Kenwood eXcelon KAC-X621 User's Manual
Contents
1. FREQUENCY H2 FREQUENCY Hz SENSITIVITY FILTER AMP CONT ISF OPERATION FILTER AMP CONT ISF OPERATION HPF 0M ON MONO Lch ON ON MONO Lch OFF OFF OFF OFF 8 OFF OFF L M B Tri mode High pass Subwoofer Principle of Tri mode l l L R Bridged Method of frequency band division using a coil and capacitor in case of 6dB oct slope Coil L Passes low frequencies and blocks high frequencies Low pass Capacitor C Passes high frequencies and blocks low frequencies High pass Crossover Frequency CENTER UNIT Frequency wA ov gt E 159xR 159000 fc Cut of Frequency Hz wO O IC fue Sem fcx R R Speaker Impedance Q 50 200 50 200 MIN 5 0 2 MAX 8600 5CV FREQUENCY Hz SENSITMITY V Example When it is required to set a crossover frequency of 120 Hz using speakers with an FILTER AMP CONT ISF OPERATION impedance of 4 ohms S ON ON MONO Lch Prepare commercially available coil and capacitor with the closest ratings to the results calculated from the formula above The capacitor rating should be as close as LPF OFF OFF STEREO possible to 331 25 uF and the coil rating should be as close as possible to 5 3 mH OFF ACAUTION If you wish to bridge connect a speaker the speaker impedance must be no less than 4 ohms Connecting a speaker with an impedance lower than 4 ohms may damage the unit2. nput Impedance Low Pass Filter Frequency 24 dB oct High Pass Filter Frequency 12 dB oct nfrasonic Filter Frequency 24 dB oct Frequency Response 0 3 dB 50 200 Hz variable 50 200 Hz variable 15 Hz Audio Section eee KAC PS621 Max Power Output Rated Power Output Normal 4 Q 20 Hz 20 kHz 0 05 96 THD 2 Q 1 kHz 0 5 96 THD Bridged 4 O 1 kHz 0 5 96 THD Rated Power Output 8 144 V Normal 4 O 20 Hz 20 kHz 0 05 96 THD 4 0 DIN 45324 B 14 4M 2 Q 1 kHz 0 5 96 THD Bridged 4 Q 1 kHz 0 5 96 THD Sensitivity rated output MAX nput Impedance Low Pass Filter Frequency 24 dB oct High Pass Filter Frequency 12 dB oct nfrasonic Filter Frequency 24 dB oct Frequency Response 0 3 dB Signal to Noise Ratio 50 200 Hz variable 50 200 Hz variable KAC X621 PS621 Amplifier Control Section EQ Bass frequency 60 80 100 200 Hz _ __ _ __ _ _ _ _ _ 15 415 dB Bass Q factor 1 00 1 25 1 50 2 00 Treble frequency 10 12 15 17 kHz Treble level 15 dB General Q _ _ KAC X621 PS621 Operating Voltage 44V 11 16 V allowable Current Consumption B 12 0 V 1 kHz 10 96 THD 4 Dimensions W x H x D 446 x 61 x 259 5
3. TEMP FAN items are displayed repeatedly Press the MENU button for at least 2 seconds The indicator flashes in the Demonstration mode Canceling the Demonstration mode Press any button to cancel the Demonstration mode Control an Amp from Center Unit You can control the sound by controlling amplifiers from the Center Unit 1 Enter AMP Control mode Select the AMP Control mode by following the AMP Control procedure given on the Operation Manual of the Center Unit NOTE Use the set item and value operation buttons by following the instructions given on the Operation Manual of the Center Unit 2 Select an amp number to operate Operate the desired set item with the Center Unit Select the AMP NO AMP CONTROL NO display NOTE When the Center Unit is in the STANDBY mode message AMP OFF is displayed and you cannot operate the set items 3 Set an ID number of Amp to operate Set an amp s ID number on the Center Unit You can select an ID number of 0 to 7 of connected amps 4 Select the AMP Control item for adjustment Select the desired set item on the Center Unit 5 Adjust the AMP Control item You can set a value of each item on the Center Unit The set items and their values are switched and displayed as follows Display Range Adjustment Item VOLT CURR TEMP FAN he amp state is displayed VOLT ndicates the source volt
