Infinity 54a User's Manual
Contents
1. Front Hi Pass a eae 1 Twt D 4 Mid Systems 12 Subwoofer He PRECAUTIONS AND NOTES The Kappa 54a has five levels of circuit protection that monitor the amplifier and will shut it down if the electrical system voltage drops below 10 Vdc or exceeds 15 5 Vdc temperatures are above 194 F 90 C short circuits occur or current draw exceeds product specifications For best performance check the intended mounting site to make sure the operating environment does not create conditions that will trigger circuit protection Prior toinstallation turn off all audio systems and other electrical devices Also disconnect the negative lead from the vehicle s battery At the installation site locate and make a note of all fuel lines hydraulic brake lines and electrical wiring Use extreme caution when cutting or drilling in and around these areas Use the amplifier as a mounting template to mark locations for the mounting holes Check clearances on both sides of a planned mounting surface before drilling any holes or installing any screws Remember that mounting screws can extend up to an inch behind the surface Ground Always wear protective eyewear when using tools The Kappa 54a uses gold plated industrial grade Weco plug in connectors for power and speaker wiring Because of precision tolerances do not insert the connectors into the amplifier without prewiring them fir2. one day to complete the installation PARTS LIST Examine and verify that the package indudes the following items 1 1 1 1 1 4 Kappa 54a Power Amplifier Spare ATC fast blow fuse 40 A Control cover with 2 machine screws ea x 1 Weco 5 pin audio connector Weco 2 pin power connector ll aS He ee P l 8 mounting screws MOUNTING THE AMPLIFIER The Kappa 54a can be mounted in virtually any location inside the vehicle However make sure to keep the amplifier away from heater vents or ducts 1 At the chosen site use the amplifier as a mounting template and mark locations of the four mounting holes 2 Drill a small pilot hole at each marked location 3 Mount the amplifier and securely tighten the mounting screws WIRING THE AMPLIFIER Refer to Figure 7 below for details of the K appa 54a s front and rear pane connections 1 For power remote and speaker wires strip 1 4 off one end of each jacket to reveal bare wire for insertion into the Weco connectors 2 Using the Weco 2 pin power connector connect a black wire from the nearest bare metal chassis component to the terminal Then connect a red wire from the vehicles 12 volt battery terminal to the terminal Kappa 54a MADE IN THE USA CE KAPPA 54a WIRING CONNECTIONS front panel REM R L Seu gud FRONT REAR BRIDGE aa Pesi R L KAPPA 54a WIRING CONNECTIONS re
3. ION KAPPA 54a L R Inputs Figure4 In this example system a Kappa 54a drives front and rear pairs of 5 1 4 speakers The 54a s stereo front and rear outputs are summed to feed a bri dged mono Kappa 202a that drives a single 12 subwoofer L R Outputs F R Sum F IPA eHP Mi FLAT PM T LP A Die uu e FLAT X 5 1 4 Speakers Rear Hi Pass KAPPA 54a L R Inputs Figure5 In this expanded system a Kappa 54a drivesa front pair of component systems and a rear pair of 5 1 4 speakers The 54a s front low pass outputs feed a Kappa 102a to drivea stereo pair of 6 mid bass speakers The 102a s low pass outputs feed a bridged mono Kappa 202a to drivea single 12 subwoofer NOTE Many different systems are possible using the crossover settings on Kappa amplifiers induding ones with 24 dB per octave slopes achieved through cascaded configurations F or more information consult your Infinity Car Audio dealer L R Outputs Low Pass 4 Infinity Kappa 54a Power Amplifier 5 1 4 Speakers Hi Pass F amp R _H Z
4. Make sure the vehicles electrical system is working properly and power is reaching the Kappa 54a i e green LEDs on the top panel are on SYMPTOM LIKELY CAUSE No audio Low No Remote Turn On Voltage SOLUTION Check connections test turn on voltage Speakers are not Check wiring use connected or are VOM DVM to blown measure speaker coil impedance Distorted audio Input sensitivity See Seting Input is not set properly Sensitivity on previous page Audio lacks Speakers are wired Check polarity of punch with wrong polarity connections refer to Applications page 3 SPECIFICATIONS KAPPA 544 Power Output 4 ohms 4x 50 watts vedi n ne Power Output Bridged 4 ohms 2x 150 watts Frequency Response 20 Hz 20 kHz iu ii ia e i n e a Signal to Noi se gt 95 dB Maximum Current Draw 40A Dimensions wx hx I 16 x 23 16 x 812 in 406 4 x 55 6 x 215 9 mm SYMPTOM Audio cycles off and on Amber protec tion LEDs on top panel are on Audio cycles off and on Amber protection LEDs on top panel are on Fuse blows Jo Infinity 1997 Infinity Systems Inc 20630 Nordhoff Street Chatsworth CA 91311 USA LIKELY CAUSE A protection circuit is turning the amplifier off and on GAIN is set too high Incorrect wiring or short circuit VOICE 818 407 0228 e FAX 818 709 9486 www infinitysystems com SOLUTION Verify the following electrical system is between 10 15 5 Vdc tempe
