QSC, Subwoofer, models:

ACOUSTICDESIGN AD-S28TW-BK	User Manual
AcousticDesign AD-C81TW	User Manual
AcousticDesign AD-S28Tw	User Manual
AcousticDesign QSC-AD-C81TW-WH	User Manual
GP212-sw	Specification Sheet
GP218-sw	Specification Sheet
I-215SB	User Manual
ISIS 215PCM	User Manual
ISIS 215SB	User Manual
KS Series	User Manual
KS118	Quick Start Manual
KS212C	User Manual
LS118	User Manual
ModularDesign Subwoofer MD-S215	Specification Sheet
SB-1180	User Manual
SB-2180	User Manual
SB-5218	User Manual
WideLine WL218-sw	Specification Sheet