I'm going to start my system with just a sub and an amp. Since its going to run off the stock head unit, should i be looking at amps within the right RMS range for 2 ohms?

 

welcome

first off, which car? second, what is your end goal? if i'm not mistaken i dont think you really need to take 2 ohms into consideration just yet. What's your budget?

 

its an 03 CLs, I'm gonna get a JL 12w3v2 and hook it up to the stock headunit. the budget isn't so important, although i'd like to spend around 250 on the amp. if all i need is 2 ohms then i will spend less than 250

 

anyone?

 

I think a number of people are unclear on what you are asking.

I think I am, and we've corresponded a lot already.

Is the JL sub you're getting the dual voice coil version? If so, you probably need a mono amp, not a stereo amp bridged to mono (most of those won't do 2 ohms, and the ones that will cost a lot).

Remember that a lot of the CLass D amps will jam your FM reception.

 

First I've heard of that, can you explain and tell me what to look for in Class D amps?

 

The power supply in many Class D amps creates FM interference.

The TSX has an unshielded FM amp in the C pillar which is adversely affected by this.

The JL mono amps might cause an issue, unknown, but the Hifonics and the MTX have been known bad actors in the past.

 

So that's not a problem for the CL's?

 

No one can tell you for sure.

The interference may occur in many systems. The main problem with amps that interferes with AM/FM reception is the poor design itself. It's not only limited to Class D. Many Class A/B amps are suspected to AM interference due to the power supply toroid. Basically it lacks shielding on the transformer. It can happen in many amps if not designed and tested properly. Another thing to note is that not all radios will be affected.

In the end, there are many factors that will determine if your reception will be affected or not.

 

^^^ Thanks....looks like more research to do.

 

In reality, most people couldn't even tell a difference. I say just try it out. most likely, you will have no problem. JL Audio isn't likely to cheap out on their designs.

 

I have a Bazooka class D sub amp and an MTX 4 channel amp and my AM/FM reception is fine...I'd even venture to say it's BETTER than before.

 

^^ '05 TSX with NAV