Announcement

Collapse
No announcement yet.

A small, affordable tweeter that can cross at 2500Hz and is currently available is?

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • A small, affordable tweeter that can cross at 2500Hz and is currently available is?

    Hi Gents,

    The title pretty much says it all. I am fairly sure such a critter does not exist, but thought I'd ask anyway. To define the terms a bit more specifically, affordable would be $25 or less and small woould be under 3 inches OD. I'm planning on pairing it with a Aura NS3 in a 3 liter cabinet and want the low Xover point to avoid the wicked peak at 6000Hz that the current production NS3s all seem to have unless crossed low.

    Best,
    Jay

  • #2
    You did not say which impedance, but this will work.. Dayton Audio ND25FA-4 1" Soft Dome Neodymium Tweeter..https://www.parts-express.com/dayton...eeter--275-059

    Comment


    • #3
      Well $25 is probably the deal breaker... but if you can pony up 8 more clams the SB26STCN is a fantastic tweeter. Its flange is only 72 mm, it can easily cross at 2500 Hz, and it sounds wonderful. I used it in my Jonquils project which got many positive peer reviews.
      Craig

      The lowest possible F3 box alignment is not always the best alignment.

      Designing and building speaker projects are like playing with adult Lego Blocks for me.

      Comment


      • #4
        https://www.parts-express.com/peerle...-ohm--264-1472

        Otherwise the ND28 or (more than $25, less than $26) the NE19 might. I like the DX20 linked above.

        Comment


        • #5
          You don't need to cross that low to avoid a 6kHz peak. Use a third order low pass at 3.5kHz and you'll be fine. It would be a shame to waste that driver's midrange dispersion crossing at 2.5kHz, as well as having to limit the tweeters you can use.
          www.billfitzmaurice.com
          www.billfitzmaurice.info/forum

          Comment


          • #6
            There are a couple of flangeless Peerless tweeters that will work. The OX20 and the XT25SC40.
            Keep an open mind, but don't let your brain fall out.

            Sehlin Sound Solutions

            Comment


            • a4eaudio
              a4eaudio commented
              Editing a comment
              Hi Scott, I'm not sure the difference between the OX20SC02-04 and SC00 but I have some of the SC02's. Ben mentions below that 2.5K may be too low; assuming you have used these, what are your observations and where did yo cross them?

          • #7
            Xt19 is on clearance right now https://www.parts-express.com/peerle...eter--264-1000 Might be a good match. Sent from my Pixel using Tapatalk

            Comment


            • #8
              If CTC spacing is the limiting factor, plastic faceplates are easily sanded to allow spacing closer than the flange diameter would suggest. Cut the driver recesses, put the tweeter in first, lay the woofer on top of it, draw a line, and sand it back using a spindle sander or dremel with the sanding drum running at low speed. Protect the dome with some tape and maybe some plastic if it is proud of the surface of the faceplate. That should open up many other options. I've done this on basically ever speaker where I've crossed in the 3.5k+ range. You can see an example in one of my recent threads: http://techtalk.parts-express.com/fo...eaker-bmr-sb19

              If baffle dimensions are the limiting factor - well, this doesn't help.

              Comment


              • #9
                Thanks for all the input guys. I checked out each of the suggestions and will be ordering the ND 28 F drivers. 2.6 inch diameter, Fs 1100Hz, usable FR 2200-20K, current price $23.98. That fills the bill great.
                Bill, I have tried a 3rd order xover at 3500 using the ND16 and it supresses the NS3 peak quite a bit but IMO not enough. Thus the search for something that will cross even lower. Craig, after researching the SB 26 SCTN, I'm ordering a pair to try in a build with a pair of Peerless 5 1/4 inch HDS GFC mid woofers I have sitting around. It looks like a potentially nice pairing. The SB is too nice and too expensive to use with the little Aura, but it should make an excellent loooking and sounding speaker mated with the Peerless in an 8L cabinet.

                Thanks again All,
                Jay

                Comment


                • #10
                  I think you will really love the SB26STCN-C000-4 tweeters. And they should work really well with your Peerless 830991 woofers. I used those woofers (MTM) in my "Morgans" project. Great midrange clarity.
                  Craig

                  The lowest possible F3 box alignment is not always the best alignment.

                  Designing and building speaker projects are like playing with adult Lego Blocks for me.

                  Comment


                  • #11
                    Originally posted by Drjay View Post
                    Bill, I have tried a 3rd order xover at 3500 using the ND16 and it supresses the NS3 peak quite a bit but IMO not enough.
                    Make it 4th order. All it takes is one more cap, so the added investment is trivial. This opens up the possibility of a small faceless tweeter, which eliminates the CTC issue raised above.

                    www.billfitzmaurice.com
                    www.billfitzmaurice.info/forum

                    Comment


                    • #12
                      I'd think a simple notch filter would help, too.
                      Francis

                      Comment


                      • #13
                        I don't think the SC40/90 really should play that low. About 2.6-2.7k is easier for it. I was not aware the OX20 would reach 2.5k and be happy either.

                        XT19 is better at 3kHz, and too large of a face for the requirement.

                        ND28F-6 is a good choice, but I'll add, that there is a highly regarded MTM with the Aura NS3-198-8A and the HiVi TN25 made by Jim Griffin.

                        I keep waiting for a neo small-faced DX25 to come along.... It would stifle the large flange and low-reach from most other offerings.
                        Later,
                        Wolf
                        "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
                        "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
                        "He is a true ambassador for this forum and speaker DIY in general." -Ed Froste
                        "We're all in this together, so keep your stick on the ice!" - Red Green aka Steve Smith

                        *InDIYana event website*

                        Photobucket pages:
                        http://photobucket.com/Wolf-Speakers_and_more

                        My blog/writeups/thoughts here at PE:
                        http://techtalk.parts-express.com/blog.php?u=4102

                        Comment


                        • #14
                          Originally posted by PWR RYD View Post
                          I used those woofers (MTM) in my "Morgans" project.
                          Got a link, or are they not published? I can't find them here at PETT....
                          Wolf

                          "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
                          "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
                          "He is a true ambassador for this forum and speaker DIY in general." -Ed Froste
                          "We're all in this together, so keep your stick on the ice!" - Red Green aka Steve Smith

                          *InDIYana event website*

                          Photobucket pages:
                          http://photobucket.com/Wolf-Speakers_and_more

                          My blog/writeups/thoughts here at PE:
                          http://techtalk.parts-express.com/blog.php?u=4102

                          Comment


                          • #15
                            How about this one?

                            https://www.parts-express.com/peerle...-ohm--264-1390

                            Comment

                            Working...
                            X