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INTRODUCTION THANK YOU for purchasing an Infinity® Reference Series amplifier. In order that we may better serve you should you require warranty service for your new amplifier, please retain your original purchase receipt and read the enclosed warranty information card. WARNING! Playing loud music in an automobile can hinder your ability to hear traffic and permanently damage your hearing. We recommend listening at low or moderate levels while driving your car.
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. Figure 3. Reference 1300a or 1600a amplifier with two woofer connections. 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.
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. To Head Unit Rear Output NOTE: s -INIMUM SPEAKER IMPEDANCE FOR STEREO operation is 2 ohms. Minimum speaker impedance for bridged operation is 4 ohms. s .OT 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.
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. 475a connected in bridge mode to a pair of full-range speakers. Note crossover and channel assignment settings.
APPLICATIONS – 5350a The 5350a can be configured for 5-channel or 3-channel operation, as shown in Figures 9 and 10. To Head Unit Front To Head Unit Rear INPUT MODE SWITCH: s 5SE ).4 INTERNAL MODE TO SEND A SIGNAL FROM the front and rear inputs to the subwoofer. s 5SE %84 EXTERNAL MODE WHEN SENDING A dedicated signal to the subwoofer inputs; e.g., if your source unit has a subwoofer output. Figure 9. 5350a connected to four satellite speakers and a single subwoofer.
INSTALLATION AND SETUP Refer to the illustrations on the previous pages for control location. Reconnect the (–) negative lead to the vehicle’s battery. Apply power to the audio system and play a dynamic music track. SETTING THE CROSSOVER(S) Determine your system plans and set the crossover-mode switch accordingly. If your system design does not include a subwoofer, set the crossover mode to FULL and skip to “Setting Input Sensitivity.
S PECIFICATIONS 5350a 475a 1% THD + N 1% THD + N 1% THD + N 1% THD + N owner’s manual, warranty card owner’s manual, warranty card 1300a 1600a 1% THD + N 1% THD + N 1% THD + N owner’s manual, warranty card 1% THD + N owner’s manual, warranty card Declaration of Conformity A valid serial number is required for warranty coverage. and appearance are subject to change without notice. Features, These products are designed for mobile applications and are not intended for connection to the mains.
We need to hear from you! ~Infinity. • Warranty Service • Confirmation of Ownership In the world of high fidelity, technology is all too often viewed as the end product. At Infinity; we have a different viewpoint: technology is only the means to an end. The end result must be enjoyment of the programs and music you hear. Thanks for choosing Infinity Register your purchase via the Internet at: http://www.infinitysys tems.
LIMITED ONE-YEAR WARRANTY Infinity Reference and Mobile Electronics (applies to USA only) A valid serial number is required for warranty coverage.
