Home Forums DIY Speakers and Subwoofers Small tower build

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    jriver146
    Member

    I want to build some small towers for my dad. They will be for listening to music. I have a peechtree decco125 that I am going to use to power them. I am trying to use off the shelf stuff from parts express and I have narrowed it down to this woofer

    Dayton DS215-8

    and this tweeter

    Peerless DX25TG59-04

    I was finally able to enter the values of the sub into winISD correctly I forgot to change some stuff to the correct type of measurement and this is what I got. Not really sure what I am looking at lol so I wanted to ask you guys if it looks good to you. Any and all feedback is appreciated.


  • Small tower build

  • 123toid

    Administrator
    February 22, 2021 at 11:05 pm

    Honestly, I am not sure they are a good match together.  Just looking them over briefly the sub will want to be crossed over around 1-1.5Khz in order to prevent beaming.  Although it looks like the tweeter should be able to handle it, Peerless keeps stating only a 2.5Khz crossover point.  I don’t have experience with that tweeter, so I am going to take Peerless’ word that there is a reason why (distortion most likely). If you want to crossover a large 8″ woofer, I would look at a different tweeter that can crossover lower.  

     

    A few tweeters to consider: Maybe one of the new GRS Planar: https://bit.ly/2NRAuzu

    Or the Peerless Corundum: http://bit.ly/2X9YIoB

    Dayton Reference: http://bit.ly/2vDDUK0

     

    Another option would to go with a smaller woofer or add a midrange. 


    Small tower build

  • jriver146

    Member
    February 23, 2021 at 1:17 am

    @123toid

    Aww man, I feel like I am at square one again lol. Maybe if I give more of a description of what I want to do you guys can help me out better. My dad listens to mostly salsa from the 70’s, jazz, and sometimes some 80’s-90’s rap. I don’t want to make the towers taller than 34-35″ and I want to keep a 8″ driver maybe go down to 7″. I am not opposed to adding a midrange driver either. And I wanted to keep the speaker budget to around $200 $250 max.

  • tvor-ceasar

    Moderator
    February 23, 2021 at 2:14 am

    @jriver146 Is that total for the pair or per speaker?


  • jriver146

    Member
    February 23, 2021 at 2:17 am

    @tvor-ceasar 

    For the pair of subs and tweeters total.

  • tvor-ceasar

    Moderator
    February 23, 2021 at 5:38 am

    @jriver146 and @123toid

    Budget is always a challenge. How about a nice 3 way design?

    Start with the woofer. 

    Dayton Audio DC200-8 in a 2 Cu.Ft. box which can get you the approximate tower height you want. Ported tunes to about 28 Hz. Cross at 800 Hz.

    Visaton M 10 4″ Sealed Back Midrange – Run from 800-4500/5000 Hz (subject to adjustment)

    HiVi T20-8 3/4″ Textile Dome Tweeter – Will pick up after the midrange

    Now these are pretty closely matched in sensitivity, so there shouldn’t be much attenuation needed. And if you look at their graphs, it should be a pretty nicely put together speaker. All for around $50 per side, minus crossover parts.


  • 123toid

    Administrator
    February 23, 2021 at 10:07 am

    @jriver146

    This is definitely doable. True voice of reason already gave some ideas of some ways it can happen. There’s a couple ways we can do this. Keep in mind typically the more expensive the driver, the less expensive the crossover. Or at least that’s the hope. That doesn’t always equate. 

    Let me get some thought to the different drivers. I don’t think you’re going to have a problem with that budget at all. 


  • tvor-ceasar

    Moderator
    February 23, 2021 at 5:17 pm

    @123toid I had looked at some more expensive drivers, but a lot that had a chance were on back order, mostly the mid-priced ones.

    Surprisingly, PE suggested the woofer I linked exactly because what I was looking at was out of stock. Same power ratings, but it digs a little deeper for a less expensive price.

    The Mid, well I looked at a fair number of graphs, and this had the best one in the frequency range I was interested, plus it has good power handling and comparable sensitivity.

