An old rule of thumb;
(2) 8in subs are equivalent to (1) 12in sub.
(2) 10in subs are equivalent to (1) 15 in sub.
With either double 8 or 10 inch subs, the bass is much more refined vs. a single, larger driver IMO.
Additionally, the larger , single driver requires more air pressure to be moved, for better sound.
Happy Listening!
(2) 8in subs are equivalent to (1) 12in sub.
(2) 10in subs are equivalent to (1) 15 in sub.
With either double 8 or 10 inch subs, the bass is much more refined vs. a single, larger driver IMO.
Additionally, the larger , single driver requires more air pressure to be moved, for better sound.
Happy Listening!