Wich will be louder in spl 4 L7 15" or 2 solo x 18"?

Question

Wich will be louder in spl 4 L7 15" or 2 solo x 18"?

Answer 1

the 4 15's unless u put enough watts to the to 18's the two solo x's are great for spl u just got to have enough air space to let them be loud... if u have the air space they ask for on the subs get them they will  be louder but if u dont the four 15"s will be louder

Answer 2

the 4 15s as long as they r in the proper box and u r powering them properly