AQ2200D fried, try to find out how!

[shizzzon 10+ year member]

Audioque is already aware of this so while i wait for shipping, i wanna know if u guys can think of how this happened before i have to wait a week before they tell me.

I have 2 AQ2200ds strapped together.

The power light was always on on both amps so no reverse wiring there.

They never went into protect.

Voltage sitting at 13.5v

Gain half way, subsonic all the way down, lpf at 110hz.

Preout voltage 4v, preout maxed out on head unit, Sub output is turned on, bass is on +3 boosted at 80hz.

I was on the phone with AW and everything was verified that everything was hooked up 100%.

Even the resistance on the terminals read 1.4ohms so everything was perfect.

Turned on the stereo, had to crank it very loud just to get an "ok" sound out of the setup.

What did it sound like?

sounded like the subs were out of phase...

But that couldnt be because they are wired in series, then parallel so out of phase is impossible.

We checked the rcas, everything had a perfect connection.

We left this song playing for about 15 seconds....

All of a sudden, the slave amp just completely started smokin.... BAD.

The entire underside of the amp, all vents on the bottom and both ends of the amp were venting smoke.

Immediately turned the car off and disconnected the remote wires.

The master amp is fine but both are being shipped back...

So, what do u guys think may have happened?

IT is a signal issue but how could a signal issue cause that kind of damage?

Click to read more...

 

[DB_DRAG_SPL 10+ year member]

User error

 

[Ford302Redneck 10+ year member]

Could have been a flaw from the factory.

No way really to be able to tell what happened.

 

[shizzzon 10+ year member]

i like some input not a brief statement and that's it.

DJ walked me through every single itty bitty detail on setting these amps up and i had it nailed down perfectly before i even called.

 

[Louisiana_CRX 5,000+ posts]

sounds like something was wrong ...most likely a voltage or ground problem...

 

[DBDesignsElite]

Question. What as far as power. Batteries, Wireing, What size, and alternator etc. Are you useing?

 

[duece212 5,000+ posts]

voltage was at 13.5, where was it when you were trying to crank on it?

What electical setup you running?

edit...That dood above my post is faster than I am

 

[shizzzon 10+ year member]

voltage is at 13.5v AND has a 12v cutoff switch so if it drops below 12v, the entire audio setup will shut off to prevent damage so no voltage issue.

Ground is ran directly to battery terminal and batteries are grounded with 3 2/0 wires.

 

[yunvme666 10+ year member]

thats gotta be the first ive heard blowing up so far......

 

[DBDesignsElite]

voltage is at 13.5v AND has a 12v cutoff switch so if it drops below 12v, the entire audio setup will shut off to prevent damage so no voltage issue.
Ground is ran directly to battery terminal and batteries are grounded with 3 2/0 wires.

Is that the Cadence Unit you are using for the undervoltage protection??
What kinda batteries??

 

[shizzzon 10+ year member]

ok jsut saw the other posts.

Voltage is irrelevant at time of damage due to the cut off switch i have back there so i know it was above 12v easy.

Stock 100A alt, i ran 1 3/0 cable to the rear on a strapped pair of paralleled 200A solenoids(because i am getting a 300A alt soon). Outputting a single 2/0 wire to 3 powermaster batts. 2 D5100s and 1 D3100.

ALL batts are wired in parallel with 2/0 wire.

Both amps are ran through it's own 200A fuse holder with 2/0 wire then into the amp terminal.

The master amp is grounded directly to the car.

The slave amp is grounded to the battery bank which againthe battery bank is grounded with 3 2/0 wires.

I tested the voltage on the middle battery(d3100) at it's terminal, 13.5v

 

[bad_trip 10+ year member]

maybe the amp was...hot?

 

[DBDesignsElite]

Humm Current Problem. 13.5 sitting doesnt mean everythings ok.

 

[shizzzon 10+ year member]

yea it does...

This is in a new car so the computer controls the regulator.

The voltage up front is at 13.8v.

Voltage in the rear is 13.5v

With a total of 490A worth of fusing back there(sundown 100.4 also back there), 0.3v drop isn't that bad.

the amp might have been hot?

Dont know, cant reply back to that because i never touched it.

Why would one get hot and the other not?!?!

Well, we may not be able to find the culprit of the problem so i guess i'm just gonna have to wait.

Their master tech is gonna be callin me tomorrow.

 

[duece212 5,000+ posts]

sounds like alot of connections, who knows if one may be loose. Also product has problems, just nature of the business...some units are going to fail, some will get internally damaged in shipping :/

you said your resistance read 1.4 at the terminals, was that your final load?