5. W Infinity CAR AUDIO Kappa 54a 4 Ch Power Amplifier O wner s M anual Installation Guide KAPPA 54A POWER AMPLIFIER The Kappa 54a is a member of Infinity s new Kappa series of mobile power amplifiers Housed within the sleek extruded aluminum frame you ll find the latest advances in circuit topology along with user conveniences like a wide range input sensitivity control auxiliary outputs and a built in electronic crossover With features like these and more you can quickly try out a variety of system ideas and because the Kappa 54a belongs to a related product family you re assured future expansion will look as good as it sounds KAPPA 54A AMPLIFIER FEATURES The Kappa 54a is a 4 channel power amplifier that offers stereo bridged mono or tri mode operation and is rated at 50 watts rms per channel into a 4 ohm load In a bridged mono configurations front and rear amplifiers can deliver up to 150 watts rms for the same load The 54a also features 2 ohm operation rated at 75 watts rms per channel Bridge stereo switches for fast system setup Built in 12 dB per octave electronic crossovers variable from 32 to 320 Hz Individually selectable high and low pass filters for all outputs with through pass on amplifier outputs and front rear sum on auxiliary outputs Amplifier input sensitivity controls to match a wide range of input signal levels from 250 mV to 9 V Five protec
6. a front and rear controls for crossover input and output 2 Depending on your system plan set the AMP and AUX switches to LP low pass HP high pass or FLAT refer to Figure 8 SETTING INPUT SENSITIVITY Initially turn the front and rear input sensitivity GAIN controls to their minimum counter dockwise positions refer to Figure 8 1 Reconnect the negative lead to your vehicle s battery Apply power to the audio system and play a favorite music track from CD or tape NOTE After the source unit is on gr n LEDs on the top pane will illuminate indicating the amplifier is on If not check the wiring especially the remote connection from the source unit Also refer to Troubleshooting on thenext page 2 On the source unit increase the volume control to maximum position Slowly increase the Front and Rear GAIN controls clockwise towards three o clock and at the same time listen to the quality of the reproduced sound At some point you ll hear distortion on the music peaks Stop the adjustment and turn it back slightly INSTALLING THE CONTROL COVER After wiring and testing the Kappa 54a amplifier install the control cover using the enclosed machine screws to deter tampering and help seal out dust NOTE Do not over tighten the machine screws Doing so may crack the cove Owner s Manual Installation Guide 7 TROUBLESHOOTING Use the following guide to identify symptoms and solve problems
7. ar panel Figure 7 Wiring connections for the Kappa 54a amplifier 6 Infinity Kappa 54a Power Amplifier INSTALLATION continued 3 Make sure the wires are firmly seated in the Weco 2 pin connector and that each screw is completely tightened Insert the wired connector into the POWER socket on the amplifier Press it in until it stops 4 Using the Weco 5 pin connector connect a blue wire from the source unit s remote connection tothe REM terminal Depending on polarity requirements e g bridged mono or tri mode configurations see Figures 1 through 3 on page 3 connect speaker wires from the speakers to the L and R and terminals as required by your system plan ui Make sure the wires are firmly seated in the Weco 5 pin connector and that each screw is completely tightened Insert the wired Weco 5 pin connector into the 5 pin socket on the amplifier Press it in until it stops 6 Connect RCA cables from a source unit to the L and R INPUT jacks SETTING THE CROSSOVER IMPORTANT If you plan to use the Kappa 54a to drive full range speakers set both AMP and AUX filters to FLAT refer to Figure 1 on page 3 and Figure 8 below and skip to the next section Setting Input Sensitivity 1 Set the front and rear CROSSOVER controls to the frequency recommended by the speaker manufacturer refer toFigure 8 Ifthevalueis unknown set the control midway c R 0 S S 0 V E R Figure8 Kappa 54
8. ppa 54a amplifier driving front and rear pairs of full range speakers Set Front Filters To FLAT amp F R on AUX To FLAT on top panel on top panel LP oy LP an HP M HP MM e FLAT PM e FLAT PE eP ai ue UD FR X Figure2 Thiswiring Set Front Mode Set Rear Mode diagram shows a To STEREO To STEREO Kappa 54a amplifier driving a front pair of twecte midrange systems and a rear pair of full range speakers on top panel on top panel E BR g BR e ST e ST Set Front Filters Set Rear Filter To HP amp F R on AUX To FLAT on top panel on top panel IP A AU o H HP Mm HP Mm e FLAT P e FLAT P l i i LP U He OD FR X Figure3 Thiswiring SetFrontMode Set Rear Mode diagram shows a To STEREO To BRIDGE Kappa 54a amplifier set for tri mode operation to drivea front pair of twecte midrange systems and a single rear subwoofer on top panel on top panel E BR A BR e ST e ST Set Front Filters Set Rear Filter To HP amp F R on AUX To LP on top panel on top panel i 4 LP oA He MP HP MA e FLAT PI e FLAT PI T 7 P LP af HP UM FR X For system expansion ideas seethe next page NOTE For simplicity Figures 1 through 3 do not show power remote and input connections KAPPA 54a rear panel KAPPA 54a rear panel KAPPA 54a rear panel ea as salva Owner s Manual Installation Guide 3 SYSTEM EXPANS
