JVC KS-AX3102 Controls, Troubleshooting, Subwoofersystem 2 amplifiers, No sound is heard

KS-AX3101D

2-Subwoofer system (2 amplifiers)

•Use the speakers with an impedance of 2 Ω to 8 Ω.

•Incoming signals from INPUT jacks are emitted through the PRE OUT jacks.

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JVC car receiver, etc.

ıSpeaker input connector.

Line out (Rear)		Connector lead	To Receiver
or		aWhite "LEFT (+)"	= Left (+) lead
Subwoofer out		b Black "RECEIVER GND"	= Chassis*1
	*2	c Gray "RIGHT (+)"	= Right (+) lead
PRE OUT	INPUT HIGH INPUT
L	L/
R	R		Subwoofer
	PRE OUT	INPUT HIGH INPUT
*2	L	L/MONO
		R

Subwoofer

2-Subwoofer system

• Use the speakers with an impedance of 4 Ω to 8 Ω.

Å

JVC car receiver, etc.

ıSpeaker input connector.

	Line out (Rear)		Connector lead	To	Receiver
	or		aWhite "LEFT (+)"	= Left (+) lead
	Subwoofer out
			b Black "RECEIVER GND"	= Chassis*1
	*2
			c Gray "RIGHT (+)"	= Right (+) lead
PRE	INPUT	HIGH INPUT
L	L/MONO
R	R		Subwoofer		Subwoofer

5-speaker system plus subwoofer—5.1-channel (3 amplifiers)

•Use the speakers with an impedance of 2 Ω to 8 Ω.

•Be sure to connect the line output from the receiver to the left (L) jack on this unit.

Line out (Front)

CONTROLS
KS-AX3104
CROSSOVER					INPUT			CROSSOVER
					HIGH INPUT	HIGH INPUT
LPF	OFF	HPF	LEVEL		L/MONO	L/MONO	LEVEL	LPF	OFF	HPF
										POWER
			MIN	MAX			MIN MAX
			FRONT				REAR
KS-AX3102						KS-AX3101D
			CROSSOVER
LEVEL			LPF OFF	HPF		LEVEL	BASS BOOST	LPF
					POWER					POWER
MIN MAX						MIN MAX	MIN MAX	50Hz	200Hz

ÅPOWER indicator

The green lamp lights while the unit is turned on.

ıCROSSOVER filter 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 80 Hz.

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 150 Hz.

ÇInput 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.

ÎBASS 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 controller is preset to MIN when the unit is shipped.

‰LPF (Low-Pass Filter) controller

Adjust the cutoff frequency (the Low-Pass Filter transmits frequencies lower than the cutoff frequency) within the range of 50 Hz to 200 Hz. Adjust the level while listening to the sound. This controller is preset to 50 Hz when the unit is shipped.

TROUBLESHOOTING

The POWER indicator does not light.

• Change the fuses if the current one is blown.

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JVC car receiver, etc.

*2

*2

JVC amplifier, etc. (Purchased separately)

• Connect the ground lead securely to a metal part of the car.

• Turn on the equipment connected to this unit.

• Confirm the battery voltage (11 V to 16 V).

• Use a relay if your system employs too many amplifiers.

Line out		Subwoofer out		Line out (Rear)
(Center)				ı Speaker input connector.
*2		*2		Connector lead	To Receiver
				aWhite "LEFT (+)"	= Left (+) lead
				b Black "RECEIVER GND"	= Chassis*	1
	L	L/MONO	HIGH INPUT
	PRE	INPUT
	R	R		c Gray "RIGHT (+)"	= Left (+) lead

Front Rear

Speaker Speaker

• Leave the unit turned off to cool it down if it heats up abnormally.

No sound is heard.

•Confirm the connections for the power supply (see "POWER SUPPLY" on page 1).

•Connect the RCA pin cords to the INPUT jacks, or the speaker input connector to the HIGH INPUT terminal.

•Confirm the speaker wirings and the position of the CROSSOVER filter switch (See “SPEAKER CONNECTIONS” on page 2).

Alternator noise is heard.

JVC amplifier, etc.	Center Speaker
(Purchased separately)

Subwoofer

•Keep the leads of the POWER terminals 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 speaker negative leads do not touch the car chassis.

•Connect a bypass capacitor across the accessory switches (horn, fan, etc....).

Noise is made when you connect the unit to an AM (MW/LW) tuner.

• Move all the leads of this unit away from the antenna (aerial) lead.

SPECIFICATIONS
		KS-AX3104		KS-AX3102	KS-AX3101D
Power Output	60 W RMS × 4 channels at 4 Ω and ≤ 1% THD + N		65 W RMS × 2 channels at 4 Ω and ≤ 1% THD + N		250 W RMS × 1 channels at 4 Ω and ≤ 1% THD + N
• Normal Mode:
Signal-to-Noise Ratio	76 dBA (reference: 1 W into 4 Ω)		76 dBA (reference: 1 W into 4 Ω)		60 dBA (reference: 1 W into 4 Ω)
Power Output
• Normal Mode:	90 W RMS × 4 channels at 2 Ω and ≤ 1% THD + N		90 W RMS × 2 channels at 2 Ω and ≤ 1% THD + N		400 W RMS × 1 channels at 2 Ω and ≤ 1% THD + N
• Bridge Mode:	150 W RMS × 2 channels at 4 Ω and ≤ 1% THD + N		150 W RMS × 1 channels at 4 Ω and ≤ 1% THD + N		—
Maximum Power Output	800 W (400 W × 2)		400 W		800 W
Load Impedance
• Normal Mode:	4	Ω (2 Ω to 8 Ω allowance)	4	Ω (2 Ω to 8 Ω allowance)	4 Ω (2 Ω to 8 Ω allowance)
• Bridge Mode:	4	Ω (4 Ω to 8 Ω allowance)	4	Ω (4 Ω to 8 Ω allowance)	—
Frequency Response	5	Hz to 50,000 Hz ( +0 dB, –3 dB)	5	Hz to 50,000 Hz ( +0 dB, –3 dB)	20 Hz to 200 Hz ( +0 dB, –3 dB)
Input Sensitivity/Impedance	2	V/21 kΩ (0.3 V to 6 V, variable)	2	V/21 kΩ (0.3 V to 6 V, variable)	2 V/40 kΩ (0.3 V to 6 V, variable)
Distortion	Less than 0.04% (at 1 kHz)		Less than 0.04% (at 1 kHz)		Less than 0.08% (at 100 Hz)

Power Requirement	DC 14.4 V (11 V to 16 V allowance)	DC 14.4 V (11 V to 16 V allowance)	DC 14.4 V (11 V to 16 V allowance)
Grounding system	Negative ground	Negative ground	Negative ground
Dimensions (W×H×D)	335 mm × 51 mm × 212 mm	202 mm × 51 mm × 212 mm	222 mm × 51 mm × 212 mm
	(13-4/16in. × 2-1/16in. × 8-6/16in.)	(8 in. × 2-1/16in. × 8-6/16in.)	(8-12/16in. × 2-1/16in. × 8-6/16in.)
Mass (approx.)	2.43 kg (5.3 lbs)	1.52 kg (3.4 lbs)	1.83 kg (4.0 lbs)
Accessories	Speaker input connector 3P × 2	Speaker input connector 3P × 1	Speaker input connector 3P × 1
	Mounting Screw φ 4 × 20 mm (13/16 in.) × 4	Mounting Screw φ 4 × 20 mm (13/16 in.) × 4	Mounting Screw φ 4 × 20 mm (13/16 in.) × 4

Design and specifi cations are subject to change without notice.

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