The philips she2550 extra bass headphones really do provide extra bass because most of the earphone design features contribute to the bass performance from the neodymium magnets and 15mm speaker drivers to the twin vents and ergonomic ear cushionsthe special shape and materials used for the she2550 headphone ear cushions ensure a perfect fit for maximum comfort and also prevent audio leakage as well as enhance bass performance and the ear cushions are shaped in such a way that they perfectly