COMPLETE SOUND SYSTEM Pack. For bands that regularly play in venues, small music clubs, and bars and want to personally guarantee first-class sound. The compact Linear 3 Series sound system can be set up and adjusted in just a few steps. Preset switches on the back of the speakers make fine-tuning the system quick and easy thanks to its integrated DSP. System consisting of: 2 x L3 112 FA, 2 x L Sub 1500 A, 2 x K&M aluminum poles with M20 thread, 2 x L3 112 FA sleeves, and 2 x L Sub 1500 A sleeves.