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  • Newbie seeking opinions before diving in on first build Dayton 8 mtm

    Hello all, I've been lurking these forums and checking out builds for months and months and drooling over some of the designs I see, very amazing to say the least. Thank you to all those who take the time to share.

    I'm wanting to try my hand at a proven design and the Dayton 8 mtm caught my eye since it has a few things that meet my goals Budget friendly and lots of bass, But I do have a few questions.

    1) The crossover.. This is the only part where I feel lost, I've been reading and reading and yet still I'm not sure where to start, concerning how to actually wire the components together And that's assuming I know what parts to use (which I don't).

    Since this is the biggest question I have, I'll leave at that till I get this step sorted.. but here's a bit more of my info..

    My listening space for these will be in my garage where me and buddies usually bs and have a cold one or two and of course blast music anything from 1960's to 1990's metal to old school hip hop.
    The space is 24' x 24' with 8' high drywalled ceiling

    Currently I'm using a pair of Kef q30 with a Denon avr-3801 I scored on CL and while it sounds nice to my ears at moderate levels they do seem to lose there steam when pushed a little harder.

    speakers will be on a workbench so tweeters will be at ear height since we are usually standing anyhow. I'd like to keep the cabinets 36" tall max.. for depth I could go up to 21" or so and will probably keep width 10" to 11" and I'll be using 4" flared ports. Once I decide on exact measurements and box volume I'll figure out tuning.

    Dustin.

  • #2
    Hello and welcome to the world of DIY!

    Here's a link to build threads on these speakers, crossover details are covered:

    http://techtalk.parts-express.com/fo...or-Tritrix-TL=
    http://techtalk.parts-express.com/fo...-dayton-d8-mtm

    And the original page:
    http://www.angelfire.com/music5/audio0/. However, if you try to load this page you will get a Java warning that there could be a security issue with the page.

    As designed, the D8s are about 48" high, maybe a bit large for putting on your bench. If it's, say, 36" high, your speakers would almost reach to the ceiling.

    You could play with the box depth to end up with the same volume but they would still be large cabinets. Do they have to go on your workbench, you seem to have plenty of space to play with?

    If it's bass you're after, and in that space, you might wish to consider a smaller speaker, still with good bass performance: some options discussed in the first link above. I know you want loud, but do look after your ears.

    Lots of great designers and designs on PETT, I'll let others advise you on that.

    What's your budget?


    Geoff

    Comment


    • #3
      I'm wondering about an old school monkey coffin ...
      http://techtalk.parts-express.com/fo...khanspires-but
      http://techtalk.parts-express.com/fo...pico-neo-build
      http://techtalk.parts-express.com/fo...ensation-build

      Comment


      • #4
        Originally posted by Kornbread View Post
        I'm wondering about an old school monkey coffin ...
        Nice thinking, you mean something like these?

        http://techtalk.parts-express.com/fo...rs-based-3-way

        https://sites.google.com/site/undefinition/tarkus

        https://jaysspeakerpage.weebly.com/gts10-bulldog.html

        I should say that I haven't heard any of these speakers, I'm going by the designers' write-ups.

        Geoff

        Comment


        • #5
          Don't sweat the XO. Pick a known design and it will list the XO schematic and the individual parts. Most everyone here can translate the schematic into a wiring diagram and draw a parts layout to help you on your way. The connections between the XO, the incoming amp feed and the individual drivers would be covered in the wiring diagram. You'll most likely need to solder. If that's new to you, let us know.

          So, concentrate on the design that works for you. Since you mention "on the work bench" you might want to stick with front ported designs.

          Here's a Link to the Dayton 8s XO details.

          Comment


          • #6
            Originally posted by Millstonemike View Post
            Don't sweat the XO. Pick a known design and it will list the XO schematic and the individual parts. Most everyone here can translate the schematic into a wiring diagram and draw a parts layout to help you on your way. The connections between the XO, the incoming amp feed and the individual drivers would be covered in wiring diagram. You'll most likely need to solder. If that's knew to you, let us know.

            So, concentrate on the design that works for you. Since you mention "on the work bench" you might want to stick with front ported designs.

