MY STS build (Sono-tube-subwoofer)

Discussion in 'Home Cinema Building DIY' started by Mat-Moo, Sep 26, 2004.

  1. Mat-Moo

    Mat-Moo
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    Anyone made one yet? Very tempted to try it out and I've found a reasonable cheap source (I hope) for the tube :) (Details to be released!)
     
  2. IronGiant

    IronGiant
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    If you do I beg you not to post any details anywhere that I might see them ;)

    Sounds interesting...

    dave
     
  3. theritz

    theritz
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    Ditto..... :hiya:

    Toyed with the idea of using 450mm PVC drainage pipe - couldn't locate a short piece though, not that I looked very far... a sonotube design wouldn't fit in my movie room too well, but the idea of making one (or two !) appeals from the diy'er inside me.

    S.
     
  4. Mat-Moo

    Mat-Moo
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    Essex tubes want £35+vat for one column forming tube (delivered), although I'm unsure as to what length that is at present. Depending on the length needed and the chance to cut this up and share it, this maybe a cheaper option! However that is not the source I'm following at present. However what I need to do now is learn how to calculate the volume needed for the sonotube based on the "Rock" sub and tuning to about 20hz (I'd like anyway). I will probably mount the amp internally as well, aka (insert witty lost webpage here!) and hopefully end up with something like http://www.quux.net/roo/diy/sonosub/photos/P0001174.jpg I think I've already got an idea for the sock http://www.tinklersmotorcycles.co.uk/tink/assets/product_images/stockings.jpg but again that's just an idea. Input welcome, especially any good websites you may of bookmarked! e.g. http://www.lungster.com/l/speakers/sonotubefaq.html BTW I want to mount the sub and port in the bottom aka http://www.lungster.com/l/speakers/sonosub/sonosub.html as then the top is kid safe but will have to look nice!
     
  5. slingshot

    slingshot
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    I built one about a year ago, the thread seems to have been archived I can repost pics if you want.

    Volume's easy simply I think it's pi X diameter X length, I did the tuning using winisd and then adjusted it for my room.

    I got the tube from Essex, but if you find a cheap supplier I may be interested in building another one.

    Let me know if you want any more help

    Slingshot
     
  6. Mat-Moo

    Mat-Moo
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    Any pics you have :) Always willing to take input and ideas! There would only be a limited supply, don't know how much yet. The £35+vat from essex tube is for 1m only!
     
  7. slingshot

    slingshot
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  8. Mat-Moo

    Mat-Moo
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    Thanks for that. I'm more likely to go for carpet or sock finish (in black). Just need to find some nice wood for the caps (mdf for internal bits).
     
  9. Mat-Moo

    Mat-Moo
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    Well believe it or not, I found what I needed on E-Bay! The seller says they have more http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=3842386393&ssPageName=STRK:MEWA:IT and I've already been talking to them about the p&p which we are trying to sort out.

    I was also thinking about using slices of treetrunks for the end carp finishers, but I don't know if it ould look correct or not. Beach would be nicer.

    Also I don't have a sub/panel yet... maywell borrow the relax-12 stuff. Only thing is I can't decide on external, or internal mounting of the amp.
     
  10. slingshot

    slingshot
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    That looks like a bargain, that's going to be one huge sub though !

    I went for external amp since it was easy to make a box to house the amp rather than cutting a hole in the tube and putting batons in the sub, and much easier to change/upgrade the amp at a later stage. If you go external all you need to seal is a couple of small drill holes for the speaker terminals.

    Be interesting to see how you mount it though if you for internal
     
  11. Mat-Moo

    Mat-Moo
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    Well I wanted the sub and port in the bottom, so I needed the wider tube. It maybe cut down a bit depending on how bg it looks when it gets here (and what swmbo says) but that's roughly a 300l pipe at the moment.
     
  12. Mat-Moo

    Mat-Moo
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  13. theritz

    theritz
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    That's a neat piece of work, right enough. All it needs is a Sounds Very Serious ( :zonked: ) badge on the front.....

    S.
     
  14. Mat-Moo

    Mat-Moo
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    Well I didn't think it would cost so much, but he reckons the tube ways 20kg and he sent it via TNT today so I should get it on monday at a cost of £20.... Oh well I guess it's still cheaper than Essex tubes! Better buy some mdf now :) and I think the internal mount amp is nice!
     