4. Be sure to connect capacitors to speakers to which high frequencies will be passed Failure to do so will result in a drop of the combined impedance with the subwoofer Ensure that the withstand voltage and current ratings of the capacitors C and coils L are sufficient 8 English Troubleshooting Guide What might appear to be a malfunction in your unit may just be the result of slight misoperation or miswiring Before calling service first check the following table for possible problems SOLUTION Connec POSSIBLE CAUSE Input or output cables are disconnected Protection circuit may be activated Volume is too high The speaker cord is shorted PROBLEM No sound No sound from one side Blown fuse replace the input or output cables Check connections by referring to Protection function Replace the fuse and use lower volume After check the speaker cord and fixing the cause of the short he fuse The output level is too small or too large The input sensitivity adjusting control is not set to the correct position Adjust the control correctly referring to Controls Connec and wires well Connec anything The sound quality is bad The sound is distorted The speakers wire are connected with wrong C polarity A speaker wire is pinched by a screw in the car body The switches may be set improperly them properly checking S
5. 01 50 02 00 Bass Q Factor ea When the bass extend is set to ON low frequency response is VI ON OFF extended by 20 i TREB 10 12 15 17 kHz reble Center Frequency IRG T 15 I 15 dB reble level Vor 20 0 dB Volume offset TEMP FAHR Fahrenheit or he Fahrenheit or Centigrade temperature unit can be selected for CELS Centigrade he Display mode DEFA For the operation method refer to Default AMP 0 7 he ID Number you have assigned is displayed 6 English 4 Exit Menu mode Press the MENU button for at least 1 second NOTE When you hold down the I button 3 or more seconds during ID number display AMP message MEMO is displayed and you can register the values you have set with the Amplifier Control To call the Amplifier Control s values hold down the a button 3 or more seconds during ID number display AMP Then you can recall the value when message LOAD is displayed Default Resets all values you have set to the initial default values 1 Enter Menu mode Press the MENU button 2 Select Default mode Press the MENU button Select the DEFA display 3 Resets the value to its default Press the gt button for at least 2 seconds Message is displayed and the value is initialized 4 Exit Menu mode Press the MENU button for at least 1 second NOTE Volume offset value can not be initialized Display Demonstration The VOLT CURR
6. VOLT CURR TEMP FAN is displayed 2 Select a display item Press the 44 or gt button The display items are switched in the following sequence 1 2 9 O LI o3 aoo 50 200 WINSY 6 20M Tr pid Tur FREQUENCY ts REaUENcytt SENSITIVITY FILTER AMPCONT ISF OPERATION 099 y Display Information VOLT Indicates the source voltage V CURR Indicates the current consumption A TEMP Indicates the internal temperature F C FAN Indicates the rotation speed of the cooling fan in 3 steps FAST SLOW or OFF 3 Exit Menu mode Press the MENU button for at least 1 second NOTE When the internal temperature is 22 F 30 C or less 22F 30C is displayed Separate Amp Control You can control sounds using the Amplifier Control function of the unit 1 Enter Menu mode Press the MENU button 2 Select the Menu item Press the MENU button The setup items are displayed approximately 1 second first then the set values are displayed 3 Adjust the Menu item Press the 44 or gt button The setup items and set values are switched as follows Display Range Adjustment Item VOLT CURR TEMP FAN For the operation method refer to Display mode BASS 60 80 100 200 Hz ass Center Frequency BAG 8 15 B 15 dB ass level BAQ 01 00 0125
7. switch of the Center Unit and turn it On again TO H U terminal After you have set the Master amplifier connect it to the Center Unit REMOTE terminals Used to connect to Slave amplifiers RESET button Resets the microprocessor of the unit NOTE The values you have set with the Amplifier Control are NOT reset 01 LINE IN terminal 2 LINE OUT terminal The signal that s input from the line input terminal is output 3 Power indicator Lights when the POWER switch is turned On The indicator flashes several seconds when the POWER switch is turned On or when the Protection function is activated LPF FREQUENCY control Sets the cutoff frequency when the FILTER switch is set to LPF 05 HPF FREQUENCY control Sets the cutoff frequency when the FILTER switch is set to HPF FILTER switch This switch allows to apply high pass or low pass filtering to the speaker outputs HPF High Pass Filter position The filter outputs the band of higher frequencies than the frequency set with the HPF FREQUENCY control OFF position The entire bandwidth is output without filtering LPF Low Pass Filter position The filter outputs the band of lower frequencies than the frequency set with the LPF FREQUENCY control The speaker output is automatically switched to monaural L R AMP CONT amplifier control switch Used to bypass the circuit wh
