Also when comparing subs, make sure they are similar in size and equal in number.
For example:
a. Comparing subs of similar size; i-e always compare 12inch vs 12inch or say 15inch vs 15inch CONE AREA MATTERS even if they are supplied with same amount of power.
b. Also when comparing subs, the numbers of subs to be compared should be same i-e compare 1x sub with 1x sub or 2x subs with 2x subs. Do not compare 1x number of sub with 2x number of subs of the same size, since cone area will double. Again the CONE AREA MATTERS even if you supply equal amount of power.
Never compare sub of one type with twice the number subs of the other type. This is utterly stupid and noobish...!!!!.
Some people even compare 2x sub of the same size with 4x sub of the same size... LOL ....!!!! Either they are totally unaware of this simple principle or either some particular sub made them scared shitless, so they had to bring twice the number of army to beat em.
CIAO 
