It's not meant to be overwhelming. This is the one forum who will help you do it right. There are multiple ways to get louder, and just swapping subwoofers is not really the best way. Also, it's not about becoming an expert, but this forum will help you make the best choice and in the end you will understand why. Modeling will help make an educated decision with the subwoofers and the air space available with in your goals. As mentioned earlier, a bunch of random suggestions (like you will find on other more basic forums) will do you know good. That is why you will see in other forum topics on here, when a question similar to this one is asked, people will ask for more information to aid in making the best suggestions based on experience and modeling etc. As for T/S specs, think of them as an aptitude test results. They will tell the tendencies or preferences of the subwoofer though its mechanical and electrical make up. Another wonderful aspect of this site, is that you will be introduced to non-mainstream brands of which you will get much greater value in the subwoofer selection as non-mainstream brands do not have to charge for the brand name. There are many ways to get louder; More power (least efficient approach and puts the more strain on your electrical system)Larger subwoofers (more efficient approach)Additional subwoofers (also more efficient)A new enclosure for the current subwoofers that is designed more for the goals at hand (cheapest approach)