Sennheiser HE 1 Instruction manual HE 1 - Page 53

Specifications, HE 1-HP - frequency response

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Specifications Specifications HE 1-HP headphones Transducer principle Acoustic operating principle Ear coupling Contact pressure Frequency characteristic Frequency response Max. sound pressure level THD Connection cable Connector Operating voltage Polarization voltage Max. input level Weight (without cable) Temperature range Relative air humidity (non-condensing) electrostatic, push-pull principle open circum-aural 4.3 N ± 0.3 N diffuse field equalized 8 - 80,000 Hz (-3 dB) 4 - 100,000 Hz (-10 dB) 114 dB SPL < 0.01 % (1 kHz, 100 dB SPL) silver-plated, oxygen-free copper cable (OFC), balanced, shielded, PTFE insulated, 3 m 9-pin HV connector 780 V DC 650 V 20 dBV approx. 550 g operation: +10 °C to +40 °C storage: -20 °C to +70 °C operation: 20 to 85 %, storage : 10 to 95 % 51

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Specifications
Specifications
HE 1-HP
headphones
Transducer principle
electrostatic, push-pull principle
Acoustic operating principle
open
Ear coupling
circum-aural
Contact pressure
4.3 N ± 0.3 N
Frequency characteristic
diffuse field equalized
Frequency response
8 – 80,000 Hz (-3 dB)
4 – 100,000 Hz (-10 dB)
Max. sound pressure level
114 dB SPL
THD
< 0.01 % (1 kHz, 100 dB SPL)
Connection cable
silver-plated, oxygen-free copper cable
(OFC), balanced, shielded, PTFE insulated,
3 m
Connector
9-pin HV connector
Operating voltage
780 V DC
Polarization voltage
650 V
Max. input level
20 dBV
Weight (without cable)
approx. 550 g
Temperature range
operation: +10 °C to +40 °C
storage: -20 °C to +70 °C
Relative air humidity
(non-condensing)
operation: 20 to 85 %,
storage : 10 to 95 %