Engine noise after the sub was installed.. wondering if it has anything to do with the increase in power demand
That's odd but wouldn't be caused by the battery and wouldn't be caused by the increased electrical demand unless it only happens when the bridged amp is under a heavy load.
I dunno because the other day I was driving to work and I noticed some engine noise but it went away by itself - this was before the introduction of the sub
Hmmm I am using the factory earth point in a BMW - never had issues using that point before in my other car…
Engine whine usually comes from the ignition not the alternator - you can try and eliminate it with a cap but I'd try running a dedicated ground from each amp back to the battery and see if you can get rid of it that way. One of the amps will usually be the culprit and then you can clean the grounds (or upgrade them) to that amp.
I hear you… I am so space limited right now the thought of running more wires isn’t as easy as it sounds..
It's not meant to be a fix - troubleshooting technique to locate problem before throwing other fixes at it that could create future problems.
Let me see how it behaves tomorrow when I drive the car and see if it goes away like before if not I’ll have to see if I disconnect the sub if the noise goes away
I think you hit the nail on the head there, dirty ground can't handle the increased current. And the intermittent improvement is just from vibration temporarily improving contact.
Sounds like a thorough deox and cleaning is in order in your near future.
I dunno because I am using the Tchernov RCA cables and they have a screw lock head
Lol, the best of everything can go bad, it might not be bad but just loose somewhere.
