Massive Audio GTR Series 8" Subwoofer With the added flexibility of

With the added flexibility of an auxiliary input

Bass: 0dB to +18dB @ 45Hz

X-over Filter Range

2 Grille frames

Massive Audio GTR Series 8" Subwoofer With the added flexibility ofAll 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