8. Blocking these openings will inhibit the cooling of the internal emperature and result in malfunction When making a hole under a seat inside the trunk or somewhere else in he vehicle check that there is nothing hazardous on the opposite side such as a gasoline tank brake pipe or wiring harness and be careful not to cause scratches or other damage Do not install near the dashboard rear tray or air bag safety parts The installation to the vehicle should securely fasten the unit to a place in which it will not obstruct driving If the unit comes off due to a shock and hits a person or safety part it may cause injury or an accident After installing the unit check to make sure that electrical equipment such as the brake lamps turn signal lamps and windshield wipers operate normally English 3 Connection Commercially available parts A WARNING To prevent fire caused by a short in the wiring connect a fusible link or breaker nearby the battery s positive terminal ACAUTION If sound is not output normally immediately turn power off and check connections Be sure to turn the power off before changing the setting of any switch CENTER UNIT CD receiver etc ir Power control wire RCA cable RCA cable ground terminal Left input If the fuse blows check wires for shorts
9. KENWOOD KAC X621 KAC PS621 KAC X521 KAC PS521 STEREO BRIDGEABLE POWER AMPLIFIER KENWOOD CORPORATION Safety precautions AWARNING To prevent injury or fire take the following precautions When extending the ignition battery or ground wires make sure to use automotive grade wires or other wires with a 8 mm AWG 8 or more to prevent wire deterioration and damage to the wire coating To prevent a short circuit never put or leave any metallic objects such as coins or metal tools inside the unit If the unit starts to emit smoke or strange smells turn off the power immediately and consult your Kenwood dealer Do not touch the unit during use because the surface of the unit becomes hot and may cause burns if touched A CAUTION To prevent damage to the machine take the following precautions Be sure the unit is connected to a 12V DC power supply with a negative ground connection Do not open the top or bottom covers of the unit Do not install the unit in a spot exposed to direct sunlight or excessive heat or humidity Also avoid places with too much dust or the possibility of water splashing When replacing a fuse only use a new one with the prescribed rating Using a fuse with the wrong rating may cause your unit to malfunction To prevent a short circuit when replacing a fuse first disconnect the wiring harness Available Control Units A KENWOODS LX Bus supporting Center Unit release
10. POWER switch Off and release the protection If the error message continues consult to the KENWOOD dealership i i When the speaker cord is shorted De E m es When the speaker output is in contact with the vehicle ground AMP OFF When you use the Amp Control in the Standby mode NOTE umber x on the display indicates the amp s ID number English 7 System examples E 2 channel system B High power 2 channel subwoofer system LL Left speaker L Left subwoofer Bridged LI Right speaker CENTER UNIT 150 100 1 100 2 ii 70 K S C CV 4 0 3 50 200 50 200 MIN S 0 2 MAX CENTER UNIT K Right subwoofer Bridged LPF HPF INPUT FREQUENCY Hz FREQUENCY H2 SENSITIVITY FILTER AMP CONT ISF OPERATION HPF ON 0M MONO Lch 150 100 1 x 70 150 05 50 200 50 200 4 MIN S 0 2 MAX LEeoui ENCY H2 FREQUENCY Ha SENSITIVITY OFF I OFF OFF FILTER AMP CONT ISF OPERATION HPF 0M 0M MONO Lch OFF LPF OFF I OFF STEREO IL B 2 channel Subwoofer system Left speaker High pass CENTER UNIT LI Right speaker High pass Subwoofer L R Bridged 1 150 100 150 100 1 100 2 100 2 i i oa 70 70 0 3 4 0 3 50 200 50 50 200 200 MIM5 0 2 MAX 50 200 MIN S 0 2 MAX FREQUENCY Hs FREQUENCY H2 sENSTVTYW
