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  • 15" Dayton

    Sorry if this repetitive but I'm the FNG so here it goes...will be first time at the home DIY subwoofer and so far I know this much, Dayton 500watt plate amp and I'm building box myself. Want a ported enclosure, clean, low and loud. Mostly music but don't want movies to suffer...which sub and box dimensions you folks think? Appreciate any feedback

  • #2
    Which model of Dayton ?

    Comment


    • #3
      Size of room and budget?

      Nevermind ... looks like your choices are the ultamax or peerless if buying form PE. I'm in the 'you can never have too much power' fan club so my money would ride on something like the behringer dsp6000 instead of that '500 watt' plate amp.
      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
        Really not 100%, I think I will just go for what I really want 15 ultimax....any thoughts on a vented enclosure? Want clean, low and loud

        Comment


        • #5
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          • #6
            How large of a box do you want? It will also work ported but it favors sealed. Feed it plenty of power.

            2.5ft² sealed
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            4ft² sealed
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            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


            • #7
              Which Dayton amp (# please)? Boosted? EQ? Any size constraints?

              Comment


              • #8
                Originally posted by cyclejuice9 View Post
                Sorry if this repetitive but I'm the FNG so here it goes...will be first time at the home DIY subwoofer and so far I know this much, Dayton 500watt plate amp and I'm building box myself. Want a ported enclosure, clean, low and loud. Mostly music but don't want movies to suffer...which sub and box dimensions you folks think? Appreciate any feedback
                I got a UM15 recently on sale, and have been thinking about a 2.5ft^3 to 3ft^3 sealed alignment (thanks Kornbread !) - if you have the space, a ported alignment is about 2x larger than sealed but will go lower. do you have the space for a 5-7ft^3 box?
                What are your goals for size, $$, F3 and SPL? That's the critical variables. Notice on the given simulations, that passband is at 112dB. That will shake your house for movies, but is way too loud for music. If you have more modest SPL goals, you can use a little boost at 25Hz or so, and end up essentially flat to about 20HZ. BTW, a lot of guys think that they need to be flat to 18Hz or so (bragging rights, maybe?), but swept displacement is critical for tactile impact. 30Hz from a 12 inch sub is a lot better than 30Hz from an 8 inch sub.
                I"m planning on using a BASH 500W plate amp with a sealed box, and dialing in a couple of dB boost at about 25Hz, but I don't have the room for a large sub box.

                I think I hear a difference - wow, it's amazing!" Ethan Winer: audio myths
                "As God is my witness I'll never be without a good pair of speakers!" Scarlett O'Hara

                High value, high quality RS150/TB28-537SH bookshelf - TARGAS NLA!
                SB13/Vifa BC25SC06 MTM DCR Galeons-SB13-MTM
                My Voxel min sub Yet-another-Voxel-build

                Tangband W6-sub

                Comment


                • #9
                  Size matters and when it comes to box size in what I would consider an average size room, getting over about 3ft² can be problematic with the AWA, so I didn't model much over that. Like you mentioned, a ported box for it can be huge. Random thought ... what about passive radiators???

                  Do the bash amps spec out near their advertised specs?
                  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


                  • #10
                    I'll add another vote for checking out pro amps. You can get much more for your money, and you can get built in, or rack mount. Double your power at the same price point, and if you go rack mount, if you ever need to do any maintenance on the amp, it's not mounted and wired in the enclosure. Clean power with ample headroom is always going to be a best choice over maxing out every last watt and the distortion and clipping scenario . When you say loud, your loud may be a much different loud than the next guys. Are there particular subs that you have heard that you loved, or didn't like? Are you a give me that Ray Brown get down, or more of a big electronics boom meister? The lower you go, the more power and excursion comes into play. Those sealed options look great, Kornbread, and Don raised great points. Glenn.

                    Comment


                    • #11
                      You could also do something like the micro to the full Marty sub https://www.avsforum.com/forum/155-d...tysub-faq.html
                      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


                      • #12
                        Originally posted by Kornbread View Post
                        Size matters and when it comes to box size in what I would consider an average size room, getting over about 3ft² can be problematic with the AWA, so I didn't model much over that. Like you mentioned, a ported box for it can be huge. Random thought ... what about passive radiators???

                        Do the bash amps spec out near their advertised specs?
                        Totally agree with you about box size and the average living room.
                        I want to go sealed, and don't need "flat to 15Hz".
                        The Bash amps (IIRC) test out a bit less than specced power delivery, but I don't need 1000W (or even 500W)
                        What happened to the OP in this thread?

                        I think I hear a difference - wow, it's amazing!" Ethan Winer: audio myths
                        "As God is my witness I'll never be without a good pair of speakers!" Scarlett O'Hara

                        High value, high quality RS150/TB28-537SH bookshelf - TARGAS NLA!
                        SB13/Vifa BC25SC06 MTM DCR Galeons-SB13-MTM
                        My Voxel min sub Yet-another-Voxel-build

                        Tangband W6-sub

                        Comment


                        • #13
                          I have built a few Ultimax subwoofers and I really think they sound best sealed. Just double your amplifier power to overcome the efficiency loss as they will take everything you can throw at them.

                          Comment


                          • #14
                            Originally posted by 2fast4thelaw View Post
                            I have built a few Ultimax subwoofers and I really think they sound best sealed. Just double your amplifier power to overcome the efficiency loss as they will take everything you can throw at them.
                            Thanks!

                            I think I hear a difference - wow, it's amazing!" Ethan Winer: audio myths
                            "As God is my witness I'll never be without a good pair of speakers!" Scarlett O'Hara

                            High value, high quality RS150/TB28-537SH bookshelf - TARGAS NLA!
                            SB13/Vifa BC25SC06 MTM DCR Galeons-SB13-MTM
                            My Voxel min sub Yet-another-Voxel-build

                            Tangband W6-sub

                            Comment


                            • #15
                              Originally posted by donradick View Post

                              I got a UM15 recently on sale, and have been thinking about a 2.5ft^3 to 3ft^3 sealed alignment (thanks Kornbread !) - if you have the space, a ported alignment is about 2x larger than sealed but will go lower. do you have the space for a 5-7ft^3 box?
                              What are your goals for size, $$, F3 and SPL? That's the critical variables. Notice on the given simulations, that passband is at 112dB. That will shake your house for movies, but is way too loud for music. If you have more modest SPL goals, you can use a little boost at 25Hz or so, and end up essentially flat to about 20HZ. BTW, a lot of guys think that they need to be flat to 18Hz or so (bragging rights, maybe?), but swept displacement is critical for tactile impact. 30Hz from a 12 inch sub is a lot better than 30Hz from an 8 inch sub.
                              I"m planning on using a BASH 500W plate amp with a sealed box, and dialing in a couple of dB boost at about 25Hz, but I don't have the room for a large sub box.
                              Have you looked at the effect the low-pass filter has on the f3? It's interesting. Try a second order vs 4th order at different frequencies below 70hz, and you will see what I mean. I'm trying to get a good blend with "fixed x-overs in my electronics. They vary a lot. I might buy a mini DSP, but prefer the cheaper options. I might even resort to a band-pass design, since it will roll off 3rd order on the high side. In my hypothetical design, the f3 is 22hz I think, and the upper end roll-off -3dB point is 65hz. Ten inch woofer, and 3 cu-ft box if I recall correctly.

                              Comment

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