Including an internal surround reflector, the HD 558 audiophile earphones have the ability to create an extended spatial sound field for a listening experience that immerses the wearer throughout music and movies. They are equipped with Sennheiser's innovative E.A.R. technology which ensures precise channeling of audio signals into your ears, as well as sophisticated Duofol diaphragms which lower unwanted resonances to an absolute minimum. The HD 558 featured plush, glamorous velour ear pads and headband cushion which offer outstanding using comfort, even for long listening sessions.
Internal Sound Reflector immerses the listener in rich audio
Eargonomic Acoustic Refinement (E.A.R.) technology simulates sitting in front of a hi-fi speaker set without the expense or space constrictions
Twist-n-lock single sided cable eliminates tangles and simplifies exchanges
Advanced Duofol diaphragm technology effectively eliminates standing waves within the capsule
Impedance: 50 ohms; Frequency response: 15-28,000 Hz; Total SPL: 112 dB