Massive Audio GTR Series 8" Subwoofer these speakers are designed to

these speakers are designed to fit behind factory grilles or panels in most applications

X-over Filter Range

Amp Max Power (watts) 2500

or channels 3&4

Massive Audio GTR Series 8" Subwoofer these speakers are designed toAll GTR Series subwoofers use dual tight red stitching thats sewn through a Textured Non Pressed Pulp cone onto a Custom High Roll Foam surround. Then its bonded to a heavy gauge steel basket thats bolted to double stacked high flux Y30 120oz Strontium ferrite magnets. Then everything dances on a springy high quality spider with high grade woven tinsel leads that connect to a custom terminal case with flexible pure copper wire. These woofers scream