Announcement

Collapse
No announcement yet.

TMM or MTM design using Dayton RS woofers?

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

  • TMM or MTM design using Dayton RS woofers?

    Curious if there are any good TMM or MTM designs using Dayton RS180 or similar woofers and not using tweeters like RS28A/F, which are no longer sold?
    Something like Amigas may be, but more power?

  • #2
    Originally posted by Tigeroner View Post
    Curious if there are any good TMM or MTM designs using Dayton RS180 or similar woofers and not using tweeters like RS28A/F, which are no longer sold?
    Something like Amigas may be, but more power?
    Curt Campbell's "Slapshot" MTMs use RS180P woofers and Morel tweeters, they're great speakers. We use them as our main/reference speakers and love the sound. Everything's in balance, and they work extremely well with jazz, classics and pop/rock. Powered with an old RX596 Yamaha with 80 watts RMS/ch.

    However, they refuse to play English/Celtic folk music or Kylie Minogue, I've no idea why this is so and will check with Mr Campbell. His crossover must have some sort of good music/bad music inbuilt filter!

    With the RS180Ps they look great, too. Seriously, I can't recommend them enough.



    Geoff
    Last edited by Geoff Millar; 09-13-2019, 04:13 AM.

    Comment


    • #3
      MTM IMO sounds more rounded and full.

      Comment


      • #4
        Thank you, Geoff.
        I was thinking about aluminum, not paper RS180s, but this is an interesting option too.

        Comment


        • #5
          Close.

          Zaph|Audio - ZDT3.5

          Comment


          • #6
            Jon Marsh's Modula MTM had the Seas TBFC, and they do sound very good.
            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


            • #7
              Originally posted by Tigeroner View Post
              Thank you, Geoff.
              I was thinking about aluminum, not paper RS180s, but this is an interesting option too.
              If you have the aluminium coned RS180, I think there's also a design for an MTM with a VIFA DX25 tweeter. Not sure of the details but you could Google it.

              According to Dayton's specs, the 180Ps are a paper/Kevlar/fibreglass cone blend, which I guess makes for a more rigid cone than pure paper.

              PE's product page has several excellent product reviews and several of those are for their use in the Slapshots.

              Geoff
              Last edited by Geoff Millar; 09-13-2019, 06:11 PM.

              Comment


              • #8
                Originally posted by Wolf View Post
                Jon Marsh's Modula MTM had the Seas TBFC, and they do sound very good.
                Later,
                Wolf
                Ben, are you sure TBFC? I have the TDFC in the modula mt.

                Comment


                • #9
                  There were multiple versions of the Modula RS180 series.
                  I know it's blurry, but this is the first mention I found of Ed's towers in a search:
                  http://techtalk.parts-express.com/fo...ual-walkaround

                  It is definitely the 27TBFC. I was able to find a picture of Ed's build that was not molested by Photobucket's schmearing campaign:

                  Click image for larger version

Name:	2679274911_aef43eb7a8.jpg
Views:	1
Size:	56.5 KB
ID:	1421495





                  I also found an old list of mine of RS180 MTM designs:
                  Natalie P RS28?
                  Dr. K RS28 used here
                  Jeff B (For shielded RS28)
                  RJB MTM and 2.5 MTM
                  John Marsh's Modula MTM (Typically RS28 or TBFC)
                  Dave Brown's MTM
                  Dr. Thor

                  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


                  • #10
                    Ben, I thought I may have been confused since I have the MT version and you mentioned the MTM. Jon's posts at HTGuide list both versions using the TDFC. He also offered solutions for the RS28A.
                    http://www.htguide.com/forum/showthr...uction-Details

                    The photo you posted of Ed's MTM does look more like an aluminum driver so it is likely the TBFC. It must be something other than the Modula MTM.

                    Just want to make sure new builders order the correct tweeter for the build.

                    Marv

                    Comment


                    • #11
                      I was reading Jon's posts at HTGuide and I saw him saying that TDFC and TBFC are interchangeable.
                      http://www.htguide.com/forum/showthr...dula+tdfc+tbfc
                      http://www.htguide.com/forum/showthr...dula+tdfc+tbfc

                      Comment


                      • #12
                        Originally posted by Tigeroner View Post
                        I was reading Jon's posts at HTGuide and I saw him saying that TDFC and TBFC are interchangeable.
                        http://www.htguide.com/forum/showthr...dula+tdfc+tbfc
                        http://www.htguide.com/forum/showthr...dula+tdfc+tbfc
                        Good catch, Tigeroner.

                        I followed your first link and found this quote in post 66:
                        The other "champion" small tweeter is the Seas H1212, which could be substituted for the 27TDFC; it's aluminum dome, The other "champion" small tweeter is the Seas H1212, which could be substituted for the 27TDFC; it's aluminum dome, physically and electrically compatible, and voices a little more like the RS28a to my ears. If you want to split the difference, try the H1212/27TBFC. Price is certainly right. And it's a WAY better performer than the venearble H400 I used to use back in the 90s'.e, and voices a little more like the RS28a to my ears. If you want to split the difference, try the H1212/27TBFC. Price is certainly right. And it's a WAY better performer than the venearble H400 I used to use back in the 90s'.

                        I can only assume Jon means it is a drop in replacement when he says it is "physically and electrically compatible".

                        Comment


                        • #13
                          Marvin,

                          If you look at the other link, he also wrote this:
                          "The 27TDFC and 27TBFC are essentially "interchangeable". They're NOT interchangeable with the RS28a, which has a substantially different impedance (about 3.5 ohms, versus ~ 6 ohms). The first crossover is suitable for either of the Seas models - the second crossover is explicitly for the RS28a."

                          Comment


                          • #14
                            Good to know. Thanks.

                            Comment


                            • #15
                              Wolf,

                              Thanks for the responses and for the design list.
                              I researched it a little and it looks like the only SEAS versions are Modula and Pete Schumacher's Dayton/Seas Home theater.
                              Modula XO is ridiculously expensive - significantly more bucks than the drivers themselves... Will have to make a special occasion purchase probably.

                              Comment

                              Working...
                              X