Sennheiser HD 525 Instructions for Use - Page 3

HD 525 FEATURES • High quality entertainment hi-fi stereo headphone • Functional, advanced design which takes account of ergonomics • Neodynium magnets for powerful dynamics and high sensitivity • Extremely light Cu power coils for high transient fidelity • Duofol membrane to reduce partial oscillations • Fresh graphic equalization - powerful bass and finely tuned treble • Very sturdy, plug-in connection cable of kevlar fibre-reinforced, OFC copper • Gold-plated connector plug, ensuring a connection with lasting reliability for all playback euipment • Optimal wearer comfort - adjusts to allow a perfect fit TECHNICAL DATA Frequency response Acoustic principle Frequency curve Nominal impedance Sound pressure Power handling capacity THD Sound coupling to the ear Headband caliper pressure Weight without cable Plug Connection cable 20 Hz - 23,000 Hz dynamic, open diffuse-field luodness equalization 150 Ω 94 dB at 1 kHz 0.2 W (DIN 45 582) < 0.25 % (DIN 45 500) around the ears (circumaural) approx. 3 N approx. 255 g 3.5/6.3 mm ø, stereo jack 3 m detachable copper cable (OFC) For reasons of hygiene, ear pads should be replaced from time to time. Ear cushions (1 pair), Order No. 60300. Subject to alterations