Problem with Alpine PDX-4.100 Amplifier
by TigerWoodsIV - 12/6/09 9:55 PM
I just had an Alpine PDX-4.100 amplifier installed along with an Alpine IVA-W205 head unit, Type-X 6.5" components in the front, and Type-R 6x9s in the rear deck of my 2003 Infiniti G35 Coupe. Immediately upon getting into the car, I noticed there was a high pitched humming coming from the back 6x9s. It is not coming from the front speakers at all. The installer told me it is most likely a problem with the amplifier, and I'm just wondering if there is anything else I can try before I send it back for repair or replacement. It makes sense that it is the amplifier because it is constant and the volume never changes, and it is only in the back. It only stops when I turn the head unit off.