The C-82ST70 provides some high output subterranean subwoofers, but they could only be buried in 10 inches of soil. This required the enclosure height being reduced to 8 inches - too small for the depth of a 10 or 12-inch woofer.
8-inch drivers which equal about an 11-inch woofer
The Premier team has been stellar and attentive to every single need we have had and were on site during the entire construction of our home to insure first class install and service.