308 is MODEL
where D means Dual
D2 means
DUAL2
D4 Means
Dual4
dual 2 or dual 4 what ???
its dual 2 ohms coil , or dual 4 ohms coil
MTX bahi
,d4 shayad normal/reverse dono bass marta hai
no concept like that
OHMS configuraton ka farq hai
D2 is standard cause of 4 ohms in seires ,
where 1 ohm in wiring parallel connection
D4 is 8 ohms in seires and 2 ohms in parallel
D2 (1 , 4 ohms)
D4 (2 , 8 ohms)
before you purchase any sub ,
you must know about your`s amplfier stablitity
Like , 2 ohms stable , or 1 ohms stable
every amplifier is stable at 4 ohms and even on 8 ohms easily
CONFIGURATION of OHMS is very important for amplfieir
now matter you put
1sub ~ 10 SUBS or more
abay yaar MAGGI still peoples need to know difference