11. age V CURR ndicates the current consumption A TEMP ndicates the internal temperature F C FAN ndicates the rotation speed of the cooling fan in 3 steps FAST SLOW or OFF BAS F 7 BASS FREQ 60 80 100 200 Hz ass Center Frequency BAS G BASS GAIN 15 15 dB ass level Q FA Q FACTOR 01 00 01 25 01 50 02 00 Bass Q Factor EXT BASS EXT ON OFF When the bass extend is set to ON low frequency response is extended by 2096 TRE F TREB FREQ 10 12 15 17 kHz reble Center Frequency TRE G TREB GAIN 15 15 dB reble level VOL VOL OFFSET 20 0 dB Volume offset AMP NO 0 7 Select an ID number of the amp you use AMP CONTROL NO 6 Exit AMP Control mode Releases the Amp Control mode by the Center Unit NOTE When you have controlled the bass or treble of the sound using the Equalizer or DSP function of the Center Unit and when you amplify the same requency as that controlled by the Amplifier Control the sound may be distorted due to an input overflow Messages that may be displayed on the Center Unit When you are selecting an item with the Amp Control an error status of the amplifier is displayed on the Center Unit Display Informations AMP x E 01 AMP gt lt COND E 01 _ When the inside of the unit is overheating When the unit has failed and direct current voltage is generated to the speaker s output AMP X E 02 AMP x COND E 02 NOTE Turn the
12. are going to be connected should be greater than the maximum output power in Watts of the amplifier Use of speakers having input power ratings that are less than the output power of he amplifier will cause smoke to be emitted as well as damage The impedance of the speakers that are going to be connected should be 20 or greater for stereo connections or 40 or greater for bridged connections When more than one set of speakers are going to be used calculate the combined impedance of the speakers and then connect suitable speakers to the amplifier Combined impedance Installation KAC X621 PS621 446 mm KAC X521 PS521 386 mm KAC X621 PS621 432 mm KAC X521 PS521 372 mm 157 mm Q6 or 252 mm 265 mm Hexagon socket Hexagon Wrench head cap screw M4 x 8 mm Duct ax Cooling fan Installation board etc thickness 15 mm or more Self tapping screw 95 x 18 mm Accessories Part name External View Number of Items Self tapping screws 95 x 18 mm Hexagon socket head cap screw M4 x 8 mm D a Cover Terminal cover Power terminal Hexagon Wrench Installation procedure Since there are large variety of settings and connections possible a
13. ccording to applications read the instruction manual well to select the proper setting and connection 1 Remove the ignition key and disconnect the negative terminal of the battery to prevent short circuits 2 Set the unit according to the intended usage 3 Connect the input and output wires of the units 4 Connect the speaker wires 5 Connect the power wire power control wire and grounding wire following this order 6 Install the installation fittings in the unit 7 Attach the unit 8 Install the terminal cover 9 Connect the negative O terminal of the battery ACAUTION Do not install in the below locations Unstable location In a location that interferes with driving In a location hat gets wet In a dusty location In a place that gets hot In a place that gets direct sunlight In a location that gets hit by hot air Do not install the unit under the carpet Otherwise heat build up occurs and the unit may be damaged Install this unit in a location which allows heat to easily dissipate Once installed do not place any object on top of the unit The surface temperature of the amplifier will become hot during use Install he amplifier in a place where people resins and other substances that are sensitive to heat will not come into contact with it This unit has cooling fans to decrease the internal temperature Do not mount the unit in a place where the cooling fan and ducts of the unit are blocked
14. d Connections Fea Speaker Bridged o Set the ID number of the Master amplifier to 0 You can connect up to 7 Slave amplifiers Assign them ID numbers 1 to 7 and do not duplicate them ACAUTION Do not connect 2 Master amplifiers to the Center Unit If done you cannot control all amplifiers connected to the Center Unit The LX AMP and the sensor unit cannot be connected simultaneously You must connect any of them at a time NOTE The total length of S video cables you can connect is 14 meters 46 ft maximum If the cable length exceeds this limit you cannot control amps from the Center Unit If you assign the same ID number to multiple amplifiers they malfunction when you operate any of them from the Center Unit If you assign ID number 8 or 9 to a Slave amplifier it is not recognized by the Center Unit Controls KAC X521 r KAC X621 3 KAC PS521 rs KAC PS621 t MMC p BRIDGED SPEAKER oureur omero O s AD Wd AL Emmy A CD Fuse KAC X621 PS621 25 Ax 3 KAC X521 PS521 30 Ax 2 Battery terminal 3 Ground terminal Power control te
