Sennheiser HD25SP Features:

• Sturdy, modular design for durability
• Lightweight and comfortable
• High maximum sound pressure level
• Neodymium ferrous magnet systems and lightweight aluminum/copper voice coils for high transient response

Sennheiser HD25SP Headphones Specifications:

• Transducer Principle Dynamic, closed back
• Frequency Response 30-16,000 Hz
• Nominal Impedance 85 ohm
• Attenuation 16 dB (passive)
• Weight Wo Cable approx. 5 oz.
• Ear Coupling Supraural
• Headband Pressure 3 N
• Sensitivity 100 dB
• Distortion < 0.5%

Connectors

• Connector 1/8" stereo jack w/ 1/4" adapter