User manual JBL UREI 815

[. . . ] · At the installation sites, locate and make a note of all fuel lines, hydraulic brake lines, vacuum lines and electrical wiring. Use extreme caution when cutting or drilling in and around these areas. · If the amplifier's fuse must be replaced, use only the same type and rating as that of the original. [. . . ] · Make sure there is sufficient air circulation at the mounting location for the amplifier to cool itself. · Make sure that the amplifier is mounted securely using nuts and bolts or the supplied mounting screws. · Mount the amplifier so that it remains dry ­ never mount an amplifier outside the vehicle. (4) #8 x 2-1/2" Philips panhead screws for mounting the amplifier (2) 20A ATC-type fuses (1) Owner's Manual Specifications · 55W RMS x 4 channels @ 4 ohms and 1% THD + N* · 70W RMS x 4 channels @ 2 ohms and 1% THD + N* · THD+N: 0. 02% (rated power @ 4 ohms) · Signal-to-noise ratio: 90dBA (reference 1W into 4 ohms)* · Signal-to-noise ratio: 105dBA (reference rated power into 4 ohms) · Frequency response: 10Hz ­ 100kHz (­3dB) · Max Power: 280 Watts * 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. · Three-channel operation: Connect the stereo speakers to the Front terminals as above. Connect the single speaker into which the amplifier's rear channels will be bridged to the Rear R+ and Rear L­ terminals. · Two-channel (bridged) operation: Connect one speaker to the Front R+ and Front L­ terminals. 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. G Setting the Crossover A Crossover setting for 5" or larger full-range speakers when no subwoofer is included in the system. B Crossover setting for midrange and/or full-range speakers when a subwoofer is included in the system. [. . . ] B Crossover setting for midrange and/or full-range speakers when a subwoofer is included in the system. Note: Acceptable frequency ranges indicated in gray. Note: Remove any paint below ring connector. Star Washer · REM: Connect to the "Remote Out" lead from source unit or to a source of switched 12V+ (ACC). 3 Aux Output Connectors (RCA) · Summed, nonfiltered pass-through output. [. . . ]