Hi, new to car audio

[99XJ]

Hi everyone,

I did a search but was unable to find exactly what i was looking for. If you know of a similar thread could you please direct me to it.

So I recently purchased a jeep and was thinking of installing 2 12" alpine type r subwoofers in it. I noticed that they sell them in 2 ohm and 4 ohm. When I compared stats they were identitcal which left me not sure on which one to purchase. Now if I were to hook up two 4 ohm subs they would stay at 4 ohms, or do i have that completely wrong? I was just wondering which would be better and what kind of amplifier they would need RMS wise. Any help would be greatly appreciated and sorry if this has already been posted.

Click to read more...

 

[bigmack2007 10+ year member]

It is all about how you wire them. A dual 4 ohm subwoofer can be wired in parallel to 2 ohms or in series to 8 ohms. The lower the number the more power will be drawn from the amp, you just have to make sure the amp is capable of powering at that particular impedance.

 

[99XJ]

OK thanks. I was thinking of getting this amp http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=19251 (Alpine MRP-M500). Now it says 500 w RMS @ 2 ohms. Does that mean it will push 500 watts to each sub or 250 watts to each since there are two?

 

[standbackimapro 10+ year member]

Yahh 500WattsX1 at 2ohms would be 250 watts rms per sub basically

 

[WKD TC]

i dont think that amp would cut it

 

[97accordalpine 10+ year member]

Yeah that amp will power them but they wont be anywhere near their full potential. I have a m500 on one type r and its begging for more.

 

[standbackimapro 10+ year member]

Yeah that amp will power them but they wont be anywhere near their full potential. I have a m500 on one type r and its begging for more.

Yah those subs can handle if i remember correctly, 500 watts rms

so your gonna need somthing alot closer to 1000 watts rms, or like 800 watts rms, somthing close

 

[99XJ]

Thanks everyone you have been a great help. Looks like I'll be looking for a stronger amp.