Hey helomech,
Of course you are entitled to your opinion, but it would nice if it was based on facts or actual experience. The 40s are not just an MDF composed enclosure, put a complex multi-material layered design that leads to very low levels of cabinet added distortion equaling a very low noise floor. Secondly, the 40s series are based on new, designed and built for RF drivers, not off the shelf modified transducers from other companies. Of course, if you had read the review you would have seen factually that your statements are disingenuous.