What went wrong here?

[BBBSS 10+ year member]

I have been using a Boston GT2125 amp for about 8 months now and suddenly I'm having trouble.

Last month or two when starting the car I'd get a humm for a second or two then a loud pop and no music. I could turn the car off and restart it and usually it would be fine. Happened maybe 3-4 times in the last two months but now its always doing it. One time I got a lil low volume music while it hummed then the pop and thats it.

Hooked up another amp I had laying around and everythings fine, so the problems with the amp. I looked over all the wiring and everything appeared fine before I tried the new amp.

I bought this from Techronics and they advertise a 2 year warranty. Anyone have any experience with these guys and warranty? Thanks for any help.

EDIT: Well I opened it carefully so you can't tell its been opened (no tags that rip etc) Found 4 spots that look questionable. No idea what these lil things are though?

Click to read more...

 

[beat-down69 10+ year member]

If you changed out the amp and everything was fine then why would you assume its your head unit. I would assume it was the amp. Cause your original amp when hooked up makes humming noises and pops then you change the amp out with old one laying around and no more noise and works fine then your head unit is fine. THATS MY OPINION

 

[Bettr n' Revrse 5,000+ posts]

I'd Say take it apart to see if you find anything but if it's under warranty Id take it in...

 

[BBBSS 10+ year member]

Sorry typo, I meant its NOT the head unit. lol

 

[Imtjnotu 5,000+ posts]

how bad was ur voltage drop?

 

[BBBSS 10+ year member]

Its a diesel truck with dual batteries and it has grid heaters with a huge draw when cold and warming up so it may have dropped to around 10.5-11 volts for about 10 seconds then back up to over 14 and back and forth like this for a minute or two max.

I haven't been running my subs since August so normally it had very little load on the system. I run two 31 series commercial batteries that are rated 1000 CCA with a huge reserve. Its a diesel truck so the grid heaters to warm up incoming air to the motor has a 180 amp draw when activated and cycles on and off till I start driving though. Radio would be turned down during this time though.

I have a big load on the amp so I tried keeping the gain down as well as the volume to a moderate level. I filled out my sig to show what I'm running. Maybe just too much for the amp?

 

[Imtjnotu 5,000+ posts]

it could be u were running on to low of a load with that many speaker sets on the amp.......that is one possibility that i think could lead to this.....how did you have them wired up?

 

[BBBSS 10+ year member]

Not sure the proper terminology for this but since the amp was a 2 channel I ran the left side speakers into the amp with the positives and negatives twisted together and stuffed into the same hole on the amp. (ie twisted the two positive wires together and put it in a single hole on the amp, same with the negatives) Front's were always a descent bit quieter with this setup.

I only had it shut down on me one time. I figured if it was too much it would have went into protection more than that. Just the few random buzz/pops but now that's constant.

I have a lead on a JL 300/4 I may pick up tomorrow that I think will work MUCH better with what I have going on here.

 

[CAT MAN 5,000+ posts]

without reading any other responses im going to go ahead and ask how cold it was. if it was pretty cold it could have gotten wet and popped

 

[BBBSS 10+ year member]

Dipped into the 20's at the coldest. Do amps really sweat and pop sometimes? Never heard of that one before but I guess I could see it. Any way to prevent this sort of thing?

 

[CAT MAN 5,000+ posts]

Dipped into the 20's at the coldest. Do amps really sweat and pop sometimes? Never heard of that one before but I guess I could see it. Any way to prevent this sort of thing?

yeah warm up your gear. i usually dont play my system if i see any sweat/dew/frost on it . amps are metal. the boards are plastic. yeah they sweat .

 

[wone 10+ year member]

any electronic will fail over time man

 

[audiobaun 5,000+ posts]

Not clear on the wiring though,did you wire to a 2/4/1/8/16 ohm load??What ohms are the speakers?You could have wired to an ohms load that the amp is not stable at, could have been the issue?

 

[disturbed471985 5,000+ posts]

Ur own sig says u need a better quality 4 channel it was just the audio Gods telling you to stop messing around and get it done.

 

[audiobaun 5,000+ posts]

With your components, they may be at a 2ohm load already, and adding another at 4 ohms will bring it to close to a 1ohm load, in thus your amp may not be 1ohm stable stereo??If both at 4ohms then 2ohms stereo, yet, most amps are 2ohms stereo stable , and alot are not at 1ohms.Sorry, just realized your set up