Announcement

Collapse
No announcement yet.

Dayton Twin Towers

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

  • Dayton Twin Towers

    First time on tech talk, spent most of my time before on the Elemental Design's form until it was shutdown. I am also apart of the ICIXSound forum and you can also fined the build here.

    Starting a project to build a set of tower speakers for my dad's Christmas present. The plan is to use the Dayton Audio Classic series with two 8 inch drivers, a mid, and tweeter. The box with be 14" X 10" X 48" with a volume of 2.3 cuft and a front facing 4" port tuning the box to 40 Hz.

    Specs:
    Here is the link to the 8" woofer http://www.parts-express.com/pe/show...number=295-310
    The Mid http://www.parts-express.com/pe/show...number=285-010
    The Tweeter http://www.parts-express.com/pe/show...number=275-070

    Here is a concept drawing that show an exploded view of the components for the front baffle. The plan is to wrap the small baffle inserts with grill cloth to cover the speakers and port. Then have the top baffle sandwich the grill baffles to the speaker/port baffle. The front will be a high gloss black finish and the rest of the box will be a satin black.

    Click image for larger version

Name:	Tower.jpg
Views:	1
Size:	53.4 KB
ID:	1182846

    Click image for larger version

Name:	Tower%u00252520Top%2520View.jpg
Views:	1
Size:	51.7 KB
ID:	1182847

    As it stands right now I have the wood cut and just recieved the speakers today so I hope to have some pictures up tomorrow or by the end of the weekend.

    Click image for larger version

Name:	IMG_1614.JPG
Views:	1
Size:	76.6 KB
ID:	1182848
    If we all reacted the same way, we'd be predictable, and there's always more than one way to view a situation.
    What's true for the group is also true for the individual. It's simple: Overspecialize, and you breed in weakness.
    It's slow death.

    //Burn n' Die//Dream Weaver//Maximus//ABC Bookshelf Speakers//Dayton Twin Towers

  • #2
    Re: Dayton Twin Towers

    Welcome. :D :D :D
    Builds - C-Killa - Speedsters - LithMTM - Talking Sticks - Pocket Rockets - Khanspires - Dayton RS Center - RS225/28A - Kairos - Adelphos - SEOS TD12X - Dayton 8 - Needles - 871S - eD6c - Overnight Sensations - Tritrix (ported) - Lineup F4 - Stentorians - The Cheapies - Tub Thumpers - Barbells - Tuba HT - Numerous subwoofers - probably missing a few...... :p

    Comment


    • #3
      Re: Dayton Twin Towers

      I love big speakers:D
      Audiophiles listen to the equipment, not the music.

      Comment


      • #4
        Re: Dayton Twin Towers

        What Joey and Steve said! I'm looking forward to see your build develop.
        If life were fair, Elvis would still be alive today and all the impersonators would be dead.
        ~ Johnny Carson

        Bungelow Ed's Photo Album http://techtalk.parts-express.com/album.php?u=8594

        Comment


        • #5
          Re: Dayton Twin Towers

          Don't know any good reason to tune them that high, personally I'd shoot for more like low 30's for Fb.

          If you've never modeled this, go to www.linearteam.org and get WinISD .

          Search on the net for "Dayton 8" (originally built by Dave Tenney using a crossover developed by Wayne Jaeske - sp?)

          Also, I would NEVER use the Classic mid-dome over the Reference mid-dome, even if it were less expensive, which it isn't ! ?

          Comment


          • #6
            Re: Dayton Twin Towers

            I would NEVER use the Classic mid-dome over the Reference mid-dome, even if it were less expensive, which it isn't ! ?
            I would- Blech RS52!

            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
              Re: Dayton Twin Towers

              Originally posted by Chris Roemer View Post
              Don't know any good reason to tune them that high, personally I'd shoot for more like low 30's for Fb.

              If you've never modeled this, go to www.linearteam.org and get WinISD .

              Search on the net for "Dayton 8" (originally built by Dave Tenney using a crossover developed by Wayne Jaeske - sp?)

              Also, I would NEVER use the Classic mid-dome over the Reference mid-dome, even if it were less expensive, which it isn't ! ?

              The box will most likely end up closer to 35 Hz give or take, I adjusted the length of the box by 1 inch to use the factory 49" sheet, also by the time I add the polyfill and sound dampener, it should be lower.

