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Type-1B : Tandis que la configuration de
montage est la même que pour le Type-1A,
ce type de circuit fournit une variation pour
les cas où les goûts personnels, la position
ou lacoustique du véhicule nécessitent une
plus grande sortie haute fréquence depuis
le haut-parleur médial et le tweeter. Linstal-
lation sur la plage arrière est un exemple
particulier où le positionnement très en de-
hors de laxe nécessitera ce type de com-
pensation de niveau à cause de la pente
naturelle. Bien que cela entraîne également
un retard supplémentaire du woofer, cela na
pas dinfluence significative dans ce cas. Les
points de croisement acoustiques en résul-
tant sont les mêmes que plus haut.
10
0
10
20
30
40
50
20Hz 30Hz
100Hz
1.0KHz 3.0KHz 10KHz 30KHz300Hz
Réglage du cavalier du circuit
HP-2
HP-1
LP-2
LP-1
+2dB
MID HP/LP
3dB
1.5dB
0dB/0
°
+1.5dB/15
°
+4dB/30
°
HP-1
HP-2
HP-3
BYPASS
BYPASS
LP-1
LP-2
LP-3
LP-BYPASS
HP-BYPASS
TW LEVEL
WF LP
MID HP/LP
WF/MID
SIGNAL LINK
SPXZ18T
TW HP
MID/TW
SIGNAL LINK
+
+
Remarques :
Les cavaliers de niveau du tweeter surlignés sont les réglages recommandés pour cha-
que configuration, mais il est possible de désirer un réglage utilisateur.
Les simulations de fonction de transfert illustrent uniquement leffet du filtre sur le signal
dentrée et ne représentent donc pas la véritable réponse de fréquence du système.
Si lon utilise des canaux damplification séparés (mode deux ou trois fils), les cavaliers de
liaison de signal appropriés doivent être retirés.
33


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