another comparison

[sandsnip3r 0]

2 15" MB Quarts Ported 1200Watts

vs

1 15" FI BTL Ported 2600Watts

in terms of SPL

[Aaron Clinton 2,372]

This is very dependent on the install. As I am not familiar with the post Maxxsonics buyout of MB Quart, I know their older models were never really intended for high output.

[dbjunior 0]

if you can fit two 15's ported why not do a btl 18 ported

[akjay907 0]

Let me guess, a Hifonics BXi-2606 is pushing them?