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Dayton ND105-4 vs. Aura NS4-255

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  • Dayton ND105-4 vs. Aura NS4-255

    The Dayton looks as if it is a copy of the Aura, however the Bl is a bit less and Xmax is rated at 4mm whereas the Aura is 5.45. The Aura seems to be an all around better driver. Sensitivity is even better with the Aura at 84 dB/W vs. 82.6 for the Dayton. Both seem to have reasonably smooth response curves.

    Neither has a thermally conductive former, polyimide for the Dayton and Kapton for the Aura.
    Both have aluminum cones and it would seem logical to conduct the heat from the VC to the cone.

    Has anyone done independent tests of these, or real world experience with them side by side?

    I have a pair of the Aura's but have not done anything with them yet and I don't have the Dayton's to compare.

  • #2
    Re: Dayton ND105-4 vs. Aura NS4-255

    The ND-90/91 is Dayton's version of the Aura NS3-193-8/4. There are similar differences. The Dayton's play in a smaller box, but don't have quite the FR. From my search of the NS-4, it looks like things are similar on the Dayton. The Aura's should have a smoother low end FR (less "fish-hook") and be more flexible as to enclosure volume (ported). As a "micro-sub", or mini woofer, without full T/S parameters and simming it, I'm guessing the Aura will out-perform the Dayton. AFAIK, the Aura is NLA, or at least I couldn't find it for sale.

    Comment


    • #3
      Re: Dayton ND105-4 vs. Aura NS4-255

      Originally posted by Whitneyville1 View Post
      AFAIK, the Aura is NLA, or at least I couldn't find it for sale.
      Yep- long time ago.
      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:
      https://app.photobucket.com/u/wolf_teeth_speaker

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

      Comment


      • #4
        Re: Dayton ND105-4 vs. Aura NS4-255

        Or not...http://www.ebay.com/itm/SPEAKER-AURA...-/170756551088

        ...says he has 44 available...

        Comment


        • #5
          Re: Dayton ND105-4 vs. Aura NS4-255

          Originally posted by biscuitbarrell View Post
          Or not...http://www.ebay.com/itm/SPEAKER-AURA...-/170756551088

          ...says he has 44 available...
          That's likely NOS. They have not been at Mad for about 4 years.
          They are no longer manufactured.
          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:
          https://app.photobucket.com/u/wolf_teeth_speaker

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

          Comment


          • #6
            Re: Dayton ND105-4 vs. Aura NS4-255

            That NS4 has the PITA frame that basically makes it impossible to front mount without a good weather strip or RTV gasket seal. I have a bunch of the NS35's...same thing....a bit smaller.
            Bryan K.

            Midwest Audio Club

            Speedster | | The Wildeman | Sean's NLA Towers | , COUGAR II and | Triton | Lithium | J-Boom | Trym MLTL | Docere MLTL

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            • #7
              Re: Dayton ND105-4 vs. Aura NS4-255

              Originally posted by biscuitbarrell View Post
              Or not...http://www.ebay.com/itm/SPEAKER-AURA...-/170756551088

              ...says he has 44 available...
              Those are not the same as what I have here I should have specified the dash number. These are the -4F with aluminum cones and no whizzer.

              Comment


              • #8
                Re: Dayton ND105-4 vs. Aura NS4-255

                Originally posted by Pete Basel View Post
                Those are not the same as what I have here I should have specified the dash number. These are the -4F with aluminum cones and no whizzer.
                I didn't look at the link, and guessed that was what you had. Just like the NS3-193-8, but larger. Again- 4 years ago...

                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:
                https://app.photobucket.com/u/wolf_teeth_speaker

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

                Comment


                • #9
                  Re: Dayton ND105-4 vs. Aura NS4-255

                  Want another pair Pete?

                  Comment


                  • #10
                    Re: Dayton ND105-4 vs. Aura NS4-255

                    Wolf, do you have the T/S parameters for the NS4-255-8 paper cone? For $5 and someplace to start they might be fun to play with.

                    Comment


                    • #11
                      Re: Dayton ND105-4 vs. Aura NS4-255

                      Originally posted by Whitneyville1 View Post
                      Wolf, do you have the T/S parameters for the NS4-255-8 paper cone? For $5 and someplace to start they might be fun to play with.
                      nope.
                      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:
                      https://app.photobucket.com/u/wolf_teeth_speaker

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

                      Comment


                      • #12
                        Re: Dayton ND105-4 vs. Aura NS4-255

                        Originally posted by Whitneyville1 View Post
                        Wolf, do you have the T/S parameters for the NS4-255-8 paper cone? For $5 and someplace to start they might be fun to play with.
                        Unfortunate that they are very low Xmax, high Fs:
                        http://www.roaster-coffee-shop.com/h...ns4-255-8a.pdf

                        Comment


                        • #13
                          Re: Dayton ND105-4 vs. Aura NS4-255

                          Originally posted by Thezeek View Post
                          Want another pair Pete?
                          I'll PM you thanks for the offer!

                          Comment


                          • #14
                            Re: Dayton ND105-4 vs. Aura NS4-255

                            Originally posted by Pete Basel View Post
                            Those are not the same as what I have here I should have specified the dash number. These are the -4F with aluminum cones and no whizzer.
                            Oops!:o

                            Comment


                            • #15
                              Re: Dayton ND105-4 vs. Aura NS4-255

                              why does everyone ignore the (by all rights, completely superior) FR89EX?
                              I am trolling you.

                              Comment

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