JVC KS-AR7004 Manuel d'utilisation

Page 3

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BASS BOOST controller

Turning this boosts the 45 Hz frequency within the range of 0 dB to +18 dB. Adjust the level

while listening to the sound. This control is preset to MIN when the unit is shipped.

Input LEVEL controller

The input level can be adjusted with this control when this unit is connected to other source

equipment. Adjust the level while listening to the sound. This control is preset to MIN when
the unit is shipped.

CROSSOVER fi lter switch
OFF: Normally, set to this position. The switch is preset to this position when the unit is

shipped.

LPF: Set to this position when you want to turn on the LPF (Low-Pass Filter) switch (the

Low-Pass Filter transmits frequencies lower than the cutoff frequency).

HPF: Set to this position when you want to turn on the HPF (High-Pass Filter) switch (the

High-Pass Filter transmits frequencies higher than the cutoff frequency).

CROSSOVER frequency controller

Turning this adjusts the cutoff frequency within the range of 30 Hz to 500 Hz. Adjust the level

while listening to the sound. This control is preset to 30 Hz when the unit is shipped.

POWER/PROTECTOR lamp

The lamp lights in green while the unit is turned on. When the lamp does not light or lights in

red with the unit on, it indicates there may be any trouble (see "TROUBLESHOOTING").

Power lndicator

The blue lamp illuminates while the unit is turned on.

Maximum Power Output

800 W

Load Impedance

4

Ω (2 Ω to 8 Ω allowance)

4

Ω (4 Ω to 8 Ω allowance) (Bridge Mode)

Frequency Response

5 Hz to 50 kHz* ( +0, –3 dB)
* Subsonic fi lter cuts off extremely low frequency signals less than
20 Hz.

Input Sensitivity/Impedance

2 V/45 k

Ω (0.3 V to 6 V, variable)

Distortion

Less than 0.04% (at 1 kHz)

Power Requirement

DC 14.4 V (11 V to 16 V allowance)

Grounding system

Negative ground

Dimensions (W×H×D)

15-

3

/

4

inch × 2-

3

/

8

inch × 11-

3

/

8

inch (400 mm × 60 mm × 288 mm)

Mass (approx.)

KS-AR7004: 11.7 lbs. (5.3 kg)
KS-AR7002: 11.5 lbs. (5.2 kg)

Accessories

Speaker input connector
KS-AR7004: 4P × 2

KS-AR7002: 4P × 1

Screw (Dia.

3

/

16

inch (4 mm) ×

13

/

16

inch (20 mm)) × 4

Hex wrench

4 mm × 1

3 mm × 1

Spacer × 6

Bracket

L × 1

S × 2

Screw (M4 ×

1

/

2

inch (12 mm)) × 6

Washer (M4) × 6

Spring Lock Washer (M4) × 6

Design and specifi cations are subject to change without notice.

TROUBLESHOOTING

For more details, consult your JVC car audio dealer.

The POWER/PROTECTOR lamp does not light.
• Change the fuses if the current one is blown.
• Connect the ground lead securely to a metal part of the car.
• Turn on the equipment connected to this unit.
• Use a relay if your system employs too many amplifi ers.
• Confi rm the battery voltage (11 V to 16 V).

The POWER/PROTECTOR lamp lights in red and/or the unit heats up abnormally.
• Use the speakers of suitable impedance.
• Correct the speaker wirings if they are short-circuited.
• Leave the unit turned off for a while to cool it down.

No sound is heard.
• Confi rm the connections for power supply (see “POWER SUPPLY” on page 1).
• Connect RCA pin cords to the INPUT jacks, or the speaker input connector to the HIGH INPUT

terminal.

Alternator noise is heard.
• Keep the power cords away from the RCA pin cords.
• Keep the RCA pin cords away from other electrical cables in the car.
• Connect the ground lead securely to a metal part of the car.
• Make sure the negative speaker leads do not touch the car chassis.
• Replace the plugs or use plugs with load resistors.
• Connect a bypass capacitor across the accessory switches (horn, fan, etc.).

Noise is made when you connect the unit to an AM tuner.
• Move the speaker and power cords away from the antenna lead.

CONTROLS

Control cover
To operate the following controls, remove the hex screws with a provided hex wrench (3 mm)

and detach the control cover. Attach it again after your operation.

KS-AR7004

KS-AR7002

Hex screw

Hex wrench
(3 mm)

KS-AR7002

2-speaker system plus subwoofer (1 amplifi er)

*

1

Not provided for this unit.

*

2

Bridge wiring

*

3

Use a High-pass crossover (not provided).

*

4

Use a Low-pass crossover (not provided).

The minimum impedance should be 4

for each of left and right speakers, and the

subwoofer.

Subwoofer

SPECIFICATIONS

Power Output

KS-AR7004: 100 W RMS x 4 channels at 4

Ω and ≤ 1% THD + N

KS-AR7002: 150 W RMS x 2 channels at 4

Ω and ≤ 1% THD + N

Signal-to-Noise Ratio

80 dBA (reference: 1 W into 4

Ω)

[European Union only]

EN, FR
© 2007 Victor Company of Japan, Limited

0207MNMMDWTKC

EN_KS-AR7004_7002[J].indd 3

EN_KS-AR7004_7002[J].indd 3

07.2.20 8:19:23 PM

07.2.20 8:19:23 PM

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