JVC CS-BB2 user service Operations, Phase and Sound Adjustment, Troubleshooting, Specifications

OPERATIONS

Attaching the remote controller

•Do not place the remote controller where it will be exposed to direct sunlight.

Cautions

• When using this unit, deactivate all sound adjustment functions except volume level; otherwise, sound may be distorted.

PHASE AND SOUND ADJUSTMENT

Use a CD with rich bass sound to test and adjust phase and sound.

Main Unit

When your car receiver is equipped with

Low Pass Filter, switch to “OFF.”

Switch to the position (+/–) which gives you better sound.

Remote Controller

Turns on and off the subwoofer output. When it is on, the lamp lights up.

Adjust the subwoofer output level. (Center: 0 dB)

TROUBLESHOOTING

For more details, consult JVC IN-CAR ENTERTAINMENT car audio dealer.

No sound is heard.

•Is the blue with white stripes connected correctly?

•Is audio cord connected to the LINE IN jacks?

•Is this subwoofer system grounded?

Alternator noise is heard.

•Keep the power cord away from the audio cord.

•Keep the audio cord away from other electrical cables in the car.

•Confi rm if the ground wire is connected securely to a metal part of the car.

•Confi rm if the noise originates in the receiver.

SPECIFICATIONS

Type	Closed Active Subwoofer (Built-in amplifier)
Speaker Unit	14 cm (5-9/16in.) cone
Input Terminal	LINE IN (1 system), 0.19 V/25 kΩ
	SPEAKER (1 system), 3.7 V
Power Output	32 W RMS x 2 channels at 2 Ω
	and ≤ 1% THD + N
Signal-to-Noise Ratio	75 dBA (reference: 1 W into 2 Ω)

Maximum Amplifier Power Output	60 W + 60 W (Impedance 2 Ω + 2 Ω )
Cut-off Frequency	110 Hz (L.P.F. switch “ON”, –12 dB/oct low pass filter)
Crossover Frequency	20 Hz to 200 Hz (L.P.F. switch “ON”)
	20 Hz to 500 Hz (L.P.F. switch “OFF”)
Sound Pressure Level	88 dB/ m (with line input: 0.03 V)
Level Control	–50 dB to 0 dB (Center) to + 10 dB
Power Requirement	DC 14.4 V (11 V to 16 V allowance)
	Negative ground
Dimensions (W/H/D)	290 mm × 60.5 mm × 200 mm
	(11-7/16in. x 2-7/16in. x 7-7/8in.)
Mass	2.1 kg (4.7lbs) (Excluding accessories)
Supplied Accessories	Remote controller (cord: 3 m/9.8 ft.) × 1
	Power cord (3 m/9.8 ft.) × 1
	Stay (Metal tool ) × 4
	Tapping screw (	4 × 16 mm/11/16 in.) × 4
	Mounting screw (	4 × 20 mm/13/16 in.) × 4
	Velcro tape × 4
	Double-sided tape × 1
	Crimp connector × 1
	Wire clamp × 1

Design and specifications are subject to change without notice.

4