KAC-X650D - Car amplifier KENWOOD - Free user manual and instructions

USER MANUAL KAC-X650D KENWOOD

CcHoO1 Take the time to read through this instruction manual. Familiarity with installation and operation procedures will help you obtain the best performance from your new power amplifier. For your records Record the serial number, found on the back of the unit, in the spaces designated on the warranty card, and in the space provided below. Refer to the model and serial numbers whenever you call upon your KENWOOD dealer for information or service on the product. Model KAC-X650D/PS650D Serial number © PRINTED IN JAPAN B64-2270-00 (KM / EM)

Safety precautions KAC-X650D(KE)_ DT 02.2.15 11:29 AM Pagé 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 8mm? {AWG8) 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 touchedi. 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 + If you experience problems during installation, consult your Kenwood dealer + If the unit does not seem to be working right, consult your Kenwood dealer. FCC WARNING This equipment may generate or use radio frequency energy. Changes or modifications to this equipment may cause harmful interference unless the modifications are expressiy approved in the instruction manual The user could lose the authority to operate this equipment if an unauthorized change or modification is made This Class B digital apparatus complies with Canadian ICES-003: 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 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 batter 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 indicator informs you of the condition {Refer to page 6) Accessories Part name External Number of View Items Self-tapping screws A (5 x 18 mm) Terminal cover 2 Mounting Hardware 4 Hexagon socket head 4 cap screw (M3 x 8 mm) Self-tapping screws A (03 x 8 mm) Hexagon Wrench 1

1. Install the installation fittings in the unit.

3. Install the terminal cover.

ACAUTION + Do not install in the below locations: {Unstable location, In a location that interferes with driving, In a location that 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 the 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. Be careful not to block the cooling fan openings when installing the unit. Blocking these openings will inhibit the cooling of the internal temperature and result in malfunction + When making a hole under a seat, inside the trunk, or somewhere else in the vehicle, check that there is nothing hazardous on the opposite side such as a gasoline tank, brake pipe, or wiring hamess, 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

EL 0 suarenaernus The unit is a 5-channel amplifier incorporating 2 stereo amplifiers and 1 monaural amplifier in a single body. The stereo amplifier on one side is called amplifier À, while the one on the other side is amplifier B. The monaural amplifier is called the amplifier SUB This unit is compatible with a large variety of systems by combining the switches and functions described in the following About D-class (SUB.CH) A D-class amplifier uses an inaudible frequency as a switching pulse to change the pulse width to represent the music signal {Pulse Width Modulation: P.W.M.) @ INPUT SENSITIVITY control (A.CH/B.CH/SUB.CH) Adjust this control according to the pre-out level of the center unit connected to this amplifier. The sensitivities of amplifiers A, B and SUB can be adjusted independently regardless of the position of the input selector switch Refer to "Specifications" on the center unit's instruction manual about the pre-out level OPERATION switch This switch is used to select the operation mode of the amplifier This setting is valid for both the amplifier A and B + 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 4 English monaural amplifier. (The input right signal is not output.) © FILTER switch (A.CH/B.CH) 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: (B.CH only) The filter outputs the band of lower frequencies than the frequency set with the LPF FREQUENCY control The speaker output is automatically turned monaural (L+R) and the bass boost function is activated HPF FREQUENCY control {A.CH/B.CH) Sets the cutoff frequency when the FILTER switch is set to HPF. B.CH LPF FREQUENCY control Sets the cutoff frequency when the FILTER switch is set to LPF. © SUB.CH LPF FREQUENCY control This control adjusts the frequency band output from this amplifier SUB INPUT SELECTER switch {AB/A) This switch toggles the input signal of amplifier B + AB position: The input for terminal À is output from amplifier A, while the input for terminal B is output from amplifier B.

Tighten The input for terminal À is output from amplifiers À and B. (AB/SUB) This switch toggles the input signal of

The input for terminals A and B input is mixed and output from amplifier SUB + SUB po: & The input for the SUB terminal is output by L amplifier SUB. © B.M.S.(Bass management system) switch Bass boost centered on the frequency set by the B.M.S. FREQUENCY control The B.M.S. only applies to the amplifier SUB. + +12 position: Bass boost +12 dB + OFF position: Bass boost OFF + REMOTE position: Controls the B.M.S. from the Kenwood center unit. (Refer to page 5) B.M.S. FREQUENCY control When the B.M.S. switch is set on "+12dB"/ "REMOTE" the emphasized center frequency is adjusted V-COLOR (Variable color) button Select the ON color for the indicator Every time the button is pressed, 7 fixed colors and the variable color change. The color can't be set when the indicator is blinking E Controlling the B.M.S. from the Kenwood center unit (B.M.S. : Bass management system) When the B.M.S. switch is set in the remote position, the bass boost amount and frequency offset can be controlled from the center unit + Bass boost Center unit " display Setting "Flat /'OFF/"1" Bass boost OFF (Flat) +6" "17"2" Bass boost +6 dB [ab ‘+12 "2"3" Bass boost +12 dB DA +187 "37"4" Bass boost +18 dB + Frequency offset enayonit Setting "Normal" Itis the B.M.S. FREQUENCY control adjustment value Low The central frequency is 20- 30% low. For the center unit control method and setting display, refer to the Instruction Manual for the center unit. There may be cases when the center unit can't set the "Bass boost +18dB" or “Frequency Offset” English 5

