The Shuttle Series STL-2-12T 1x12" Bass Speaker Cabinet is Genz Benz's extension cabinet for either of the SHUTTLE 6.2 combos or can be used as a stand-alone cabinet for any of their bass heads. It features Genz Benz's new high powered, high efficiency, proprietary cast frame Neodymium GNX-12350 loudspeaker. This speaker delivers increased output and thickness of the note as well as cutting through the mix with authority and clarity