9. rature is not over 194 F 90 C no short circuits speaker loads are not less than 1 ohm 2 ohms in mono Set Input Sensitivity correctly see previous page Check connections refer to Applications see page 3 Infinity constantly stri ves to update and improve existing products as well as create new ones therefore the specifications and construction details in this and related Infinity publications are subject to change without notice Unibloc is a trademark of Infinity Systems Inc 8 Infinity Kappa 54a Power Amplifier P N SH1103 Rev 2
10. st Once the wires are fastened in each shell they provide additional gripping area for easy connector removal When routing cables keep input signal cables away from power cables and output speaker wires as shown in Figure 6 below When making connections make sure that each connection is clean and properly secured Observe the polarity markings on the rear panel Refer to the application drawings Figures 1 through 3 on page 3 to set up the amplifier for operation in stereo bridged mono bi amp or tri mode configurations If the amplifier s fuse needs replacement use only the same rating and type as a replacement Do not substitute another kind SPEAKER Cables Chassis Ground Figure 6 To minimize possible noise pickup use this suggested cable routing scheme to plan your amplifier installation Kappa 54a Amplifier Chassis Ground POWER and REMOTE Cables Owner s Manual Installation Guide 5 INSTALLATION The Kappa 54a is easy to install For optimum performance we recommend using high quality twisted pair shielded RCA audio cables and 14 gauge or larger speaker wire Also you ll need a minimum of 12 gauge stranded copper wire e g red and black jackets for the power connections Use 18 gauge e g blue jacket wire for remote turn on Depending on your total system plan allow for adequate time and the possibility of overnight storage of your vehicle since it may take more than
11. the next page for ideas on designing a system Also save these instructions for future reference IMPORTANT Installation of automotive stereo com ponents can require extensive experiencein performing a variety of electrical and mechanical procedures Although these instructions explain how to install a Kappa Power Amplifier in a general sense they do not show the exact installation methods for your particular vehicle If you do not have the experience do not attempt the installation yourself instead ask your Authorized Infinity Car Audio Dealer about professional installation options DECLARATION OF CONFORMITY CE We Infinity Systems A S Kongevejen 194B DK 3460 Birker d DENMARK declare in own responsibility that the product described in this owner s manual is in compliance with technical standards EN 55013 A12 8 1994 and EN 55020 12 1994 pol Steen Michaelsen Infinity Systems A S Birker d DENMARK 3 97 TABLE OF CONTENTS aaa 3 System ERI ica 4 Precautions And Notes ciao 5 Motala eee E EA 6 MOLLE Ratei 8 APPLICATIONS For your convenience we ve included several application diagrams to help you plan your own system installation Figures 1 through 3 show how to configure the Kappa 54a for stereo bridged mono and tri mode operation Set Front Mode Set Rear Mode To STEREO To STEREO on top panel on top panel DJ BR LJ BR e ST e ST Set Rear Filter Figure 1 This wiring diagram shows a Ka
12. tion levels guard against over voltage under voltage over power over temperature and over current situations 2 color LED array indicates green when power is on and orange when protection is activated Industrial grade gold plated pre wire and plugin connectors for an easy to install high quality interface Transparent control cover to deter tampering yet provide a clear view of installation settings Built in automotive type fuses to protect the amplifier Unibloc chassis provides improved heat sink capacity and exceptional RFI shielding characteristics Agout THE WARRANTY You ve selected a premium product that offers superior performance and advanced materials resulting from over 25 years of car audio design This Infinity product is made with our ongoing dedication to creating the best consumer audio products possible As a result you can expect your new Kappa Power Amplifier to provide you with many years of listening enjoyment All Infinity Automotive Products carry a limited parts and labor warranty see the enclosed warranty card so retain the bill of sale to protect your purchase and to aid us with any servicerelated questions you may have 2 Infinity Kappa 54a Power Amplifier ABOUT THIS MANUAL To attain maximum amplifier performance we encourage you to read the remaining pages before installing and operating your new Infinity Kappa Power Amplifier Especially review the Applications section on
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