[. . . ] Use extreme caution when cutting or drilling in and around these areas. · Make sure there is sufficient air circulation at the mounting location for the amplifier to cool itself. [. . . ] · Make sure there is sufficient air circulation at the mounting location for the amplifier to cool itself. Specifications · 175W RMS x 1 @ 4 ohms and 1% THD + N* · 225W RMS x 1 @ 2 ohms, 14. 4V supply and 1% THD + N* · 300W RMS x 1 @ 1 ohm, 14. 4V supply and 1% THD + N* · Total peak power: 600 watts · Frequency response: 10Hz ­ 300Hz (­3dB)* · Maximum input signal: 6V* · Maximum sensitivity: 200mV* · THD + N: 0. 05% · Signal-to-noise ratio: 95dBA (reference 1W into 4 ohms)* · Signal-to-noise ratio: 120dBA (reference rated power into 4 ohms) * CEA-2006A-compliant 0 Speaker Output Connectors · Connect the subwoofer to these terminals, observing proper polarity. 2 Power Input Connectors · +12V: Connect to the positive terminal of the vehicle's battery. Install an appropriate fuse holder and fuse (40A minimum) within 18 inches of the battery. Install protective grommets when routing wires through the firewall or other sheet metal. 3 Aux Output Connectors (RCA) · Nonfiltered pass-through output. Connect to the input of an additional amplifier. This product is designed for mobile applications and is not intended for connection to the mains. Features, specifications and appearance are subject to change without notice. Declaration of Conformity Harman Consumer Group, Inc. 250 Crossways Park Drive, Woodbury, NY 11797 www. jbl. com © 2008 Harman International Industries, Incorporated. JBL is a trademark of Harman International Industries, Incorporated, registered in the United States and/or other countries. [. . . ] Features, specifications and appearance are subject to change without notice. Declaration of Conformity Harman Consumer Group, Inc. 250 Crossways Park Drive, Woodbury, NY 11797 www. jbl. com © 2008 Harman International Industries, Incorporated. [. . . ]