Infinity REF-4555a Owner'S Manual Download Page 1 | Manualshive

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OWNER’S MANUAL

INFINITY REFERENCE

REF-704a/REF-4555a/REF-551a AMPLIFIER

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Summary of Contents for REF-4555a

Page 1: ...EN OWNER S MANUAL INFINITY REFERENCE REF 704a REF 4555a REF 551a AMPLIFIER ...

Page 2: ...important documents in order to expedite warranty service if needed ABOUTTHE MANUAL This manual describes general installation guidelines and operation instructions However please note that proper installation of mobile audio and video components requires qualified experience with mechanical and electrical procedures If you do not have the knowledge and tools to successfully perform this installat...

Page 3: ...ator 03 3 Speaker output connectors 03 4 Fuses 06 5 Power input connectors 06 6 Front and rear inputs and outputs RCA 07 7 Input level 08 8 Crossover filter selectors 08 9 Gain 08 10 Crossover frequency controls 09 11 HALOsonic input 09 12 ADAS Assign REF 704a and REF 4555a 09 13 ADAS Input REF 704a and REF 4555a 09 CHAPTER 3 OPERATIONS 10 CHAPTER 4 TROUBLESHOOTING 11 CHAPTER 5 SPECIFICATIONS 12 ...

Page 4: ...1 CHAPTER 1 PICTORIAL INDEX OF INPUT CONNECTIONS REF Amplifier front panel REF Amplifier back panel REF Amplifier top panel 1 2 POWE R PROTEC T 6 8 10 12 13 11 9 7 3 4 5 ...

Page 5: ...re secure and properly insulated If you must replace any of the amplifier s fuses use the same type of fuse and current rating as the original To keep the amplifier cool choose a location that provides enough air circulation such as under a seat or in the trunk Do not mount the amplifier with the heat sink facing downward as this interferes with cooling Mount the amplifier so that it will not be d...

Page 6: ...ls observing proper polarity connect each speaker s positive lead to the appropriate positive terminal and negative lead to the appropriate negative terminal The REF 704a features Front L L R and R terminals and Rear L L R and R terminals 4 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 Connect the rear lef...

Page 7: ...the Rear L terminal and the lead to the Rear R terminal 2 channel bridged operation Connect one speaker s lead to the Front L terminal and the lead to the Front R terminal Connect the other speaker s lead to the Rear L terminal and the lead to the Rear R terminal Left front speaker Right front speaker 4 ohm subwoofer 4 ohm subwoofer 4 ohm subwoofer ...

Page 8: ... and R terminals Rear L L R and R terminals and Sub and terminals 5 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 Connect the rear left speaker to the Rear L and L terminals and the rear right speaker to the Rear R and R terminals Connect the subwoofer s positive lead to the terminal and the negative lead ...

Page 9: ...egative terminals To power two subwoofers in parallel connect one sub s positive and negative leads to the positive and negative terminals on the left and the other sub s positive and negative leads to the positive and negative terminals on the right To power two subwoofers in series connect one sub s positive lead to the positive terminal on the left and the other sub s negative lead to the negat...

Page 10: ...o the system s largest speakers the ones designed to make the most bass Use a small phillips screwdriver to losen the adapter s set screws and insert the speaker wires into the holes on the back of the adapter Tighten the set screws to secure the wires Ring Connector Ground Wire Star Washer Factory Bolt Note Remove any paint below ring connector Factory Bolt Ring Connector Ground Wire Note Remove ...

Page 11: ...o seeing a speaker connected to its input Important The HI2 setting should never be used when the REF amplifier is connected to an aftermarket head unit s line level RCA type outputs 8 Crossover filter selectors X OVER Crossover filter selectors REF 704a and REF 4555a only REF 551a filter is low pass only LP Low pass Choose this setting if you re connecting a subwoofer s or want to provide a low p...

Page 12: ... select the speaker over which you ll hear ADAS messages Turn the dial to FL for the front left speaker FR for the front right RL for the rear left and RR for the rear right 13 ADAS INPUT REF 704a and REF 4555a only Lets you plug aT568B cable sold separately from an optionalAdvanced DriverAssistance System into the amp s RJ45 input jack Also functions as a priority switching input When the system ...

Page 13: ...Low pass Choose this setting if you are connecting a subwoofer s or want to provide a low pass filter for separate mid bass speakers FULL Full range Choose this setting if you are connecting full range speakers and are not using a subwoofer in your system HP High pass Choose this setting to prevent low bass from reaching midrange or full range speakers when you are using a subwoofer in your system...

Page 14: ...and SOLUTION DC voltage on amplifier output Amplifier may need service see enclosed warranty card for service information PROBLEM No audio and PROTECT INDICATOR is on CAUSE and SOLUTION Amplifier is overheated Make sure amplifier cooling is not blocked at mounting location Verify that speaker system impedance is within specified limits Or there may be voltage greater than 16V or less than 8 5V on ...

Page 15: ...ne of the main causes for extraneous noise in your audio system CHAPTER 5 SPECIFICATIONS Model RMS power 4 ohms RMS power 2 ohms RMS bridged power 4 ohms Total peak power Frequency response Maximum signal input Maximum sensitivity REF 704a 70W x 4 100W x 4 200W x 2 1000W 10Hz 40kHz 20V 200mV REF 4555a 45W x 4 65W x 4 130W x 2 1800W 10Hz 40kHz full range 20V 200mV 320W x 1 500W x 1 10Hz 320Hz sub R...

Page 16: ...ark and logos are registered trademarks owned by Bluetooth SIG Inc and any use of such marks by HARMAN International Industries Incorporated is under license Other trademarks and trade names are those of their respective owners Features specifications and appearance are subject to change without notice TR02575_A HARMAN International Industries Inc 8500 Balboa Boulevard Northridge CA 91329 USA www ...

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