dB MA-1500.1D Manuale d'uso - Pagina 4
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Stampa la pagina4 . C O N N E C T I O N M E T H O D S
The minimum permissible load impedance at the output of the amplifier is 1 ohm. Use these formulas to calculate the
load impedance of various types of connections.
S e r i a l c o n n e c t i o n
To t a l i m p e d a n c e = Ω S u b 1 + Ω S u b 2 + Ω S u b 3 . . .
P a r a l l e l c o n n e c t i o n
To t a l i m p e d a n c e =
S C H E M E S O F E N A B L I N G T H E L O A D O F T H E S U B W O O F E R
In any case do not expose the amplifier to the loads lower than specified by the manufacturer. Use these schematics to
calculate load impedance of different connection types.
Vo i c e c o i l s 1 + 1 , 2 + 2 , 4 + 4 O h m
The subwoofer has voice coil D1, D2 or D4.
O n e s u b w o o f e r, c o i l s i n s e r i e s
O n e s u b w o o f e r, c o i l s i n p a r a l l e l
S u b w o o f e r s i n s e r i e s , c o i l s i n p a r a l l e l
1
1
1
Ω S u b 1 + Ω S u b 2 + Ω S u b 3 . . .
. . .
1
. . .
Voice coils
1+1 Ohm
2+2 Ohm
4+4 Ohm
Voice coils
1+1 Ohm
2+2 Ohm
4+4 Ohm
Voice coils
1+1 Ohm
2+2 Ohm
4+4 Ohm
4
EN
Total impedance
2 Ohm
4 Ohm
8 Ohm
Total impedance
0,5 Ohm
1 Ohm
2 Ohm
Total impedance
1 Ohm
2 Ohm
4 Ohm