Ensure the power cord is not stretched, pinched or otherwise abused. Ensure the power cord is routed to avoid foot traffic. Your SP-18 amplifier should be cleaned only with a dry cloth. GETTING TO KNOW YOUR SP-18 ACTIVE 18” SUBWOOFER PANEL CONTROLS 1) Level Control: Sets the volume of the subwoofer 2) Phase Switch: Sets the polarity of the SP-18. 3) Power Indicator: The Power indicator lights when the SP-18 amplifier has been turned on and has power. 4) Protection: Red LED turns on when distorti

Revision 5008 July 2004 Aperion Audio Owner’s Manual Table Of Contents Thank You From Aperion Audio.......................................................................1 The Joy of Buying Direct ................................................................................1 DiAural® Crossover Technology.......................................................................1 What You’ll Need For Installation ....................................................................2 Choosing The Ri

Do not expose this appliance to rain or moisture. In case of malfunction consult qualified service personel. The lightning flash with arrowhead, within an equilateral triangle, is intended to The exclamation point, within an equilateral triangle, is intended to alert the user of the presence alert the user of the presence of uninsulated "dangerous voltage" within the of important operating and maintenance (servicing) instructions in the literature accompanying the product.s enclosure; that may b