The advantage you have by coming to the SSA forums is; ~ massive amount of experience in practical and impractical applications ~ talking directly to industry or industry related professionals that actually have more experience then pointing to a picture in a Chinese catalog ~ scholastic and professional usage and understanding on a very precise level ~ almost distorted level of actual topical and applicable knowledge over other forums I could go on, but I would embarrass other sites more then I already am. Essentially when you have someone like Sean (///M5 an engineer with a background in acoustics and physics BTW), Mike (95Honda who has built just about everything you can imagine and then some over 2 decades), Brad (Impious who has has a far more elevated understanding of the science and design that goes into a speaker then just about anyone), shizzon (very well traveled SPL competitor/enclosure designer), Ricksi (talented enclosure designer and builder), bassaholic (Drew, a young but accomplished SPL competitor), etc, etc. etc. could keep going, ALL in the same topic trying to help out, I think it might be worth a moment to listen. Don't mind me, I just co-own a sub woofer brand.