sennheiser hd448 closed circumaural hi-fi headphone
technical details frequency response 16-24 000 hz transducer principle dynamic closed thd lt 0.1 1 khz 100db max . spl 114 db 1 khz 1v ear cupling around-the-ear cable length 4.6 ft ofc with 5.2 ft ofc extension nominal impedance 24 weight without cable 380g connector 3.5 mm gold straight plug 6.3 mm gold adaptor plug general description the hd 448 allows you to get closer to your music and movies without distractions . using specially tuned acoustic transducers the hd 448 reproduces clean intimate sound waves directly into your ears for a lifelike sound that helps you rediscover your music all over again . the leatherette earpads block out ambient noise allowing you to listen at safer levels with a much greater attention to the enhanced detail this headphone provides . the included cable extension adds length on-demand for listening on-the-move or at home . features closed around-the-ear design blocks outside noise good attenuation of ambient noise lifelike stereo sound experience ergonimic design provides comfortable fit includes a storage pouch and extension cable for added length and protection rich crisp bass response and faithful dynamic audio reproduction advanced acoustic system with powerful neodymium magnets and lightweight diaphragms powerful bass and increased signal levels for modern rhythm-driven music gold plated plugs and 6.3 mm stereo adaptor allows for excellent connectivity 2-year warranty ie6 dynamic in-ear headphones mx 471 in-ear stereo headphones hd 218 closed back headphones iphone ipod mp3 compatible hd 201 hd 202 rs 120 hd 428 hd 438 frequency 21-18 000 hz 18-21 000 hz 22-19 500 hz 18-22 000 hz 17-22 500 hz thd lt 0.7 lt 0.5 lt 0.7 lt 0.1 1 khz 100db lt 0.1 1 khz 100db transducer priciple dynamic dynamic closed dynamic open dynamic closed dynamic closed weight 165g 130g 230g 390g 394g wireless no no yes no no sound pressure level 108 db 1 khz 1 v 115 db 1 khz 1 v 106 db 110 db 112 db 1 khz 1 v warranty 2 yrs 2 yrs 2 yrs 2 yrs 2 yrs