Chevy Avalanche or Cadillac Escalade EXT 2007-2013 Dual 12" Subwoofer Underseat Sub Box Speaker Enclosure The Seismic Audio SA‑4CR17 is

The Seismic Audio SA‑4CR17 is built for installers and audio enthusiasts who demand clean signal transfer

hard‑hitting output that destroys anything in its class

and more — all hands‑free

The suspension is intentionally stiff out of the box

7 L Voice Coil Diameter:4" CMS:30 um/N MMS:635 g BL^2/RE:246

Chevy Avalanche or Cadillac Escalade EXT 2007-2013 Dual 12" Subwoofer Underseat Sub Box Speaker Enclosure The Seismic Audio SA‑4CR17 isDimensions: Width 48" x Height 6" x Depth 16 3 4" Install Location: Under Rear Seat Install Notes: Rear seat must be able to fold forward for box to fit Mounting Depth: 4 1 2 Inches Air Space: 0. 48 Cubic Feet Adding bass to a truck can be a very complicated problem to tackle, especially when building a box! We offer pre built enclosures that are ready to be dropped into your 2002 2013 Chevy Avalanche that offers unbeatable performance and sound