High Efficiency Speaker Asylum

Seeking efficient (near) sub woofer for sealed box

24.61.14.5

Patrick Kopson

I am looking for the high efficiency (95+ dB/W/m) woofer that will reach lowest in a sealed box up to 14 cu ft.
I am doing the tedious work of entering data for all 95+ dB/W/m I can find into winisd and bassbox and comparing the results. Hopefully, others have already done this and can suggest the best they have found.
Thanks.

Follow Ups:

RE: Seeking efficient (near) sub woofer for sealed box - weltersys 09:41:04 03/24/12 (2)
The Eminence 3015LF is pretty efficient, but does not go super low. The Eminence Lab 12 is less sensitive on paper since sensitivity is measured mid band, but a pair will put out a lot more below 40 HZ.

If you are willing to give up 14 cubic feet of real estate, horn loading (technically still sealed) can increase efficiency tremendously over a simple sealed box, but may require time alignment.

If you have to stick with the sealed box idea, think in terms of multiple cones, each doubling of cone area gives another 3 dB efficiency, multiple low Xmax drivers can be far more efficient than a single high Xmax driver.
- multiple comes - hollowboy 02:05:57 03/26/12 (1)
  100% agree with the multiple cones thing.
  
  There is a good selection of drivers sensitivity of 90-ish that will work in ~100L (3.5cu feet), which you can then quad to maintain the same impedance and get +6dB of bass, pushing low end sensitivity into the mid or high 90s.
  
  What's the application (and why 14cu ft)? Does it have to be a single box? Spreading four boxes around the room may give more even bass than one big driver in one big box. Also, if (say) 80kg was your weight limit, you could make four small boxes, eagh weighing 80kg, that would be a lot more rigid than a single 80kg box.
  - cones, I meant cones (nt) - hollowboy 02:08:27 03/26/12 (0)
    nt

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