            +1 on Mike's crossover advice. I couldn't solder, so my first build was done for me by my local electronics shop - cost $50. For my second build, I decided I'd have a go, looked at the schematic and read some of the many helpful articles and videos on this Forum. I then drew the schematic onto a board and laid the parts out with blue-tack so that they matched the schematic.

            I found that it was easier to think of solder as glue, and what I was doing was gluing things to a board, then gluing the parts together. I also posted photos of my crossover, connected with alligator clips, before soldering everything together and received great advice on what I was doing right/wrong. My crossovers look terrible, but they all work.

            The link is great, even gives you the part numbers.

            Good point about the front port location, I hadn't thought of that.

            Geoff

            Comment


            • #7
              Originally posted by Geoff Millar View Post

              Nice thinking, you mean something like these?

              http://techtalk.parts-express.com/fo...rs-based-3-way

              https://sites.google.com/site/undefinition/tarkus

              https://jaysspeakerpage.weebly.com/gts10-bulldog.html

              I should say that I haven't heard any of these speakers, I'm going by the designers' write-ups.

              Geoff

              I feel the first build link (GRS 3-way) fits the OP's requirements quite well. For bench-top placement (probably some wall loading there), the ability to reach high'ish spl levels, price, and others recommendations of good sound, I'd probably do something like that.

              Looks like the 12"grs poly is now $20, the 5" is $6, and the nd20fa $16.

              Using an iron core 3.5mh $11, air core 1mh $11, 2 resistors roughly $3, $7 for two poly caps, $2 for 100uf NPE, .2mh for $4,( x2), and not counting wood or labor, that's less than $175 for the pair.



              http://techtalk.parts-express.com/fo...khanspires-but
              http://techtalk.parts-express.com/fo...pico-neo-build
              http://techtalk.parts-express.com/fo...ensation-build

              Comment


              • #8
                Originally posted by Geoff Millar View Post
                Hello and welcome to the world of DIY!

                Here's a link to build threads on these speakers, crossover details are covered:

                http://techtalk.parts-express.com/fo...or-Tritrix-TL=
                http://techtalk.parts-express.com/fo...-dayton-d8-mtm

                And the original page:
                http://www.angelfire.com/music5/audio0/. However, if you try to load this page you will get a Java warning that there could be a security issue with the page.

                As designed, the D8s are about 48" high, maybe a bit large for putting on your bench. If it's, say, 36" high, your speakers would almost reach to the ceiling.

                You could play with the box depth to end up with the same volume but they would still be large cabinets. Do they have to go on your workbench, you seem to have plenty of space to play with?

                If it's bass you're after, and in that space, you might wish to consider a smaller speaker, still with good bass performance: some options discussed in the first link above. I know you want loud, but do look after your ears.

                Lots of great designers and designs on PETT, I'll let others advise you on that.

                What's your budget?


                Geoff
                Thanks for the welcome!

                I'll check out those links, Thank you.

                I'd like to have them on the workbench one on each side of the stereo.. the bench is 36" tall so if the cabinet was 36" that would be 6' tall considering were always standing I thought it may work out, but could always change the placement if needed.

                The box I was thinking 11"w x 36"t x 20" deep for 3.5 cubic feet before port, bracing, and sub and a front baffle port.

                For budget I was hoping 200.00 or so for drivers and crossovers not a lot but for my first project I'd like to keep costs down and see what can be achieved on a moderate budget, Then maybe step things up a bit down the road when I learn more.

                well looks like I got some reading to do! Thanks again.

                Dustin.

                Comment


                • #9
                  Originally posted by Millstonemike View Post
                  Don't sweat the XO. Pick a known design and it will list the XO schematic and the individual parts. Most everyone here can translate the schematic into a wiring diagram and draw a parts layout to help you on your way. The connections between the XO, the incoming amp feed and the individual drivers would be covered in the wiring diagram. You'll most likely need to solder. If that's new to you, let us know.

                  So, concentrate on the design that works for you. Since you mention "on the work bench" you might want to stick with front ported designs.

                  Here's a Link to the Dayton 8s XO details.
                  Thanks for the advice, They will be pushed back to the wall so front port is what I'll go with for sure.

                  Dustin.