KAC-X650D(KE)_ DT 02.2.15 11:29 AM Pagé Indicator CT, BE NN ] L à 5 KENWOOD T 7 | T AZ © NN Ve en Œ /ndicator You are notified of the unit's condition and malfunction (Protection function) by the indicator. + ON or color change in order. When operation is normal The color you want can be selected with the variable color button - The color blinks blue — When during operation — When the center unit/B.M.S. switch controls the B.M.S. + The color blinks yellow When the power voltage is less than 11V. The cause may be one of the below times. — When the vehicle battery is weak. — When the battery capacity is low. — When the battery cord is worn. — When the battery wire is too small or too long and can't supply enough current. + The color blinks purple When the unit has failed and direct current voltage is generated to the speaker's output Turn the power OFF and release the protection. If the indicator doesn't quit blinking, contact your Kenwood dealer. - The color blinks red When the inside of the unit is overheating. + The color blinks green — When the speaker cord is shorted — When the speaker output is in contact with the vehicle groundi 6 English

KAC-X650D(KE)_ DT 02.2.15 11:29 AM Pagé Connection & Terminal names @ Fuse (30 À x 2) @ Battery terminal 4 Ground terminal @ Amplifier A/B 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 2Q or greater When multiple speakers are to be connected, ensure that the combined impedance is 2Q 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 4Q or greater When multiple speakers are to be connected, ensure that the combined impedance is 4Q or greater. The rated input of the speakers should be no less than the maximum output of the amplifier. Otherwise malfunction may result @ Amplifier SUB speaker output terminal As this unit accepts speakers with a minimum impedance of 2 ohms, connect speakers with 2-ohm or higher impedance to these terminals: @ RCA cable ground lead terminal When using an RCA cable with a ground lead attached, connect the ground lead to this terminal @ A.CH/B.CH/SUB.CH LINE IN terminal % Power control terminal Controls the unit ON/OFF

Controls the unit power. Be sure to connect it with all the systems @ EXT.AMP.CONT. (external amplifier control) terminal Controls the B.M.S. Only Kenwood center unit models sold in 1999 or later with a "EXT.CONT.Y/'EXT.AMP.CONT." wire attached can be used Also, a maximum of 3 power amplifiers can be operated at the same time. There are cases when operation may not be possible due to wiring wire type and length English 7

KAC-X650D(KE)_ DT 02.2.15 11:29 AM Pagé Connection Installation procedure Since there are large variety of settings and connections possible according 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 unit in the car.

7. Connect the negative © terminal of the battery

ACAUTION + 1f 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 «If the fuse blows, check wires for shorts, 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, winkers, and wipers work properly. & English

Lead terminal* +++ Battery wire* F: Commercially available parts Battery To prevent fire caused by a short in the wiring, connect a fusible link or breaker nearby the battery's positive terminal Wiring +Take the battery wire for this unit directly from the battery. If it's connected to the vehicle’s wiring hamness, 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 units 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 than the total maximum current drawn by each amplifier EXT.AMP.CONT. (external amplifier control) terminal &

1. Peel the cladding of wire for a length of 11mm from the end

2. While pressing the lock release button with a slotted screwdriver, insert the wire.

KAC-X650D(KE)_ DT 02.2.15 11:29 AM Pagé. 10 Connection H RCA cable connection Commercially available parts RCA cable ground terminal ee Left input CENTER UNIT (CD receiver, etc.) + Right input RCA cable* E Speaker Selection + The rated input power of the speakers that 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 the amplifier will cause smoke to be emitted as well as damage + The impedance of the speakers that are going to be connected should be 28 or greater (for stereo connections, amplifier SUB), or 4Q 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 10 English

KAC-X650D(KE) DT 02.2.15 11:29 AM P Du E Speaker wire connection Front Left speaker Front Right speaker Subwoofer (L+R)

EE a (| Lead t I ead terminal = {Stereo Connections) © (Bridged Connections) Rear Right speaker Rear Left speaker Left speaker (Bridged) Arf | Subwoofer et | (L+R) Right speaker (Bridged) English 11

srenEo monouen ME) © (UD SU

eÉ0—(| Right speaker (Bridged) e Subwoofer me | wi ) AcH = PLTER = Ben ge me OFE HPe Hit

oreqee) mb Ler eme M cm) 1 Subwoofer @Principle of Tri-mode Method of frequency band division using a coil and capacitor…in case of 6dB/oct. slope Coil (LJ: Passes low frequencies and blocks high frequencies. (Low pass) Capacitor (CJ: Passes high frequencies and blocks low Crossover Frequency -3 dB . _ frequencies. (High pass) CÆrxR M $c-cutof Frequency (Ha) Frequenc = quency à. 159 im Speaker Impédance (2) @Example: When it is required to set a crossover frequency of 120 Hz using speakers with an impedance of 4 ohms. 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 possible to 331.25 {UF] and the coil rating should be as close as possible to 5.3 (mH) + 1f 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 unit «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 (LI are sufficient. English 13

KAC-X650D(KE)_DT 02.2.15

11:29 AM Page. 14 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.

PROBLEM POSSIBLE CAUSE SOLUTION

No sound. + Input (or output) cables are + Connect the input (or output} {No sound from one side.) (Blown fuse.) disconnected + Protection circuit may be activated. + Volume is too high + The speaker cord is shorted cables + Check connections by referring to ‘Indicator” + Replace the fuse and use lower volume + After check the speaker cord and fixing the cause of the short, replace the 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 Control" The sound quality is bad. {The sound is distorted.) + The speakers wire are connected with wrong polarity. + À speaker wire is pinched by a screw in the car body. + The switches may be set improperly. + Connect them properly checking the ® / © of the terminals and wires well + Connect the speaker wire again so that it is not pinched by anything. + Set switches properly by referring to "System examples" The external amplifier controller (B.M.S.) will not work. + The B.MLS. switch setting is incorrect. + The external amplifier control wire has come loose: + The B.M.S. switch is set to "REMOTE" + Check that the external amplifier control wire is properly connected. 14 English