15. d in 2004 or later can control this unit The operations of the LX AMP Control are explained in the Operation Manual of the Center Unit NOTE The LX AMP and the sensor unit cannot be connected simultaneously You must connect any of them at a time NOTE If you experience problems during installation consult your Kenwood dealer If the unit does not seem to be working right consult your Kenwood dealer 2 English Cleaning the unit If the front panel gets dirty turn off the power and wipe the panel with a dry silicon cloth or soft cloth ACAUTION Do not wipe the panel with a hard cloth or a cloth dampened by volatile solvents such as paint thinner and alcohol They can scratch the surface of the panel and or cause the indicator letters to peel off To prevent battery rise When the unit is used in the ACC ON position without turning the engine ON it depletes the battery Use it after starting the engine Protection function There is a Protection function installed in the unit to protect the unit and speakers from various problems When Protection operates the display informs you of the condition Display Informations E 01 When the inside of the unit is overheating When the unit has failed and direct current voltage is generated to the speaker s output EQ NOTE Turn the power OFF and release the protection If the E 02 code does not disappear contact your K
16. en you do not control the sound with the Amplifier Control ON position Allows you to control the sound with the Amplifier Control OFF position Bypasses the Amplifier Control circuit NOTE Amplifier control is possible even while OFF ISF infrasonic filter switch When this switch is ON the frequencies which are below the audible range and therefore inaudible are cut off so that the quality of the audible frequencies can be improved OPERATION switch This switch is used to select the operation mode of the amplifier e STEREO position The amplifier can be used as a stereo amplifier MONO Lch position Amplifies the signal input from the left side only Set to this position and make bridged connections to use as a high power monaural amplifier The input right signal is not output Q9 INPUT SENSITIVITY control Set this control according to the pre output level of the center unit connected with this unit NOTE For the pre output level refer to the Specifications in the instruction manual of the center unit English 5 Amplifier Control System 2 n x IL y 1 air 1 A MI III II pi qv MIVI pua 6 Q lt gt Display mode You can set up the display items as follows 1 Enter Menu mode Press the MENU button
17. enwood dealer When the speaker cord is shorted Ep When the speaker output is in contact with the vehicle ground VOLT display is blinked When voltage gets out of operation range Wiring Take the battery wire for this unit directly from the battery If it s connected to the vehicle s wiring harness it can cause blown fuses etc If a buzzing noise is heard from the speakers when the engine is running connect a line noise filter optional to each of the battery wire Do not allow the wire to directly contact the edge of the iron plate by using Grommets Connect the ground wire to a metal part of the car chassis that acts as an electrical ground passing electricity to the battery s negative terminal Do not turn the power on if the ground wire is not connected Be sure to install a protective fuse in the power cord near the battery The protective fuse should be the same capacity as the unit s fuse capacity or somewhat larger For the power cord and ground use a vehicle type fireproof power wring Cord with a current capacity greater than the unit s fuse capacity Use a power wiring cord with a diameter of 8 mm AWG 8 or greater When more than one power amplifier are going to be used use a power supply wiring wire and protective fuse of greater current handling capacity han the total maximum current drawn by each amplifier Speaker Selection The rated input power of the speakers that
