Check to be sure there are no speaker wires touching ground, and that the wires are connected in phase to the head unit.
5 1/4" Doors
Left Front (+)
Left Front (-)
Right Front (+)
Right Front (-)
6" x 9" Rear Deck
Left Rear (+)
Left Rear (-)
Right Rear (+)
Right Rear (-)
The symptoms you are relaying definately sound like an internal amplifier problem. It is fading in and out for a reason - usually due to heat.
Have you had the radio bench tested (seperate from the car) to eliminate the car as being the culprit?
Since the radio was run with damaged speakers originally, the output or amplifier power supply on the amplifier may be bad.
As an alternative to repairing, I would suggest investing in a small 2 channel amplifier to power the speakers.
The radios claim 50W per channel, but in reality give 12-15W RMS power.
A dedicated amplifier with built in crossovers and gain adjustments will prolong the life of your speakers and add to the tonal qualities of your new speakers. Instead of turning up the volume on the head Unit, and sending out a distorted signal that will blow your speakers, an amplifier will give more CLEAN power to them, so it will be louder at a lower volume setting.
This will bypass the internal amplifier on the radio, and send a Low Level signal ONLY thru a set of RCA cables.
Jan 10, 2009 |
Car Audio Receivers