              Never really enjoyed working with WinISD, I have had better luck just examining the spec sheets but I have used it in the past.

              The classic mid is my bad, at the time I was working on several different dream projects that I wanted to do and ended up ordering that one. I will have to see how it does with the setup and if need be, exchange it for the reference series.
              If we all reacted the same way, we'd be predictable, and there's always more than one way to view a situation.
              What's true for the group is also true for the individual. It's simple: Overspecialize, and you breed in weakness.
              It's slow death.

              //Burn n' Die//Dream Weaver//Maximus//ABC Bookshelf Speakers//Dayton Twin Towers

              Comment


              • #8
                Re: Dayton Twin Towers

                expound

                Comment


                • #9
                  Re: Dayton Twin Towers

                  Started putting the box together, ran into a problem with the baffles not sliding in to the slots, so have to break and go get a chisel. Here are some progress photos:

                  Click image for larger version

Name:	IMG_1615.JPG
Views:	1
Size:	67.7 KB
ID:	1145145

                  Click image for larger version

Name:	IMG_1617.JPG
Views:	1
Size:	55.2 KB
ID:	1145146

                  Click image for larger version

Name:	IMG_1620.JPG
Views:	1
Size:	52.6 KB
ID:	1145147

                  Shot of the baffles not sliding all the way in:

                  Click image for larger version

Name:	IMG_1622.JPG
Views:	1
Size:	54.5 KB
ID:	1145148

                  Good shot of the corner:

                  Click image for larger version

Name:	IMG_1625.JPG
Views:	1
Size:	51.7 KB
ID:	1145149
                  If we all reacted the same way, we'd be predictable, and there's always more than one way to view a situation.
                  What's true for the group is also true for the individual. It's simple: Overspecialize, and you breed in weakness.
                  It's slow death.

                  //Burn n' Die//Dream Weaver//Maximus//ABC Bookshelf Speakers//Dayton Twin Towers

                  Comment


                  • #10
                    Re: Dayton Twin Towers

                    WinISD is one of the most friendly box design programs out there, but if you haven't seen it, there's Unibox, which many prefer for being more comprehensive:

                    http://www.pvconsultants.com/audio/boxmodel/unibox.htm


                    Really the best way to get an accurate representation of performance and tuning. It's all in the XO design, though. And if that's not worked up properly, it won't matter what mid driver you use; it'll end up sounding like, in Wolf's words: BLECH. Nice cabinet work, can't wait to see how it comes together. I've built some DIY projects that use the mid dome and with the correct XO design, it can sound very good.


                    John A.


                    John A.
                    "Children play with b-a-l-l-s and sticks, men race, and real men race motorcycles"-John Surtees
                    Emotiva UPA-2, USP-1, ERC-1 CD
                    Yamaha KX-390 HX-Pro
                    Pioneer TX-9500 II
                    Yamaha YP-211 w/Grado GF3E+
                    Statement Monitors
                    Vintage system: Yamaha CR-420, Technics SL-PG100, Pioneer CT-F8282, Akai X-1800, Morel(T)/Vifa(W) DIY 2-way in .5 ft3
                    Photos: http://custom.smugmug.com/Electronic...#4114714_cGTBx
                    Blogs: http://techtalk.parts-express.com/blog.php?u=2003

                    Comment


                    • #11
                      Re: Dayton Twin Towers

                      Finally got a chance to finish building the boxes, need to do some serious sanding and get the baffles ready to cut for the speakers.

                      Click image for larger version

Name:	20121130_115515.jpg
Views:	1
Size:	48.1 KB
ID:	1145301

                      Click image for larger version

Name:	20121130_133647.jpg
Views:	1
Size:	54.2 KB
ID:	1145302

                      Click image for larger version

Name:	20121130_140744.jpg
Views:	1
Size:	44.7 KB
ID:	1145303

                      Click image for larger version

Name:	20121130_140836.jpg
Views:	1
Size:	39.0 KB
ID:	1145304
                      If we all reacted the same way, we'd be predictable, and there's always more than one way to view a situation.
                      What's true for the group is also true for the individual. It's simple: Overspecialize, and you breed in weakness.
                      It's slow death.

