The Audeze LCD-XC Creator Package are a closed-back version of the LCD-X reference headphones exhibiting all the same qualities of the latter but offers more isolation from ambient noise. The Audeze LCD-XC Creator Package are made with Carbon cups to ensure better isolation from ambient noise. Using the same technology as all the Audeze's LCD collection of headphones, the LDC-XC offer a fast, dynamic and impressively accurate sound free from breakup modes and internal smearing. A much more focused and clear sound is obtained as a result. The LCD-XC is designed to be extremely efficient and works well with portable devices such as iPods and iPhones although a dedicated headphone amplifier will produce better results. The Fazor elements are used just outside the two magnet to break up and manage the flow of sound around the magnets ensuring a much more focused and clear sound with extended frequency response. In addition, the Fazor also ensure superior phase and impulse response adding further to the clarity and detail of these headphones.