KnuKonceptz,
I completely understand where you are coming from Spec wise. You will never (i should make that bold) find a speaker that matches the published specs perfectly and I strongly advise anyone with the right test equipment to test every speaker they buy before making a box for it. However, I can guarentee, that Adire, Lambda Acoustics, Stryke and others would not survive in the market they are competing in, if they didn't meet their claimed specs. If you check the DUMAX specs you will see that the sensitivity is very close to the mfg spec. There is another thing that causes confusion. Car audio companies, even respected ones, will sometimes post sensitivity numbers "in-car". I know JL is not one of them, based on their 84 dB (2.83v/1m) sensitivity rating. BTW, adire rates their speakers at 1w/1m which, in essence would be equivalent 2.83v/1m rating of 3dB higher.
The reason that mfgs don't make all their subs DVC is because it doesn't make any sense at all. Why make all DVC woofers?? you are going to do that, you should just make all subwoofers, 15" subs with cast baskets, and dual 4 ohm VC. Standardization doesn't make sense with all of the configurations necessary.
JL Audios response doesn't surprise me at all. Why would they recommend a confiuration that they have a better alternative for?
The only point that I think we are arguing is whether or not using one VC will damage the speaker. The simple answer is no, unless their is a design flaw, it should never cause any physical damage to the speaker.
