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  1. Carl_Berg

    Opinions on screws vs. simply gluing/clamping joints?

    Personally I hate MDF and use appleply or baltic birch. Being in the Pacific NW appleply is available and is awesome. Nice Maple face and 13 ply in 3/4 and weighs about 60-65% of what the same size would in MDF at many times it's strength. You can also get it all the way up to 1.5" thick (i...
  2. Carl_Berg

    Finally started my Maelstrom

    Hey John, You will love the results. I built 2 140L (external 22" cube) downward firing Maelstroms (bought on preorder) powered by 2 channels of a Parasound 2003a amp (300+ watts 4 ohm per channel) - Needless to say - exellent results. I would like a BFD to even things up a little, but...
  3. Carl_Berg

    The "designing the perfect subwoofer driver" thread...

    Hi Jack, Interesting observations, was this model using the specs in dans note? If so why the discrepency of output vs. what dan had projected. Can you give more details? Also without having to redo your model - what size cabinet was used for each? Also a Q of .7 I would presume to be not...
  4. Carl_Berg

    The "designing the perfect subwoofer driver" thread...

    Hi Brian, I did what you are talking about, not sono tube style (not that their's anything wrong with that). I also have a TN1220 so been there done that, now trying to get rid of that... However I built these as stereo Bass enhance subs for my lex. Still leaves me with an eventual need of a...
  5. Carl_Berg

    The "designing the perfect subwoofer driver" thread...

    I found all this really interesting, all the way up until... Dan Wiggin's last input. 105 db anechoic at 20hz with 1400 watts. Now granted this is in 3 cu. ft - so pretty small. But if you are willing to go a tad larger say 5 cu ft. than why not do this. Maelstrom: "Capable of over 105 dB SPL...
  6. Carl_Berg

    Dual sealed Maelstrom's up and going

    Jack, That is a drag. They can get it it would just result in their supplier probably having to do a minimum order. Minimum orders are usually around 30 sheets, and considering that 1 inch and larger baltic birch does not have all that great a demand, I can understand why. (biggest use i have...
  7. Carl_Berg

    Dual sealed Maelstrom's up and going

    Oh one more thing. James the "kit" I referenced also comes with the rocket portable version. The mounted jig though makes it go really quick. Clamp the jig to your work surface, quick clamp your material, drill, push lever back, slide over, pull lever forward, drill, repeat. Real real quick...
  8. Carl_Berg

    Dual sealed Maelstrom's up and going

    James, that is too funny because my sister was giving me crap exactly about that. (course due to bad family genetics have less hair to blow away these days) I really hope some of the projector technology gets a little better and a lot cheaper soon so that I can truly do up this room like I...
  9. Carl_Berg

    Dual sealed Maelstrom's up and going

    Jack, The Pocket hole jig I bought is the K-2000 pro-pack. You mount the clamp and jig holder onto a scrap piece of plywood and it makes making the pocket holes really quick. Here is a link with a pic, although I was able to find it local for about 120 bucks...
  10. Carl_Berg

    Dual sealed Maelstrom's up and going

    Well after typing a reply and having it suddenly disappear (I hate that) here I go again. Jack the Baltic Birch is a great looking incredibly solid product - biggest drawback I see is it is only available in 5x5 sheets. (pain to transport) and in my case would have created a lot of waste. 4x8...
  11. Carl_Berg

    Dual sealed Maelstrom's up and going

    Hi Jack, I happen to live in the NW and I believe the biggest supplier of Appleply is States industries in Eugene Oregon. Appleply is hard to find but can even be had in 1.25 inch thicknesses, which is also 21 ply. Although finding someone with that 1.25 or even 1 inch is really tough - I...
  12. Carl_Berg

    Dual sealed Maelstrom's up and going

    Well have been a long time lurker but first time poster. I have built 2 separate Maelstrom subs - each a clone of the other. Exterior dimensions are 22" wide and deep and 23.5 inches tall - I did not want a true cube. Each is constructed using one sheet of 4x8 appleply (13 layer maple faced...
  13. Carl_Berg

    Anyone build a Maelstrom yet

    I have 2 Maelstroms sitting at home right now just screaming to be used. Dang these things are HUGE! I plan on building 2 sealed units, about 5 cu feet net after all bracing and taking into account for all driver displacement and such packed with about 5lbs of batting. Should be Q of .6 or so...
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