  15. IronGiant

    IronGiant
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    :suicide:

    Any left over?


    Dave
     
  16. Mat-Moo

    Mat-Moo
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    Not sure yet, depend what internal volume I go for. Although I don't think there will be enough for 2 :(
     
  17. Mat-Moo

    Mat-Moo
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    Holy ****e that IS a big tube! SHMBO said too big, so it will probably be cut in half (150ltr I think that will make it). Going to have to recalculate port lengths etc.
     
  18. Mat-Moo

    Mat-Moo
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  19. theritz

    theritz
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    Mat,

    Boy, that's a hell of a tube !! Looking forward with vicarious delight to following this build.

    Good luck,

    Sean.
     
  20. cosmic023

    cosmic023
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    Mat,

    Pics look good so far, should make a nice home for a 15" Shark sub driver !! :D

    That tube is HUGE, i can now see why the SVS subs look so big. :laugh:

    Look forward to new updated pics.

    Cheers
     
  21. Mat-Moo

    Mat-Moo
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    Well I'm still waiting to find out if the 15" shark is dual 4ohm or dual 2ohm... Having the 100amp 8ohm panel kind of limits me, I wish it was a switchable panel (4/8ohm).

    Been one of those days, got a huge sheet of mdf (2440x1220x18mm) cut into 4 unequal sections (to fit in the car) and started to make my first cut.

    http://matthew.augier.info/index.php?album=/DIY/sts-subwoofer/&image=PICT3279.jpg&resize=original

    Not only did it start to rain the minute I setup outside, but then the router bit broke as well :( so game over till I can replace that bit!
     
  22. cosmic023

    cosmic023
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    Bummer, i'm sure you'll make progress once you've sorted your problems out.

    How do you cut circles with the router ?? Do you have a jig or a home made device ??

    Cheers
     
  23. Mat-Moo

    Mat-Moo
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  24. cosmic023

    cosmic023
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    Thanks Matt.

    Just looks like a modification of the fence, i was gonna make a similar device with some dowling like the one in the links earlier in this thread.

    http://members.optushome.com.au/wcallen/images/ Sub 008.jpg

    I know it better to make several passes when cutting through mdf, i did 3-4 passes with my 1050w router, when i did cut out the back panel.

    The circle jigs are pretty good, but are expensive.
    http://home.flash.net/~jaspera/

    Cheers
     
  25. Mat-Moo

    Mat-Moo
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    Updated pics, done a fiar bit of routing still lots to do to finish off. Also toying with ideas for finishing the sub tops/bottom and main part. Seen some sticky back carpet on ebay, but I'm worried that will make it look a bit carish. Also seen some of the stone effect plasti-kote, that could be cool... or just the standard black paint and a sock!
     
  26. cosmic023

    cosmic023
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    Matt:

    Looks like you've been busy..... :D

    How do you get away with using a router in the kitchen and no mess ??

    When i did the back panel in my sub, i was cleaning up MDF dust for days in the garage !!

    I think black paint and a sock would be best, not sure about the carpet.....i suppose it depends on it's surroundings and how it's gonna blend in.

    Project looks good so far........keep up the good work !! :thumbsup:

    Cheers
     
  27. IronGiant

    IronGiant
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    Good work Mat,

    To get it to blend in, have you considered decorating it as a Pringles or Jaffa Cake tube?

    :oops:

    Ducks and runs for cover....

    :)

    Dave
     
  28. Mat-Moo

    Mat-Moo
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    LOL - I did the routing in the garage, but with a hover attachment. It works pretty well with this new router (Bit of a bargain from argos!) until I made the final deep cut and it was blowing down a lot. So my kit car is covered in crap as well, but no point in cleaning that till I'm done.

    Seen some Pine effect(?) spray as well! black/sock is very traditional though.
     
  29. Mat-Moo

    Mat-Moo
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    http://matthew.augier.info/index.php?album=DIY/sts-subwoofer/

    Done a lot more work, all the major routing (except speaker size) is not done. Biggest problem is that the tube was not round, it's been squashed somewhere along the line, and it's REAL hard to get the end stops in. Need to get the 4" tubing for the port still, and some leg stands and other bits...
     
  30. Mylo

    Mylo
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    top stuff Mat, you have been a busy boy :thumbsup:
     

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