tcast305 Posted October 3, 2018 Report Share Posted October 3, 2018 Hi, Can someone design a ported box for the 2 12" Wolfram AG-12 subs I have coming in? I have a 2014 Mazda 6, my max dimensions for the box are 39" wide x 16" tall x 20" deep. The subs will be fed 2400 RMS. The specs for the subs are the following: RMS Power: 1,250 Watts Sensitivity: 85.3 dB Fs: 30.3Hz Qms: 5.59 Qes: 0.39 Qts: 0.37 Mms: 291.5 gr Cms: 0.09 mm/N Bl: 23.9 Vas: 29.4 L Xmax: 24.5 mm (One-Way) As far as the tuning of the box's Hz, whatever you recommend, it for daily use. My last box I had designed was tuned to 33hz (different car, subs, and amps). Any help would be gratefully appreciated. Thanks. Link to comment Share on other sites More sharing options...
mestapho Posted October 3, 2018 Report Share Posted October 3, 2018 Just designed and built this for my SA12s. Should be in the ball park for the Wolfram’s. 3.5 cubes at 35 Hz similar to your max Link to comment Share on other sites More sharing options...
tcast305 Posted October 3, 2018 Author Report Share Posted October 3, 2018 Mestapho, Thanks for your reply, however the SA 12 and the Wolfram ag-12 as not close to specs as you suggested. The T/S values are very different. All, Also I'm looking for a simple end slot port/vented design (not middle port). Also a cut sheet is required as well. This will be my 2nd box I put together, as I stated before I have had a box designed before, however it had a cut sheet so it was not that hard to build it. Thanks. Link to comment Share on other sites More sharing options...
mestapho Posted October 3, 2018 Report Share Posted October 3, 2018 What’s the recommended box volume for the Wolfram? Link to comment Share on other sites More sharing options...
Joe X Posted October 3, 2018 Report Share Posted October 3, 2018 So here is a suggestion, daily loud aimed, power: to subs rated, amp subsonic filter to 28Hz, minimum port clearance 5 1/2", figure is just an assembly guide: NOTE: If building outside you need to build a cardboard dummy box to test fit in it's way inside. Link to comment Share on other sites More sharing options...
mestapho Posted October 3, 2018 Report Share Posted October 3, 2018 Per Colin Buckeye rec box is 2-2.5 cubes at 30-34 Hz Link to comment Share on other sites More sharing options...
tcast305 Posted October 3, 2018 Author Report Share Posted October 3, 2018 Joe X, Thanks a lot for the box design, much appreciated. Thanks. Link to comment Share on other sites More sharing options...
tcast305 Posted October 3, 2018 Author Report Share Posted October 3, 2018 Joe X, Is it possible for you to give me the cut measurements for the 3 corner pieces for inside the enclosure? Thanks. Link to comment Share on other sites More sharing options...
Joe X Posted October 4, 2018 Report Share Posted October 4, 2018 like this: The width of the 45 inside the port should allow a port width of 5 1/2", notice that the front to back port part has a 45 deg cut, so the 5 5/8" is only valid if you do that 45 deg cut, be aware that if the port width is less than 5 1/2" at the turn that will damage the box performance. If you would like a lower tuning, let me know, anyhow to make that possible the box depth may need to grow 1-2". Link to comment Share on other sites More sharing options...
tcast305 Posted October 4, 2018 Author Report Share Posted October 4, 2018 Joe X, Got it, I spoke with Colin from Wolfram and he suggested that 34hz would be perfect for me. I see the 45 on the front to back port piece. Is there a 45 on the extension piece on the other end or should it be rounded or can it be left alone? Thanks. Link to comment Share on other sites More sharing options...
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