Why did my JL 300/2 burn out

[Konsty25]

Set up im runnin is a JL 300/2 (old slash series amp 12 years old maybe thats why), 2014 Honda acoord oem head unit, audio control adq-61 processor, 4 infinity 2 ohm reference coax speakers (6032 model i think) front and rear. sub in on a jl 500/1

I loved the sound coming from the speakers with that jl amp. It was a two channel amp but it still pushed the speakers really good, was loud clear and i really liked how they sounded. I had it running for about an hour and all the sudden the speakers just cut off and there was no power to the amp. And it was really hot and smelt burnt. I had an audio shop put it in locally so im assuming everything was set up right. Only thing i can maybe think of is i was messin with the prcoessor and had the input/output levels a little too high

Any ideas? I bought a little alpine mrp f300 4 channel amp on crutchfield and just put that in and i dont like it nearly as much. Doesnt sound as clear or loud, i know its not nearly as good a amp but thought it might be ok.

Any suggestions on what may have caused the amp to fry? And also what amp to run these speakers with?

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[garychoffmann 10+ year member]

Personally I'd pick up a 300/4. Sounds like you were running it at 1 ohm per channel and it's rated 1.5 to 4. Which was probably fine if it was set correctly. If you started to mess with the controls you may have driven it into clipping which will cause extra current draw and have the amp heat up quickly. This is my assumption of course not knowing your power situation. But if it happened soon after messing with the controls it probably was clipping, low ohm load, not getting enough power or being able to ground that power efficiently. Many variables can lead to frying an amp

 

[Konsty25]

Personally I'd pick up a 300/4. Sounds like you were running it at 1 ohm per channel and it's rated 1.5 to 4. Which was probably fine if it was set correctly. If you started to mess with the controls you may have driven it into clipping which will cause extra current draw and have the amp heat up quickly. This is my assumption of course not knowing your power situation. But if it happened soon after messing with the controls it probably was clipping, low ohm load, not getting enough power or being able to ground that power efficiently. Many variables can lead to frying an amp

Thanks for the reply, Could be because the guy who installed it said my speakers were 4 ohms and i told him no they were only 2 ohms. Lookin into a 300/4 now. What i dont like now with my 4 channel amp is the rears. They sound like an echo and im trying to tune them out. I just dont like it, with the 300/2 everything sounded great and i didnt even really mess with the tuning.

 

[garychoffmann 10+ year member]

Might have the rears set to high. Also is it the vocals and midrange being a little hollow or tingy sounding?

 

[MutantDreams 10+ year member]

Try disconnecting the speakers and see if it will cut on.

 

[Konsty25]

Thanks for all the responses

The rears just sound like an echo im trying to tune them exactly the same as the fronts its just not working right...you can hear them and they sound different. Im considering going back to my Hertz comp set with just a two channel running them. But i really like how these infinitys sounded when i was running the 300/2 on em even more then the hertz comps.

Might try the 300/4 first though if i can get my hands on one at the right price

 

[MutantDreams 10+ year member]

Have you tried switching the rcas? Like the left with the right, one channel on the amp might be going out.

 

[Jroo 10+ year member]

If you had 4 speakers running off the 300/2, you were probably running 1 ohm assuming everything was wired correctly. I say this because you said the guy who installed it was not sure what ohm speakers you had, so no real telling how he wired everything. Do you know if the amp is in protect mode? JL amps have been know to go into protect mode which can be fixed vs. buying another amp

 

[Konsty25]

If you had 4 speakers running off the 300/2, you were probably running 1 ohm assuming everything was wired correctly. I say this because you said the guy who installed it was not sure what ohm speakers you had, so no real telling how he wired everything. Do you know if the amp is in protect mode? JL amps have been know to go into protect mode which can be fixed vs. buying another amp

I dont know if it did or not how would i be able to find that out?

 

[Konsty25]

one more question.

Now when i talk on the phone with blue tooth the person says they hear a bad echo of themselves when they talk to me. It didnt use to do this with the other amp...any help on that?

 

[garychoffmann 10+ year member]

When amp was replaced they unhooked the battery. Lost all your old settings. Which head unit?

 

[Konsty25]

Its the stock head unit....not sure how that would really effect it i havent touched the settings. Any idea?

 

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