need to know

[volvobot]

I have 2 subs that RMS 300 watts and I was going to put an amp that RMS 150 watts on two channels at 2 ohms and I was wondering if it would hurt the speakers or the amp?

Thanks,

Volvobot

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[johnecon2001 5,000+ posts]

it might... underpowering speakers can cause harmful levels of distortion (which causes voltage spikes, which kills voice coils) when you drive the amp hard. And since these are subs, I seriously doubt your going to not want them to bump.

 

[B@SSAN8OR 10+ year member]

the most common way to blow a speaker is by underpowering it

 

[DBfan187 5,000+ posts]

oh god, not this again.

When my volume is low, I'm underpowering my speakers.

I'll leave you with that...

 

[johnecon2001 5,000+ posts]

oh god, not this again.
When my volume is low, I'm underpowering my speakers.

I'll leave you with that...

yup thats correct. But underpowering them alone does not kill the speakers. its the voltage spikes from the amplifiers peaking that does. So if you cant hear the subs because the amp isnt powerful enough, then you turn it up and send the amp clipping away.. that is what kills the speakers. so get a more powerfull amp that you dont have to turn up all the way to achieve the volume that you desire. then you are all kewl.

 

[Jamesr316 10+ year member]

Well Vovlvobot, if you dont give the subs enough power, you might get a short and could potentiakky set the car in fire... My advice, give it double its rated power.

 

[johnecon2001 5,000+ posts]

Well Vovlvobot, if you dont give the subs enough power, you might get a short and could potentiakky set the car in fire... My advice, give it double its rated power.

yeah where did you hear that.. cuz your deffinetly talking out your @ss. Thats not true at all.

 

[Johnny Drama 5,000+ posts]

I had to learn this the hard way. Under powering does NOT cause damage. Its when the user either turns the gain up or the head unit up too far that causes the damage.