Sennheiser HD 540 Reference

Data

Sennheiser Dynamic Stereo Headphones HD 540 reference

General:

• Manufacturer: Sennheiser
• Model: HD 540 reference
• Years of manufacture approx.: 1986
• Made in: Germany
• Colour: grey
• Size: 21,5 x 18,0 x 10,5 cm
• Weight without cable approx.: 250 g
• Original price 1986 approx.: 198, - DM, (160, - DM, DDR-Intershop)

Connections:

• 6.3 mm stereo jack and cube 5- plug with 3 m cable

Technical data:

• Transducer principle: dynamic, open
• Frequency response: 15- 25.000 Hz
• Frequency response: loudness diffusion field equalized
• Nominal impedance: 300 Ohm
• Characteristic sound pressure level at 1khz: 94 dB
• Rated power handling (max. continuous power handling: 0.2 Watt (according to DIN 45582)
• Distortion factor (according to DIN 45500): <0,4 %
• Type of coupling to the ear: circumaural
• Contact pressure: 3 N

Remarks

• very good wearing comfort,
• ear cups are well padded
• even today, very good sound
• Disadvantage: Pads do not last forever, artificial leather dissolves with time.
• Alternative pads with velvet fabric available

Pictures