18. et switches properly by referring he GO of the terminals the speaker wire again so that it is not pinched by 0 System examples The AMP CONT has been turned OFF The filtered band has been controlled by the Amplifier Control Thesounddoesnotchange even when you have changed it with the Amplifier Control Turn the AMP CONT ON Turn the filter Off The set value cannot be changed by the Amplifier Control of the unit he AMP Control of the Center Unit is being used Release the AMP Control mode of he Center Unit The Amplifier Control cannot be operated from the Center Unit An incorrect ID number is used for the Master amplifier The ID number of the amplifier has been changed Always set the ID number of the After you have changed the ID number of an amplifier turn Off the POWER switch of the Center Unit first then turn it On again aster amplifier to 0 Specifications Specifications subject to change without notice Audio Section RMS Power Output 8 14 4 V CEA 2006 Normal 4 Q 2ch 1 0 96 THD N 2 Q 2ch 1 0 96 THD N Bridged 4 Q 1 0 96 THD N Dynamic Power B 14 4 V CEA 2006 Output Regulation 8 14 4 V CEA 2006 Signal to Noise Ratio CEA 2006 Bypass CEA 2006 Sensitivity rated output MAX i 3 dB 4 Q 83 dBA W 4 Q 83 dBA W 4 Q
19. mm 17 5 8 x 2 3 8 x 10 3 16 inch 446 x 61 x 265 mm 17 5 8 x 2 3 8 x 10 3 8 inch WATER 4 42 kg 9 74 Ibs Installation Size W x H x D KAC X521 165W 254 W 1 kHz 505 VV X 1 170W under 0 3 dB 4 Q 81 dBA W 4 Q 82 dBA W 4 Q 0 2V 5 0V 0kO 50 200 Hz variable 50 200 Hz variable 5 Hz 5 Hz 70 kHz KAC PS521 000 W 80Wx2 60Wx2 320 VV X 1 25Wx2 25Wx2 250W x2 500W x1 0 2V 5 0V 0kO 50 200 Hz variable 50 200 Hz variable 5 Hz 5 Hz 70 kHz 05 dB KAC X521 PS521 60 80 100 200 Hz 15 15 dB 00 1 25 1 50 2 00 0 12 15 17 kHz 15 15 dB KAC X521 PS521 44V 11 16V allowable 37A 386 x 61 x 259 5 mm 5 3 16 x 2 3 8 x 10 3 16 inch 386 x 61 x 265 mm 5 3 16 x 2 3 8 x 10 3 8 inch 3 83 kg 844 Ibs English 9 KENWOOD
20. rminal Controls the unit ON OFF NOTE Controls the unit power Be sure to connect it with all the systems Speaker output terminals Stereo Connections When you wish to use the unit as a stereo amplifier stereo connections are used The speakers to be connected should have an impedance of 20 or greater When multiple speakers are to be connected ensure that the combined impedance is 2O or greater for each channel Bridged Connections When you wish to use the unit as a high output monaural amplifier bridged connections are used Make connections to the LEFT channel and the RIGHT channel SPEAKER OUTPUT terminals The speakers to be connected should have an impedance of 40 or greater When multiple speakers are to be connected ensure that the combined impedance is 4Q or greater ACAUTION The rated input of the speakers should be no less than the maximum output of the amplifier Otherwise malfunction may result RCA cable ground lead terminal When using an RCA cable with a ground lead attached connect the ground ead to this terminal ID NUMBER switch Sets an amp identification number ID to be used for amplifier control from he Center Unit Assign ID Number 0 to an amplifier when you use it as the Master amplifier Assign ID Numbers 1 to 7 to amplifiers when you use them as Slave amplifiers Do not duplicate these numbers NOTE After you have changed ID numbers of amplifiers turn Off the POWER
21. then replace the fuse with one of the same rating Check that no unconnected wires or connectors are touching the car body Do not remove caps from unconnected wires or connectors to prevent short circuits Connect the speaker wires to appropriate speaker connectors separately Sharing the negative wire of the speaker or grounding speaker wires to the metal body of the car can cause this unit to fail After installation check that the brake lamps Battery wire winkers and wipers work properly Protective Fuse Battery 8 LX Bus connection To KENWOOD disc changer External optional accessory CENTER UNIT i 17 Ground wire Control cab option L L Master amplifier 6 WAN Ad 0 mE ID NUMBER Extension wire 5V000000IC RCA cable L ID NUMBER Slave amplifier 1 4 n 7 2045 Not more than 14m 46 ft L Slave amplifier 7 7 40 ID NUMBER 4 English Right input ol Right speaker so Left speaker B Bridge
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