Dayton RS28F-4 Reference Silk Dome!

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  • dlneubec
    Super Senior Member
    • Jan 2006
    • 1454

    Dayton RS28F-4 Reference Silk Dome!

    You asked for it, you got it. :B

    I've probably missed the discussion on this new unit, but I just now noticed it in the new flyer. 1-1/8" silk dome, 88db sensitivity, FS=541hz for about $48. Plus they have replacement diaphrams already. Boy would I love to try this one out!



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    Dan N.
  • Curt C
    Senior Member
    • Feb 2005
    • 791

    #2
    I'll have a couple next week for evaluation... I'll let you know how it looks.

    I wonder if the fabric diaphrams will interchange with the original metal dome chassis?

    C
    Curt's Speaker Design Works

    Comment

    • dlneubec
      Super Senior Member
      • Jan 2006
      • 1454

      #3
      Originally posted by Curt C
      I'll have a couple next week for evaluation... I'll let you know how it looks.

      I wonder if the fabric diaphrams will interchange with the original metal dome chassis?

      C
      Great, I'm anxious to see how they measure and hear how they sound.

      Wouldn't that be interesting if you pop one of those fabric diaphrams into an existing metal dome chassis! Great question Curt.
      Dan N.

      Comment

      • cjd
        Ultra Senior Member
        • Dec 2004
        • 5568

        #4
        Sensitivity is so low though
        diVine Sound - my DIY speaker designs at diVine Audio

        Comment

        • Silversmoky
          Senior Member
          • Nov 2007
          • 178

          #5
          Originally posted by cjd
          Sensitivity is so low though
          I was surprised as well to see the sensitivity at 88. Still, I do like the looks of this new tweeter. I actually thought it was a misprint when I saw it labeled as a silk dome tweeter in the new flyer!

          Comment

          • JoshJK
            Junior Member
            • Jul 2008
            • 15

            #6
            88 dB seems to be with 1 watt input, not 2.83 volt.

            Comment

            • Jonasz
              Senior Member
              • Nov 2004
              • 852

              #7
              I think it's ugly...but that doesn't mean much if it delivers! :P

              Comment

              • dlneubec
                Super Senior Member
                • Jan 2006
                • 1454

                #8
                One guy over on the PE board reported that he had stopped by PE on his way home and picked up a couple of them. They have the sensitivity sticker on the side as did the RS28A metal domes and I believe both of his were marked 90.2db, FWIW.
                Dan N.

                Comment

                • Mark K
                  Senior Member
                  • Feb 2002
                  • 388

                  #9
                  I'm borrowing a pair of these, hopefully this weekend, so I will likely post some measurements by next week. I should also have an SB dimple dome pair to test.
                  www.audioheuristics.org

                  Comment

                  • Mark K
                    Senior Member
                    • Feb 2002
                    • 388

                    #10
                    I've got a pair, along with some dimple dome and TB titanium tweeters. Look for some new test data in the next week.
                    www.audioheuristics.org

                    Comment

                    • jquin
                      Senior Member
                      • Dec 2006
                      • 135

                      #11
                      Excellent, I HATE metal tweeters.

                      It might make the Modula MT really nice. (Well more to my liking).

                      Sadly I have three RS28A's that need to be doing something. I wonder if it is worth putting them on ebay.

                      Comment

                      • augerpro
                        Super Senior Member
                        • Aug 2006
                        • 1866

                        #12
                        Wonder how different they are from the Usher 9950?
                        ~Brandon 8O
                        Please donate to my Waveguides for CNC and 3D Printing Project!!
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                        DriverVault
                        Soma Sonus

                        Comment

                        • fjhuerta
                          Super Senior Member
                          • Jun 2006
                          • 1140

                          #13
                          I like them. I'm a big fan of metal tweeters, but I wouldn't mind trying them out.
                          Javier Huerta

                          Comment

                          • Mark K
                            Senior Member
                            • Feb 2002
                            • 388

                            #14
                            Originally posted by augerpro
                            Wonder how different they are from the Usher 9950?
                            I've finished testing these, but don't have the results posted.

                            The motor is the same as the nonferro/old ferro RS28A. Double copper which is different from the 9950 IIRC, The consistency between the two is very good and distortion performance is very good even to 1-1.3k.

                            Sensitivity is 90-91db/2.83v

                            Another solid performance. Now if only Usher, er, I mean Dayton can come up with a lens/waveguide that looks, well, remarkably similar to the DXT.

                            Or, even better, a jumbo sized DXT clone, 6-8" mounted on their motor. After all, Usher is really good at copying stuff... :E

                            I've been impressed with the nonferro RS28A's. Looks like the QC has improved significantly.

                            PS I didn't have a new nonferro pair but I suspect the domes are interchangable.
                            www.audioheuristics.org

                            Comment

                            • cjd
                              Ultra Senior Member
                              • Dec 2004
                              • 5568

                              #15
                              Impedance really similar then? Wondering if these are a direct swap for the 28A or not. They sure sound like it, and would provide a really nice additional option for a lot of existing designs. I just might have to snag a pair and try them in my big 3-ways.
                              diVine Sound - my DIY speaker designs at diVine Audio

                              Comment

                              • fjhuerta
                                Super Senior Member
                                • Jun 2006
                                • 1140

                                #16
                                Will they run lower than the metal RS28's?
                                Javier Huerta

                                Comment

                                • Mark K
                                  Senior Member
                                  • Feb 2002
                                  • 388

                                  #17
                                  Originally posted by fjhuerta
                                  Will they run lower than the metal RS28's?
                                  No I don't think so. But the newer, nonferro versions of both the metal and fabric seem more consistent overall. I think you could reliable try 1.3 in a two way.

                                  mark
                                  www.audioheuristics.org

                                  Comment

                                  • Mark K
                                    Senior Member
                                    • Feb 2002
                                    • 388

                                    #18
                                    Measurements up

                                    www.audioheuristics.org

                                    Comment

                                    • Jim Holtz
                                      Ultra Senior Member
                                      • Mar 2005
                                      • 3223

                                      #19
                                      Originally posted by Mark K
                                      Hi Mark,

                                      As always, excellent work!

                                      Can you share any opinions on how the RS28F compares to the HDS?

                                      Thanks!

                                      Jim

                                      Comment

                                      • ThomasW
                                        Moderator Emeritus
                                        • Aug 2000
                                        • 10934

                                        #20
                                        We don't need two threads about the same tweeter.

                                        Given how the threads have evolved merging them would create a mess.

                                        So.....

                                        I'm closing this one, please put further posts in the one running in the drivers wanted section.

                                        IB subwoofer FAQ page


                                        "Complicated equipment and light reflectors and various other items of hardware are enough, to my mind, to prevent the birdie from coming out." ...... Henri Cartier-Bresson

                                        Comment

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