timc31610 Posted June 16, 2014 Report Share Posted June 16, 2014 Hey guys, I was playing with a few ideas in my head and wanted to run this by the experts. The pic below is not to any scale, it is just a mockup. The port should be open on the RH side but I could not get Sketchup to cooperate and of course there would be a front on the box. Can anyone see any issue with building a box this way? I am sure there are many but would like some opinions. Thanks guys! My Build Log 94 Civic http://www.stevemeadedesigns.com/board/topic/188644-94-civic-4-door-build-loq-suggestions-wanted-will-be-super-slow-mo/ Faceebook reluctantly Link to comment Share on other sites More sharing options...
Weigel21 Posted June 16, 2014 Report Share Posted June 16, 2014 Looks like the sub would be firing into the port, which I could see creating some real issues. One of the port walls appear to house the sub which obviously cone of the sub will move, changing the tuning of the enclosure. Not to mention the direction the two sound waves will be trying to move. Or I'm just looking at it wrong. Link to comment Share on other sites More sharing options...
timc31610 Posted June 16, 2014 Author Report Share Posted June 16, 2014 You are looking at it right, I didnt think about the sub changing the tuning. I guess thats one strike. My Build Log 94 Civic http://www.stevemeadedesigns.com/board/topic/188644-94-civic-4-door-build-loq-suggestions-wanted-will-be-super-slow-mo/ Faceebook reluctantly Link to comment Share on other sites More sharing options...
Weigel21 Posted June 16, 2014 Report Share Posted June 16, 2014 Interesting concept though. I can see it now, an auto-varying port tuning enclosure. the deeper and harder the sub hits, the lower the tuning. LOL Depending on the Xmax and excursion of the cone, port tuning could be continuously changing up and down +/-2Hz. LOL Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted June 16, 2014 Report Share Posted June 16, 2014 My biggest concern would be cancellation issues between the sub and the port. "Nothing prevents people from knowing the truth more than the belief they already know it.""Making bass is easy, making music is the hard part."Builds: Link to comment Share on other sites More sharing options...
timc31610 Posted June 16, 2014 Author Report Share Posted June 16, 2014 I can see that too Triticum. It was just a thought and I figured I would throw it out there. My Build Log 94 Civic http://www.stevemeadedesigns.com/board/topic/188644-94-civic-4-door-build-loq-suggestions-wanted-will-be-super-slow-mo/ Faceebook reluctantly Link to comment Share on other sites More sharing options...
timc31610 Posted June 16, 2014 Author Report Share Posted June 16, 2014 I may try it out for shits and giggles. My Build Log 94 Civic http://www.stevemeadedesigns.com/board/topic/188644-94-civic-4-door-build-loq-suggestions-wanted-will-be-super-slow-mo/ Faceebook reluctantly Link to comment Share on other sites More sharing options...
Weigel21 Posted June 16, 2014 Report Share Posted June 16, 2014 If you have the time and materials to waste, it may be interesting to try, just to see the results. Could be good for a laugh. Link to comment Share on other sites More sharing options...
bbeljefe Posted June 16, 2014 Report Share Posted June 16, 2014 Cancellation may or may not be a problem but that just depends on how much the back wave is delayed. There is an alignment called a re-entry horn wherein the driver is mounted in the "port" but it takes some considerable calculation to achieve. I wouldn't advise trying it with a conventional vented enclosure unless you're prepared to scrap the whole thing and start over if it doesn't work. If you are... then go for it and let us know how it works. Pics and vids or it didn't happen. :-) Facebook: facebook.com/audioanarchyllc Instagram: audioanarchyllc Youtube: youtube.com/bbeljefe Link to comment Share on other sites More sharing options...
Weigel21 Posted June 16, 2014 Report Share Posted June 16, 2014 I know I could build one out of scrap from where I work, though the material would be FAR from ideal. I could then toss in one of the old subs I have that are piratically good for nothing more than a paper weight. I'd just be out time and cost of glue, perhaps a little speaker wire, if i don't reuse it latter, but I could end up with an enclosure of potentially acceptable structural integrity for such an experiment that has no real support in working out well. LOL Link to comment Share on other sites More sharing options...
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