    Same with the tweeter. Believe me, I was up in the Morels looking at graphs and specs and backed my way down.

    Now if the graphs and specs are correct and honest, these “should” play well together. That remains to be seen.


  • jriver146

    Member
    February 23, 2021 at 9:21 pm

    You guys are awesome thanks for all the info! I will order the speakers tonight. Is there a off the shelf crossover I can get or is there a bunch of parts I can get to build my own. I am not afraid of soldering been doing it a while with rc cars.

  • tvor-ceasar

    Moderator
    February 23, 2021 at 11:22 pm

    Let’s see what @123toid can come up with. I spent like 1/2 to 3/4 hour before bed going through the drivers. I’d have to throw the info into WinISD and Xsim to get a better idea of how they play. That’s still an hour or two just to get to a further decision making point. Might find something upon further design that may raise eyebrows, either good or bad. Won’t have a further opinion until then. 

    It’s not that I don’t want you to get started, but I’d rather do a bit more investigation to make reasonably sure they’d be a decent investment.


  • jriver146

    Member
    February 24, 2021 at 12:11 am

    @tvor-ceasar

    i understand lol, it’s exciting!

  • 123toid

    Administrator
    February 24, 2021 at 1:21 am

    Here’s a couple options already designed options. Me and Kirby Meets Audio designed this tower a while back that comes in right around $250 (although – I haven’t priced it recently).  Might be cheaper with a coupon. There is also Paul Carmody’s Amiga’s tower speakers. Both his and ours are very similar. 

    However if you really want to design your own, I would stick with a two way for your first speaker.  You could use either a 7″ or 8″ woofer with the peerless xt25 or bg60.  I have used the 60 quite often and love it.  Both are very flat and using a 3rd order should be able to crossover low enough.  The 60 I know will. The 25 looks like it should, I just don’t know about the distortion profile. But I think you will be happy with either one. 


  • tvor-ceasar

    Moderator
    February 24, 2021 at 4:14 am
    Posted by: @123toid

    Here’s a couple options already designed options. Me and Kirby Meets Audio designed this tower a while back that comes in right around $250 (although – I haven’t priced it recently).  Might be cheaper with a coupon. There is also Paul Carmody’s Amiga’s tower speakers. Both his and ours are very similar. 

    However if you really want to design your own, I would stick with a two way for your first speaker.  You could use either a 7″ or 8″ woofer with the peerless xt25 or bg60.  I have used the 60 quite often and love it.  Both are very flat and using a 3rd order should be able to crossover low enough.  The 60 I know will. The 25 looks like it should, I just don’t know about the distortion profile. But I think you will be happy with either one. 

    I am inclined to concur. After fighting with the traced FRD and ZMA files for the mid and tweet I listed, I finally got something fairly ok, except for a big bump at ~700hz and a smaller bump at ~4025 HZ. Xover points were 800 Hz and 4.5 kHz, based on the graphs I saw.

    Here’s all the info I got together, FRDs and ZMAs, including adding the woofer to WinISD database format, If you are so inclined to play with them.

    1696-3-way-driver-info.zip


  • jriver146

    Member
    February 24, 2021 at 4:14 am

    @123toid 

    I am not sure if it’s my browser but I cannot see the build plans for Kirby and your design I can only see the crossover layout. And it looks like the woofer is not in stock.😔

  • 123toid

    Administrator
    February 24, 2021 at 4:23 am

    @jriver146

    I forgot to mention, both the Amigas and that build used the same box, so you would just make the Amiga box. The Amiga would be very similar, just using a different tweeter. But if you can’t et the woofer, then you are stuck either way with those designs. 


  • jriver146

    Member
    February 24, 2021 at 11:30 am

    @TVOR-Ceasar @123Toid

    I am going to go ahead and get the Amiga kit so I can put it together for my dad and I will probably just go ahead and start working on that three way for myself as a weekend project hopefully my wife doesn’t kill me haha.

     

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