Sennheiser HD 25 SP / -1 Instructions For Use Manual page 3

HD 25 SP / HD 25 SP-1
Closed, dynamic headphone for use as monitor headphone in
professional studios, for cutting and during outdoor recordings.
FEATURES
• Extremely lightweight headphone for long monitoring
• Good screening against ambient noise, thus high feedback rejection
in the studio
• High maximum sound pressure level
• Various connections possible due to a nominal impedance of 85
• Sturdy, pluggable cable, exchangeable
• Neodymium magnet systems with high efficiency, lightweight
AlCu coil wire for good transient response
• Spare parts available for a period of ten years after purchase
TECHNICAL DATA
Frequency response
Acoustic principle
Nominal impedance
Sound pressure level
Max. sound pressure level
Power handling capacity
THD
Coupling to the ears
Headband pressure
Weight without cable
Cable
Plug HD 25 SP:
HD 25 SP-1:
Subject to alterations
30-16,000 Hz
dynamic, closed
Ω
85
100 dB
120 dB
0.2 W as per DIN 45580
0.4 %
supraaural
ca. 3 N
115 g
3 m
6.3 mm ø stereo phone plug
3.5 / 6.3 mm ø stereo phone plug
Ω