TROUBLESHOOTING

Symptom

 

Diagnosis

 

Remedy

 

 

No sound from speakers

 

Wires not connected properly.

 

Check wiring, repair or replace.

 

 

Amplifier has no output.

 

Check with working amplifier and

 

 

 

 

repair or replace as needed.

 

 

Speaker wires are shorted to each

 

Check wiring with a volt/ohm meter

 

 

other or to the chassis of vehicle.

 

and repair or replace as needed

 

 

Speakers are blown.

 

Check with working speaker and

 

 

 

 

repair or replace as needed.

 

 

 

 

 

Distorted sound from

 

Incorrect wiring between crossover

 

Check wiring, repair or replace.

speakers

 

and speakers

 

 

 

 

 

 

 

Tweeters “burn up”

 

Excessive power from amplifier

 

Check gain settings on amplifier and

easily

 

 

 

readjust as necessary

 

 

Equalizer (if available) has excessive

 

Check settings on equalizer and

 

 

boost in the high frequency range

 

readjust as necessary

 

 

 

 

 

Engine noise from one

 

Wires shorted to chassis of vehicle.

 

Check wiring with a volt/ohm meter

or more speakers

 

 

 

and repair or replace as needed

 

 

Speaker wires are routed near high

 

Re-route speaker wiring away from

 

 

power source. (Power cables,

 

noise sources.

 

 

vehicle computers, etc.)

 

 

 

 

Crossover is mounted near high

 

Move crossovers away from noise

 

 

power source.

 

sources.

SPECIFICATIONS

 

 

 

 

 

 

 

 

FEATURES - Tweeters

 

• 25mm Voice Coil

Inverted Aluminum Dome

Rubber Surround

• 3 Mounting Applications

Nominal Diameter (inch)

1-7/8" (48mm)

Nominal Impedance (ohms)

4

Frequency Response

4kHz-24kHz

Sensitivity (SPL@1w/1m)

90dB

RMS Power Handling

100 Watts

(with supplied crossover)

 

8

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Rockford Fosgate FNQ4401X, FNQ3514, FNQ3414, FNQ3146, FNQ3614 manual Troubleshooting, Symptom Diagnosis Remedy, Specifications