Silver Member Username: Lord_huggingtonOntario Canada Post Number: 516 Registered: Oct-10 | Some wicked plots for the DCON 15 in a 6th order... FS 33.5 Hz VAS 5.02 cuft QTS .44 Flat 20-60 Hz 13 cuft 2.5 cuft 48 hz 20.5 hz Flat 39-91 3 cuft 1.36 cuft 63.22 hz 19.75 hz using the linear teams online winisd plotter thinger. |
Silver Member Username: Joe1234Post Number: 677 Registered: May-09 | I'll tell you which I liked the most, you may find this interesting: http://www.the12volt.com/caraudio/boxes6.asp I think only LEAP can deal with the 8ths. |
Gold Member Username: SouthernrebelMonroe, Louisiana Team Audible... Post Number: 8524 Registered: Mar-04 | A properly designed 6th order can sound good and be efficient. I have 2 DD3515's in a series tuned 6th order blowthru in my Avalanche. It is very flat from 30-70hz w/ a small peak ~40hz and its plenty loud, 152db+ In many cases, I would recommend a series tuned 6th order for blow-thru builds. You can have a smaller cut in the bed/body of the truck and not have to hack the whole back wall out. |
Silver Member Username: Joe1234Post Number: 679 Registered: May-09 | Well WinISD app apparently didn't like those params, nor does offer optimization for 6th order, I came up with some guessed params and what's striking is the +5dB over the ported! You would need to rescue with midbass drivers early (like 50-55Hz). Those boxes are hard to build and incredibly big though, I think I read that there are tunable airports to do some manual alignment. also some analysis instruments would be needed. Yeah it can be done of course but it's a pro job. Also you get horribly high (off the chart) group delay which makes bass sound slow and poorly defined, so not for SQ either. |