Hi all,
I have developed a strange engine noise problem since putting in a JBL 1400.1 amplifier.
The problem manifests as the alternator noise being heard through the front stage amp only when the RCAs from the sub pre out on the head unit AR connected to the JBL.
The JBL May be plumbed into the power circuit but the alternator whine doesn’t become apparent until the RCAs are plugged in.
I’ve tried swapping the RCAs to the front stage amp and the noise is independent of which set of RCAs are used; it only occurs when the JBL RCAs are connected to the head unit.
Any guesses as to what is going on chaps?
I have developed a strange engine noise problem since putting in a JBL 1400.1 amplifier.
The problem manifests as the alternator noise being heard through the front stage amp only when the RCAs from the sub pre out on the head unit AR connected to the JBL.
The JBL May be plumbed into the power circuit but the alternator whine doesn’t become apparent until the RCAs are plugged in.
I’ve tried swapping the RCAs to the front stage amp and the noise is independent of which set of RCAs are used; it only occurs when the JBL RCAs are connected to the head unit.
Any guesses as to what is going on chaps?