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Dayton Audio RS28F-4 1-1/8" Silk Dome Tweeter

Brand:|Model: RS28F-4|Part # 275-140
Dayton Audio's Reference Series tweeters are designed to complement the RS woofers. The RS28F-4 incorporates an optimized silk diaphragm that combines low mass, superb damping, and a carefully calculated dome profile.
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List Price$79.99
Regular Price$54.75
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Part # 275-140
  • 1-1/8" silk dome provides articulate yet non-fatiguing HF reproduction
  • Tuned rear chamber and excellent power handling support low, low crossover points
  • High flux density/low-distortion motor system with copper shorting rings
  • Cast aluminum faceplate with protective mesh grill
  • Perfect for home theater or audiophile speakers

Product Details

Dayton Audio RS28F-4 1-1/8" Silk Dome Tweeter

Dayton Audio's Reference Series tweeters are designed to complement the RS woofers. The RS28F-4 incorporates an optimized silk diaphragm that combines low mass, superb damping, and a carefully calculated dome profile. A tuned rear chamber, supported by a rugged diaphragm assembly, enables crossover possibilities in ranges as low as 1,000~1,100 Hz (with the appropriate filter). This unique 1-1/8" silk dome and a state-of-the-art motor system employs copper shorting rings to ensure that high frequency content is reproduced as transparently as possible, assuring studio-quality performance. RS28F-4 tweeters not only match the look and features of the RS woofers but also the clean, detailed, and uncolored sound that characterizes the entire series.

Product Specifications
  • Tweeter TypeSoft Dome
  • Cone / Dome Diameter1-1/8"
  • Impedance4 ohms
  • Power Handling (RMS)100 Watts
  • Frequency Response1,200 to 20,000 Hz
  • Sensitivity90.6 dB 2.83V/1m
Thiele-Small Parameters
  • Resonant Frequency (Fs)545 Hz
  • DC Resistance (Re)2.80 ohms
  • Voice Coil Inductance (Le)0.34 mH
  • Mechanical Q (Qms)2.30
  • Electromagnetic Q (Qes)1.00
  • Total Q (Qts)0.70
Mounting Information
  • Overall Outside Diameter4.13"
  • Cutout Diameter2.88"
  • Depth1.81"
Dayton Audio RS28F-4 1-1/8" Silk Dome Tweeter
  • BrandDayton Audio
  • ModelRS28F-4
  • Part Number275-140
  • UPC844632080371
  • Product CategoryTweeters
  • Unit of MeasureEA
  • Product Rating
    (22 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.

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Dayton Audio RS28F-4 1-1/8" Silk Dome Tweeter
Dayton Audio RS28F-4 1-1/8" Silk Dome Tweeter is rated 4.8636 out of 5 by 22.
Rated 5 out of 5 by from Better then it's aluminum brother.This tweeter holds down 2.5k and up range in my "Redwoods" WMTMW. I've used both versions of this tweeter and prefer the silk over the aluminum. The silk has an airy sparkle and extension that seems to be lacking in the aluminum version. I never liked crossing these 1 1/8 tweeter under 2k. Although I understand the benefits of doing so. Dr. Ks MTMs use the uliminum version crossed about 1800hz iirc. Those speakers always sounded good to me untill you start to give them some real volume. So when I built the Redwoods I wanted a stress free tweeter. The result is three years later they sound as good as the first day I listened to them.
Date published: 2015-04-27
Rated 3 out of 5 by from RS28F-4 Had issue out of the boxA WT2 test revealed significant kinks in the impedance and phase plots between 1 and 2 kHz. I returned it and rec'd another. It had the same issue. I have yet to test acoustically to determine the extent the imp. and phase anomalies might have on the tweeter's acoustice frequency response.
Date published: 2015-02-13
Rated 5 out of 5 by from Great SoundI have not run any electronic tests on this unit, but is has a very smooth sound. I use a 3KHz crossover frequency and it provides a very nice extension to the high end of a relatively inexpensive pair of bookshelf speakers (plus a first class subwoofer)
Date published: 2015-02-06
Rated 5 out of 5 by from Dash tweetsJammed these puppies into the dash of my 2014 mazda 6 with the assistance of the ole' dremel. Running 3 way active off a pioneer deh-80prs. Sounds creamy.
Date published: 2014-08-20
Rated 5 out of 5 by from Gorgeous tweets that look like an Usher Product.I bought 4 of these for two different projects. A two way with the RS28f-4 and HiVi F8's. The other project will be a three way with an RS180-8 7 in. midbass and RS270-8 10 in. woofer. I was thinkin a 2k highpass on tweet, 2k lowpass on mid, and 250-500 hz highpass on mid, 250-500k lowpass on woofer; and notch filters where necessary. Probably 2nd order electrical all around or whatever ends up working best; level freq resp, in phase between drivers, and avoid any troublesome distortion. A stepped baffle will help with phase alignment hopefully. You all know the process. I can't wait. Hope this tweet is even better than the discontinued Vifa PL27 and D27's tweets in my previous projects. (D27/P17WJ. and PL27/HiVi F8.) Thanks for making world class products for not too many duckets. Maybe I'll post my projects results. Time to bust out Soundeasy again.
Date published: 2014-08-13
Rated 5 out of 5 by from Awesome!I bought these about a month ago. This might be the best tweeters I have ever owned. It took a few days for them to break in and they keep getting better after that. The fact that you can crossover very low with these tweets is great. I tried them down to 1500 Hz with no problem but ended up with 1900 Hz in my system. They sounded best there.I love these tweets! Very smooth, extended,sweet,clean,detailed and non fatiguing! Even at higher volumes! They don't seem to change timbre/low distortion levels.I can't think of anything I don't like about them and for the price there might be 1 maybe 2 tweets out there to compare but, the ones I am thinking of won't crossover as low as this one.Just get them! You won't be sorry!
Date published: 2014-07-07
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Product Q&A

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Dayton Audio RS28F-4 1-1/8" Silk Dome Tweeter

I have these tweets but the top mounting plate is too large to fit in the door.  I was going to grind them down.  Can I just take off the front plate?

Asked by: Traderfjp
Yes the face plate is removable and we would recommend removing it if you plan on modifying them.
Answered by: MattP
Date published: 2016-01-15

I added an Art CX311 active crossover to my system to manage a sub woofer - am now considering adding mid &high frequency drivers as satellites .  Please comment on the suitability of this product for this agenda.... TX

Asked by: BD Johansen
Please contact our tech support for more help with this question, or 800-338-0531 x1.
Answered by: MattP
Date published: 2015-12-30

Can I use these tweeters on the same crossover as the 8 ohm Dayton silkies? Or does the crossover have to be adjusted? I just wanted higher power handling.  I'm using them with 2 Dayton 8" classic woofers mtm in a 4.4 cube box like the Dayton 8 project.

Asked by: Jaroldo84
The crossovers would need to be redesigned to work with the new tweeters.
Answered by: MattP
Date published: 2015-12-03

I have built seven speakers, each having one of these tweeters. I noticed that each tweeter had a notation that was circled by hand. I would like to know if it would help in matching pairs of the tweeters if I matched the circled notations?

Asked by: Craig A
It will help match the sensitivity, but the differences here are going to be negligible at best anyway so you probably won't notice anything.
Answered by: MattP
Date published: 2015-11-12

Do these have rebuild kits?

Asked by: Kevinharris
Yes replacement diaphragms are available for these
Answered by: MattP
Date published: 2015-09-21

Sirs, What size connectors do I need for these tweeters? Thanks

Asked by: Xixix
These tweeters use .25" terminals.
Answered by: MattP
Date published: 2015-04-24
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