@m_msThe CX800 is a sub developed by PK sound geared primarily towards electronic bass music. They are quite popular around here in the electronic music scene as having PK on your flyer generates a decent amount of hype for these types of shows. Now this is my own opinion based on experiences attending and throwing events on the BC West Coast but i have found they suffer from pretty bad port compression especially when pushed even reasonably hard. The bass essentially turns into a very boomy/chuffy/distorted one note kinda deal that's meant to be more felt than heard. When run properly arrayed and at a reasonable level they can sound pretty good for dubstep and drum&bass but i have found that the Skrams sound way tighter and punchier overall especially when it comes to house/techno/trance. Kick drums sound like actual kick drums where as on the cx800 the kick often loses its definition. At the end of the day i think the Skrams just do a better job overall at reproducing the original program material compared to the cx800 which impart more of their PK signature sound which sacrifices musicality for a more visceral feeling. There are many examples of ported double 18's out there that don't suffer from this type of problem, it just so happens that in our scene PK sound is used almost exclusively now a days so that's why people at the show noticed the difference in the Skrams.