User manual INFINITY 5350A

[. . . ] Sand away any paint from this location; use a star-type-lock washer to secure the connection. POWER CONNECTION Connect a wire (see chart at right for appropriate gauge) directly to the vehicle's positive battery terminal, and install an appropriate fuse holder within 18" of the battery terminal. Route the wire to the amplifier's location, and connect it to the amplifier's positive (+12V) terminal. Be sure to use appropriate grommets whenever routing wires through the firewall or other sheet metal. [. . . ] To Remote Connection of Head Unit 2 APPLICATIONS ­ 1300a AND 1600a The Reference subwoofer amplifiers are single-channel amplifiers. There are two sets of terminals to make it easy to connect multiple woofers. Either set of (+/­) terminals may be used when connecting woofers. To the right are four application diagrams to help plan your subwoofer system installation. NOTE: For simplicity, Figures 3 and 4 do not show power, remote and input connections. Reference 1300a or 1600a amplifier with two woofer connections. Subwoofers or voice coils connected in series. Subwoofers or voice coils connected in parallel. NOTE: Minimum impedance of each subwoofer = 4 ohms if subwoofers are connected in parallel and 1 ohm if they are connected in series. Figure 4. Reference 1300a or 1600a amplifier with one woofer connection. NOTE: Minimum impedance of subwoofer = 2 ohms reference series 3 APPLICATIONS ­ 475a The 475a can be set up for stereo 4-channel, 3-channel or bridged 2-channel operation, as shown in Figures 5 through 8. NOTE: · Minimum speaker impedance for stereo operation is 2 ohms. · Not all possible applications are shown here; e. g. , the applications shown in Figures 5, 6 or 8 could include a separate subwoofer driven by an additional amplifier. In that case, the user should refer to Figure 6 for crossover and sub amp connection suggestions. To Head Unit Rear Output Figure 5. Note crossover and channel assignment settings. To Head Unit Front Output Front Speakers Rear Speakers To Head Unit Rear Output Figure 6. 475a connected to four satellite speakers and used in conjunction with an additional subwoofer amplifier or powered subwoofer. Note crossover and channel assignment settings. To Sub Amp To Head Unit Front Output Front Speakers Rear Speakers 4 APPLICATIONS ­ 475a To Head Unit Sub Output Figure 7. 475a connected in tri-mode to a subwoofer and a pair of satellite speakers. Note crossover and channel assignment settings. To Head Unit Front Output Front Speakers Subwoofer To Head Unit Right Figure 8. Note crossover and channel assignment settings. To Head Unit Left Left Speaker Right Speaker reference series 5 APPLICATIONS ­ 5350a The 5350a can be configured for 5-channel or 3-channel operation, as shown in Figures 9 and 10. INPUT MODE SWITCH: · Use INT (internal mode) to send a signal from the front and rear inputs to the subwoofer. · Use EXT (external mode) when sending a dedicated signal to the subwoofer inputs; e. g. , if your source unit has a subwoofer output. Minimum impedance of any subwoofer or combination of subwoofers is 2 ohms. To Head Unit Front To Head Unit Rear Figure 9. Note crossover and channel assignment settings. NOTE: If head unit has only two preamp outputs, do not connect to rear, and place rear input source switch in the FRONT position. NOTE: If head unit includes a separate subwoofer output, connect it here and place switch in EXT position. Rear Speakers Subwoofer Front Speakers To Head Unit Front Output Figure 10. 5350a connected in bridge (3-channel) mode to a pair of satellite speakers and a subwoofer. Note crossover and channel assignment settings. NOTE: If head unit includes a separate subwoofer output, connect it here and place switch in EXT position. Left Speaker Right Speaker Subwoofer 6 INSTALLATION AND SETUP Refer to the illustrations on the previous pages for control location. [. . . ] Route the cable behind the dash or other interior panels and under the carpet. Connect the RJ11 cable between the RJ11 receptacle on the amp and the receptacle on the REMOTE LEVEL control (Figure 12). REMOTE LEVEL control electrical connection. TROUBLESHOOTING · PROBLEM: No audio (POWER LED is off). CAUSE and SOLUTION: No voltage at BATT+ and/or REM terminals, or bad or no ground connection. [. . . ]