Front passenger speaker "pops" when starting car

[Tbonem3]

Hi all,

I had component CDT CL-6 in the front (passive) and coax cdt cl-6ex rear running off Memphis mc2004 amp. Everything has been great, no ground loop or buzz or whine. No amp thump or crackling or anything until... I started to install new speakers (CDT HD-6cf). I've only replaced the front woofers so far, but I now get a loud pop from the right side when I start the car. This has never happened before. Wire is 16 gauge and I crimped on quick connects to clip to the speaker terminals (spades).

Could it just be a loose ground spade or perhaps not a good enough crimp on the quick connect? CDT's negative terminal is really skinny compared to the positive and the quick connect is a little hard to get on there tightly. The door is back on and I only have time to post, I'll take everything apart tomorrow I guess.

I've search a number of forums and google and surprisingly, I didn't find much in the way of results - I expected this to be somewhat common.

I'm grounded to the car, wire brushed the metal, 8 gauge wire to the amp. I have zero alternator whine or buzz. After the pop, music sounds fantastic. I don't have the polarity wrong.

Any ideas? I'm guessing the speaker is getting a power spike when I start the car - so I can only think it's a bad ground.

Speakers where bought new and look perfectly fine and sound great otherwise.

I'm stumped Thanks!

Tyler

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[CSCStang]

Hi all,
I had component CDT CL-6 in the front (passive) and coax cdt cl-6ex rear running off Memphis mc2004 amp. Everything has been great, no ground loop or buzz or whine. No amp thump or crackling or anything until... I started to install new speakers (CDT HD-6cf). I've only replaced the front woofers so far, but I now get a loud pop from the right side when I start the car. This has never happened before. Wire is 16 gauge and I crimped on quick connects to clip to the speaker terminals (spades).

Could it just be a loose ground spade or perhaps not a good enough crimp on the quick connect? CDT's negative terminal is really skinny compared to the positive and the quick connect is a little hard to get on there tightly. The door is back on and I only have time to post, I'll take everything apart tomorrow I guess.

I've search a number of forums and google and surprisingly, I didn't find much in the way of results - I expected this to be somewhat common.

I'm grounded to the car, wire brushed the metal, 8 gauge wire to the amp. I have zero alternator whine or buzz. After the pop, music sounds fantastic. I don't have the polarity wrong.

Any ideas? I'm guessing the speaker is getting a power spike when I start the car - so I can only think it's a bad ground.

Speakers where bought new and look perfectly fine and sound great otherwise.

I'm stumped Thanks!

Tyler

Heard this a few times with CDT comps. Swap them with the ones you had in there and see if it's still doing it.

 

[Tbonem3]

Odd that it's just one though - is what you've heard is that the speaker can just be defective like that?

 

[Tbonem3]

To be more clear, it doesn't pop when turning on accessory power (head unit only), just when I turn the ignition over.

 

[r0llinlacs 10+ year member]

is your turn on hooked to accessory or ignition?

sounds like something is backfeeding into the remote wire. try putting a diode on it. although it is weird only one speaker does it, but backfeed could also just be affecting only one channel on the amp for some reason.

 

[Tbonem3]

Ya, I was thinking remote wire too. Def a wire problem between amp and speaker, not headunit. Does it without rcas plugged in. Thanks.