                  Comment


                  • #10
                    Originally posted by Kornbread View Post


                    I feel the first build link (GRS 3-way) fits the OP's requirements quite well. For bench-top placement (probably some wall loading there), the ability to reach high'ish spl levels, price, and others recommendations of good sound, I'd probably do something like that.

                    Looks like the 12"grs poly is now $20, the 5" is $6, and the nd20fa $16.

                    Using an iron core 3.5mh $11, air core 1mh $11, 2 resistors roughly $3, $7 for two poly caps, $2 for 100uf NPE, .2mh for $4,( x2), and not counting wood or labor, that's less than $175 for the pair.


                    That GRS design does sound interesting, Do you think it would outperform the dayton 8 design?

                    Comment


                    • #11
                      Originally posted by Kornbread View Post


                      I feel the first build link (GRS 3-way) fits the OP's requirements quite well. For bench-top placement (probably some wall loading there), the ability to reach high'ish spl levels, price, and others recommendations of good sound, I'd probably do something like that.

                      Looks like the 12"grs poly is now $20, the 5" is $6, and the nd20fa $16.

                      Using an iron core 3.5mh $11, air core 1mh $11, 2 resistors roughly $3, $7 for two poly caps, $2 for 100uf NPE, .2mh for $4,( x2), and not counting wood or labor, that's less than $175 for the pair.


                      In terms of budget, they look good; when looking at projects, I keep thinking of the $A price instead of the $US. For example, as shipping for the GRS drivers is very high and our $ is going down the S-bend, it would actually be cheaper to for me to build the Tarkus as its drivers are all available from Oz suppliers. Dayton drivers are available locally, which is great.

                      The designers' write up for the GRS 3 way looks like it would fit Dustin's requirements sound-wise, too. The crossover is much simpler and uses fewer parts than the D8s, which is a good thing with a first project. The cabinet for the GRS would be much lighter and more manageable, if that's a concern.

                      Dustin, the D8's original dimensions were 49” x 16.5” x 9.5” (around 4.4 cu. Ft), which means a different baffle than designed; this means that the crossover might need to be changed.

                      Good luck, please keep us posted

                      Geoff
                      Last edited by Geoff Millar; 11-02-2019, 03:24 AM.

                      Comment


                      • #12
                        Originally posted by DSchreck View Post

                        That GRS design does sound interesting, Do you think it would outperform the dayton 8 design?
                        Beauty is in the eye of the beholder. Personally, I'd pick something like the dayton8 for the living room home theater/music and yes, my money would be on the GRS, or another high performing but economical monkey coffin if my requirements were similar to yours. The parts are very reasonable and the crossover about as simple as it gets.

                        Geoff Millar I assumed the OP was in the continental US, I could very well be wrong and as Geoff mentions, S&H can be a huge factor in cost.
                        http://techtalk.parts-express.com/fo...khanspires-but
                        http://techtalk.parts-express.com/fo...pico-neo-build
                        http://techtalk.parts-express.com/fo...ensation-build

                        Comment


                        • #13
                          Originally posted by Kornbread View Post

                          Beauty is in the eye of the beholder. Personally, I'd pick something like the dayton8 for the living room home theater/music and yes, my money would be on the GRS, or another high performing but economical monkey coffin if my requirements were similar to yours. The parts are very reasonable and the crossover about as simple as it gets.

                          Geoff Millar I assumed the OP was in the continental US, I could very well be wrong and as Geoff mentions, S&H can be a huge factor in cost.
                          Good points, Thanks.
                          Also I'm located in the states Washington St
                          Dustin.

                          Comment


                          • #14
                            +1
                            Failure is not an option. It comes bundled with Windows.

                            We are passionate about great sound at whatever level we can afford, so don't let the audio atheists reduce the experience to a set of numbers and squiggly lines. - jbruner

                            Comment


                            • #15
                              Build these, sound better than the D8, I've built both. Tons of bass with a simple stereo receiver no sub needed. Trust me.

                              Theorized and proven: "Zingers", an InDIYana 2019 8" 2-way design... - Techtalk Speaker Building, Audio, Video Discussion Forum

                              What I am making from Wolf's "Zinger" design - Techtalk Speaker Building, Audio, Video Discussion Forum

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