[. . . ] · Make sure there is sufficient air circulation at the mounting location for the amplifier to cool itself. Specifications · 60W RMS x 4 @ 4 ohms and 1% THD + N* · 80W RMS x 4 @ 2 ohms, 14. 4V supply and 1% THD + N* · 160W RMS x 2 @ 4 ohms, 14. 4V supply and 1% THD + N* · Total peak power: 640 watts · Frequency response: 10Hz ­ 100kHz (­3dB)* · Maximum input signal: 6V* · Maximum sensitivity: 200mV* · THD + N: 0. 05% · Signal-to-noise ratio: 85dBA (reference 1W into 4 ohms)* · Signal-to-noise ratio: 102dBA (reference rated power into 4 ohms) * CEA-2006A-compliant 0 Speaker Output Connectors · Connect the speakers to these terminals, observing proper polarity: · Four-channel operation: Connect the front left speaker to the Front L+ and L­ terminals, and the front right speaker to the Front R+ and R­ terminals. [. . . ] Set the Bass-Boost control according to your preference, being careful not to apply enough boost to damage the speaker(s). B Rear Crossover-Frequency Control · 12dB/octave crossover, variable from 32Hz to 320Hz. C Rear Crossover-Filter Selector · LP: Select for subwoofer(s). · FLAT: Select for full-range speakers when no subwoofer will be used in the system. · HP: Select for midrange speakers or full-range speakers when a subwoofer is used in the system. D Rear Input-Level Control · Used to match the rear input level of the amplifier to the output level of the source unit. E Rear Input Connectors (RCA) · Connect to rear RCA outputs from the source unit or signal processor. F Setting Input Level A Turn all Input-Level controls counterclockwise to 6V (minimum). B With a dynamic music track playing, turn head unit's volume control to the 3/4 position. C Turn Front Input-Level control clockwise until the music is so loud that it no longer sounds clear (distortion is present in the output). D Turn Front-Input-Level control counterclockwise gradually, just until the music sounds clear, once again. F Adjust Rear Input-Level control so that the level of the rear speakers is proportionate to the level of the front speakers, according to your preference. [. . . ] 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. [. . . ]