Autotek MM4000.1 going into protect... wtf

[01 S 10 10+ year member]

I have no idea why, It didnt get hot or anything... just went into protect after about 5 seconds on a longer bass note, not even at full volume (probably 90%). I disconnected my HD3's, still goes into protect. i have no clue, very frustrated and ready to give up on everything audio in my truck //content.invisioncic.com/y282845/emoticons/verymad.gif.3f39c5c2fd57527b671fad3efdfac756.gif

any advice/experience on what it could be?

Click to read more...

 

[01 S 10 10+ year member]

btw, im running a pretty decent electrical system (in my sig) and voltage rarely goes below 13 volts, and this time I know it was above 13volts because i didnt have the volume all the way up. (12.8 volts full tilt)

 

[RAB 10+ year member]

what ohm load where the subs at?

 

[x2o 10+ year member]

what ohm load where the subs at?

x2, and how are you measuring your voltage?

 

[01 S 10 10+ year member]

Dual 2, so 1 ohm each, amp runs 2kw @ 1 ohm x 2 (i didnt have it bridged)

 

[01 S 10 10+ year member]

x2, and how are you measuring your voltage?

I dont have a DMM, but a stinger volt meter on my batcap 800's about 1 foot from the amp's inputs.

 

[ascendantsubs1]

is it stuck in protect?

 

[x2o 10+ year member]

From what I've experienced those volt meter types tend to be off by .2-.5 volts most of the time, but I've never used a stinger one, maybe they're different.

As for why your going into protect, that's really weird. Usually when amps protect on long notes it's from voltage drop or heat, but you say it was none of those...

I'm gonna think about this, do some searching, see if I find anything. //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

Sorry I couldn't be of more help...yet! //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

 

[01 S 10 10+ year member]

is it stuck in protect?

yes, instantly goes into protect when powered on. even with no subs/rcas connected to it.

 

[01 S 10 10+ year member]

From what I've experienced those volt meter types tend to be off by .2-.5 volts most of the time, but I've never used a stinger one, maybe they're different.
As for why your going into protect, that's really weird. Usually when amps protect on long notes it's from voltage drop or heat, but you say it was none of those...

I'm gonna think about this, do some searching, see if I find anything. //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

Sorry I couldn't be of more help...yet! //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

thanks man, im not completely ruling out voltage or heat, but unlikely because its never gone below 12.8 volts when my truck is running. and i instantly put my hand to it and was barely warm because i had only been playing it for maybe 10 minutes.

 

[ascendantsubs1]

yes, instantly goes into protect when powered on. even with no subs/rcas connected to it.

God****it, i had the same problem w/ my American Bass 400.1s this week!

Both stay in protect, and i have the batcap 2000's and alt power to back one... Started beatn it, then NOTHING!!

 

[01 S 10 10+ year member]

If someone thinks they can do something with it, make an offer, im srsly pissed off and might sell everything in my sig.

Its getting too expensive these days to do this ish.

 

[x2o 10+ year member]

God****it, i had the same problem w/ my American Bass 400.1s this week!
Both stay in protect, and i have the batcap 2000's and alt power to back one... Started beatn it, then NOTHING!!

Maybe the world is revolting against Car Audio users and protecting everybodys amps...

 

[01 S 10 10+ year member]

God****it, i had the same problem w/ my American Bass 400.1s this week!
Both stay in protect, and i have the batcap 2000's and alt power to back one... Started beatn it, then NOTHING!!

dam man, are you sending it somewhere to get it fixed? i might contact dbr on mine.

 

[RAB 10+ year member]

disconnect all the wires from the amp and wait 5+min to give the amp reset its self it has worked for me