
Questions like this are best answered via phone or email. Please call us at 800-338-0531 x1 or email at and we will be happy to help you.
Answered by: MattP
Date published: 2014-01-23

I purchased a pair of the Usher 9939-20 1-1/8" tweeters and can't find the info I need or get conflicting numbers.

Need:Efective cone diametercorrect fsqtsvas
Asked by: Stewart
Here is the link to the manufacturer specifications:, a tweeter's Qts, Vas, and effective cone diameter aren't listed by the manufacturer.
Answered by: mikevv
Date published: 2011-02-28
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