First off, READ the entire post. Don't give me your opinion until you do so, because you'll likely say to do something I've already tried.
I bought the Seas L18 speakers about 2 weeks ago and have had them installed a week today. Since I bought them I noticed the passenger's side speaker made a crappy sound. (video at the end) After a while, I decided to see if the driver's side does it, too. It does.
What I've done so far:
I've connected wire directly to the tinsel leads.
I've tried every combination of speaker channel I can think of.
I played them on 2 seperate amps.
I played them off a new set of wires directly to the speakers.
I played music, then tones.
I switched channels on the amp.
I played in the doors & free air.
After I got the same "popping" sound from both, I measured voltage with a DMM.
For passenger's side 21.8v. So ~ 60watts @ 8ohms.
For Driver's side 24.7v. ~77watts @ 8ohms.
Clipping shouldn't be an issue here, since my amp is rated @ 300w x 2 bridged @ 4ohms. Therefore, 150w x 2 @ 8ohms.
I only am trying to get rated power out of these speakers and am having a rough time.
I called Madisound and the guy said he didn't know what it could be. He suggested I try a new amp, and I did. Other than that, I ran into a wall with them. He also said he was sure it wouldn't be break in, since that doesn't make a "noise", it just causes the speaker to not sound as clear.
Any suggestions here? Am I simply overpowering them (with much under suggested power)? They barely even move @ 100watts @ 4 ohms. I'm serious. They've been playing for at least 6 hours on at least 50watts, but never more than 100w. They've never played below 80hz w/a 30db slope, and only gone up to 1.2k today just to see if there was a difference. Usually they've been between 80-315.
I'm about to pull my f*ing hair out trying to figure this out. On top of all that, they just don't sound good unless I turn it down pretty low. Once I get to about 50w they start sounding crappy. I've overdriven speakers a few times when setting gains just to test my limits, but never has one made this noise before. It seems to coincidental that they would both be bad out of the box, however, these haven't ONE TIME seen power over the 100w @ 8ohms they're rated for. Not fuggin once!
Here's a link to the video. This is the sound both make.