Phoenix Gold Phorum

So I have this nice DLS Iridium 12 subwoofer that I want to make a custom sealed enclosure for but as I read the manufacturer recommendations it calls for 1.2 ft/34L. Fine, but oddly enough if you look at the recommendation closely it's for a "single voice coil" configuration and there is no recommendation for "dual voice coil"?? Does this mean I shouldn't utilize both of the voice coils and run it in parallel to 2 ohm or am I missing something here? Even more curious is the recommendation for 10 inch model which gives both options (single and dual) and as you can see there is quite a bit of difference in enclosure requirements which I suppose is due to the higher power from utilizing both coils. Should I suppose the same difference based on the 10" specs (.36 ft <less) and apply it to the 12" model? Tough call for me as I have never heard of purposely wiring a single coil only but then again I don't get out much
Any help is greatly appreciated as I don't have any software to model it out based on all the specs provided as I always go on the enclosure recommendations from the manufacturers (see attached).

Generally speaking there are only very rare cases where you would want to run just one coil of a dual coil sub. These are usually in SQ setups. Any time you run only one coil, you have only half the power handling (maybe less depending on the design and how well the "dead" coil can dump heat. I honestly cannot think of any sub by any manufacturer where they recommended the use of just one coil.

only sub I ever blew was a DVC sub I only wires half up on.

I may just build it around 1 ft and throw plenty of power at it and see what happens. Unfortunately, there is literally no tech support for these as they have been discontinued for over a decade now... Damn Swede's!!