                      //Burn n' Die//Dream Weaver//Maximus//ABC Bookshelf Speakers//Dayton Twin Towers

                      Comment


                      • #12
                        Re: Dayton Twin Towers

                        Made some progress on the speakers, would have had them done besides paint but one of the mid range drivers cone was crushed in.

                        Click image for larger version

Name:	IMG_1626.JPG
Views:	1
Size:	65.3 KB
ID:	1145380 Click image for larger version

Name:	IMG_1627.JPG
Views:	1
Size:	68.0 KB
ID:	1145381 Click image for larger version

Name:	IMG_1628.JPG
Views:	1
Size:	50.0 KB
ID:	1145382

                        Click image for larger version

Name:	IMG_1629.JPG
Views:	1
Size:	28.0 KB
ID:	1145383 Click image for larger version

Name:	IMG_1631.JPG
Views:	1
Size:	34.7 KB
ID:	1145384

                        Did some quick listening and so far sounds good with one speakers but I am excited to see how they sound with two speakers. Plan to clean the boxes up and have them completely finished by next week.
                        If we all reacted the same way, we'd be predictable, and there's always more than one way to view a situation.
                        What's true for the group is also true for the individual. It's simple: Overspecialize, and you breed in weakness.
                        It's slow death.

                        //Burn n' Die//Dream Weaver//Maximus//ABC Bookshelf Speakers//Dayton Twin Towers

                        Comment


                        • #13
                          Re: Dayton Twin Towers

                          Originally posted by Thumper Tom View Post
                          Made some progress on the speakers, would have had them done besides paint but one of the mid range drivers cone was crushed in.

                          [ATTACH=CONFIG]31399[/ATTACH] [ATTACH=CONFIG]31400[/ATTACH] [ATTACH=CONFIG]31401[/ATTACH]

                          [ATTACH=CONFIG]31402[/ATTACH] [ATTACH=CONFIG]31403[/ATTACH]

                          Did some quick listening and so far sounds good with one speakers but I am excited to see how they sound with two speakers. Plan to clean the boxes up and have them completely finished by next week.
                          Big and tall speakers!!!! Nice!!!! Can't wait to see it when its done.)

                          Comment


                          • #14
                            Re: Dayton Twin Towers

                            Not to criticize ('cause you probably just don't know - 'cause you haven't read "Speakerbuilding 201" - which you should), but you might want to redesign your baffles. It's BEST to keep you drivers close together. The woofers (as a pair) CAN be farther away (this is all mathmatically based on the crossover freq. - which you don't know yet because you have no crossover design, and the SOS - which is about 13,500 ips - which you'd know if you'd read "Speakerbuilding 201"), but if you divide 13500/2000Hz (a typical crosspoint for the tweeter) you get 6.75". THAT would be the maximum distance you should have C-C between the tweeter and the mid. What's YOUR center-to-center distance? It looks a LOT bigger.

                            Even if the baffles are complete, and can't be removed, it would still behoove you to plug up the mid hole and redrill, getting those 2 drivers as close as possible, unless you're already under 6.75".

                            Comment


                            • #15
                              Re: Dayton Twin Towers

                              Did some scaling off your pics.
                              Looks like the tweeter/mid distance is about 7-1/2", setting THAT Fc near 1.8kHz, which is about the limit for the -070 "Silky". You could have gotten down to more like 4-1/2" (using the truncated "Silky - which I think was going for $12) which would have let you use a lot more of the mid-dome's range, up to about 3kHz.

                              Larger problem is that the dome mid shouldn't go below 500Hz (that dome should "ideally" cover 3 octaves - which you'd know if . . . , 500 to 4000 Hz would be sweet, but you'd need a smaller faceplate tweeter).

                              Your distance down from the center of the mid-dome to you lower woofer looks to be almost 19". 13,500ips / 19in = 700 cps.
                              So your mid needs to run from 500 to 1800 Hz.

                              Also, most boxes (today) are deeper than wide. Personally, I'd have turned your box "sideways" so it was 10"w x 14"d. That way you'd have 4 more inches available for port length. Dual 8's really beg for a 4"dia. port (like Dave Tennie's "Dayton 8's"). Looks like even a 7" long vent could barely fit in there w/out an elbow. Also, I figure your volume at under 2.4 cf, which is pretty small for vented dual 8s. You'd have ended up with 2.9 cf if you hadn't triple-baffled.

                              Comment

                              Working...
                              X