The FiiO EX1 in ear monitors (IEMs) utilise a top of the line dynamic transducer with nano class titanium diaphragm. Different from the typical dynamic transducer, it is capable of perfect transient response while retaining a natural yet energetic sound - with clear and delicate layering, thick and powerful bass response as well as amazing treble clarity. These outstanding attributes combine to recreate the impressive 'live' feeling of the music recording. The diaphragm is the heart of sound production for FiiO EX1 in-ear monitor, determining the sound quality to a great extent. Utilizing titanium, a material that is light weight with high sound conduction speed, yet several times stiffer than steel, we have been able to design a full range dynamic driver around this material, pushing breakup frequency above the audible range, thus ensuring clear and smooth high frequency production. So buy this Fiio EX1 Dynamic IEM Earphones with Aerospace Nanotech Titanium Diaphragm Now £49.99.