1999 Chevrolet Blazer - Stereo Integrity, Ground Zero, Soundstream

[gckless]

So, just to go over things: DC 5.0k, wired to .7ohms. Set gain with sub level at 0 on HU, -2 is where I believe I'm safe right now, that's where I don't smell coil.

These tests were done with one of the songs that the sub's been getting hot/stinky with, that main note is somewhere in the mid 30's. I set the DMM to max hold, but the clamp meter didn't have that feature, so I'll just take the max I seen on the clamp meter to give the benefit of the doubt here. Not super accurate, but it will give the max possible wattage I could have seen at any one time.

Test 1 - Sub level at -2 on HU

https://www.youtube.com/watch?v=fBdSH92FIgM&list=UUjdY_itePDSpaV-eC_KmL8A

VAC - 53.9V

Amps - 33.2A

Watts - 1789W

Impedance - 1.6ohms

Test 2 - Sub level at -1 on HU

https://www.youtube.com/watch?v=FhAxuspt1Wo&list=UUjdY_itePDSpaV-eC_KmL8A

VAC - 61.1V

Amps - 37.5A

Watts - 2291W

Impedance - 1.6ohms

Test 3 - Sub level at 0 on HU.

https://www.youtube.com/watch?v=8cFAUlkzD8E&list=UUjdY_itePDSpaV-eC_KmL8A

VAC - 67.7V

Amps - 41A

Watts - 2775W

Impedance - 1.6ohms

All I did were these three, played it literally about 15-20 seconds longer, and I smelled coil and the cap was warm.

Thoughts?

[Blockburner]

checked your batteries individually?

[RossGo]

I know you have volt meters, but have you checked voltage at the amp inputs with a DMM while doing similar tests?

I doubt that is the case, but you are on the low side on battery reserve for 5k, regardless of the 270xp.

Would also put the "electrical" blame to rest, for yourself and the internetters

[gckless]

checked your batteries individually?

I have not.

I know you have volt meters, but have you checked voltage at the amp inputs with a DMM while doing similar tests?

I doubt that is the case, but you are on the low side on battery reserve for 5k, regardless of the 270xp.

Would also put the "electrical" blame to rest, for yourself and the internetters

So here's my logic: if there's something wrong with my electrical, if there's not enough supply, I will see clipping in the output. Right? Like, that's the whole problem with not enough electrical? Supply and/or voltage will affect output, but you would see that on a scope. I may not be getting the full output I can get out of the amp, but what I'm getting is clean.

Am I wrong?

[Blockburner]

I would think that less causes more heat build up than clipping. Clipping generally comes from over doing it. Or am I wrong...Is your amp getting hot as well?

[Karkov]

I forgot they were heating up as well. (to what I was saying earlier)

[REH]

Electrical doesn't seem to be the issue here at all, even if he has what some are saying to be the low side of the battery reserve... That woofer is getting a clean signal.

Not to mention, he said he has a 270 alt, and 3 batteries and he's not having issues after playing hours at a time draining down, he has had them near instantly... And, he was having the problems when he's clamping 1.7k watts which he has well more than enough electrical for.

Everybody always talks about this famous Tantric smell... So you're more than likely having that happening and freaking you out (justifiably) or there is actually some issues with the woofer itself being it is a fresh build and you're having problems from the start.

[RossGo]

I'm not positive how well your O-scope shows the detail of clipping

A DMM is an easy second check to cancel that idea out.

Is your amp getting warm or hot at all?

[gckless]

Amp isn't getting any warmer than it did on the last setup. I really don't think electrical is the issue at this point.

[RossGo]

I would agree

If you were clipping, the amp would also be getting warm quickly, right?