I have the CSL bought 650 headphones, because I have a model with good price-performance ratio due to high wear Search, on which can be accessed safely, if you urgently needed replacement again. The numerous positive reviews, praising the volume above all have, let me access then. From the external processing the headphones make a completely clean processed and quality impression (aluminum instead of plastic!). When trying out then unfortunately the disillusionment: Even my old interim solution - 5 - Hama plugs from the Media Markt - provides a richer and basslastigeren sound, and are compared to the previously favored by my Creative earphones pretty quiet. Here, however, drowned out all relatively quiet and tinny (even with basslastigeren EQ settings), which is a real shame and disappointing.
Conclusion: 4 stars for design & processing, 2 stars for - even in this price range rather meager - Sound = 3 stars