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37
dB
(1 Pa/V)
Hz
36
dB
(V/Pa)
Hz
-100
-95
-90
-85
-80
-75
-70
-65
-62.5
-60
-55
-50
90
200
500
1k
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5k
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Courbes de réponse et diagramme polaire
Réponse en champ diffus Casque
Diagramme polaire Microphone
Caractéristiques
HMD 280 PRO / HMD 281 PROȊ HMD 280-13 / HMD 281-13
Partie casque
Classification
(selon IEC 268-7) 268-7-IEC-DCSC-64R0-2/-1 Ȋ 268-7-IEC-DCSC-03R2-2/-1
Principe de fonctionnement dynamique Ȋ dynamique
Impédance 64 (selon IEC 268-7) Ȋ 300 (selon IEC 268-7)
Puissance maxi. à long terme
de l’entrée 0,5 W (selon IEC 268-7) Ȋ 0,5 W (selon IEC 268-7)
Couplage oreilles circumaural Ȋ circumaural
Réponse en fréquence
(–10 dB à 1 kHz) 8 Hz—25 kHz Ȋ 8 Hz—25 kHz
Niveau de pression sonore 102 dB (selon IEC 268-7) Ȋ 102 dB (selon IEC 268-7)
113 dB / 1 V
rms
Ȋ 107 dB / 1 V
rms
Atténuation maxi. 32 dB Ȋ maxi. 32 dB
Distorsion harmonique < 0,1 % (à 1 kHz, 100 dB SPL) Ȋ < 0,1 % (à 1 kHz, 100 dB SPL)
Poids approx. 310 g / 245 g Ȋ approx. 310 g / 245 g
Pression de contact approx. 4 N Ȋ approx. 4 N
Longueur du câble spiralé mini. 1 m Ȋ mini. 1 m
maxi. 3 m Ȋ maxi. 3 m
Partie microphone
Principe de fonctionnement dynamique Ȋ dynamique
Type de microphone microphone à gradient de pression Ȋ microphone à gradient de pression
Directivité super-cardioïde Ȋ super-cardioïde
(voir diagramme polaire) Ȋ (voir diagramme polaire)
Impédance nominale 200 Ȋ 200
Sensibilité en champ proche –63 dBV/Pa (à 1 kHz) Ȋ –63 dBV/Pa (à 1 kHz)
0,7 mV/Pa (à 1 kHz) Ȋ 0,7 mV/Pa (à 1 kHz)
Réponse en fréquence
en champ proche 50—13500 Hz Ȋ 50—13500 Hz
Courbe de réponse Microphone
mesurée en champ proche avec la bouche artificielle
B&K 4219
19


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