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MACROM Italiano 44.05/07 20 Ottobre 92 35
REGOLAZIONI E SELETTORI
a) MODO "ON/OFF Low-Pass": Selezionare la
posizione ON qualora si desideri attivare i filtri Passa-
Basso. Sulle uscite C-D o F saranno cosí presenti solo
le frequenze basse.
b) MODO "ON/OFF High-Pass": Selezionare la
posizione ON qualora si desideri attivare i filtri Passa-
Alto. Sulle uscite A-B o E saranno cosí presenti solo le
frequenze medio-alte.
a) "HIGH-PASS": Permette di regolare in continuo, da
50Hz a 160Hz, la frequenza del passa alto, cioé
determinare la partenza delle frequenze medio-alte.
b) "LOW-PASS": Permette di regolare in continuo, da
50Hz a 160Hz, la frequenza del passa basso, cioé
determinare la fine delle frequenze basse.
REGOLAZIONE DELLE FREQUENZE LOW & HIGH-PASS
REGOLAZIONE DEI GUADAGNI DI INGRESSO
La posizione centrale (click) serve per selezionare la
sensibilità di ingresso a 500mV, la quale corrisponde alla
uscita di preamplificazione dei prodotti MACROM.
Volendo collegare l'amplificatore con una unità principale
di un marchio che non è MACROM ma che possiede
uscite preamplificate del tipo RCA, procedere come se-
gue:
a) Collocare il volume della vostra unità principale a 3/4
dell'uscita massima.
b) Regolare quindi, con un cacciavite, il controllo di
guadagno di ingresso da 2V a 0.1V per ottenere una
massima pressione sonora ma senza alcuna
distorsione.
NOTA: Indipendentemente dal numero degli ingressi en-
trambe le regolazioni sono sempre attivate, tranne che nel
caso "c" descritto a pag. 37.
GAIN
CONTR
O
0.5V
0.1
V
2 V
GAIN
CONTR
O
0.5V
0.1
V
2 V
0.5V
0.1
V
2 V
GAIN
CONTRO
L
0.5V
0.1
V
2 V
GAIN
CONTRO
L
SELETTORE DEL MODO ON/OFF LOW & HIGH-PASS
4CH 3CH 2CH
LOW PASS
HIGH PASS
ONOFF
ONOFF
OUTPUT
INPUT
2CH4CH
CROSSOVER CUTTING POINT
LOW PASS HIGH PASS
105Hz
160Hz50Hz
105Hz
160Hz
50Hz
CROSSOVER CUTTING POINT
LOW PASS HIGH PASS
105Hz
160Hz50Hz
105Hz
160Hz
50Hz
35
33


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