How many ohms can my subs handle?

Question

I have an MTX T7500 Sledgehammer enclosure, and on the rear speaker connectors it says 8 ohms below the hook ups. Does this mean i can handle up to 8 ohms, or that i must have 8 ohms of resistance. Someone said that it can take 4 ohms, and thats what my amp pushes at 2 channels. I have an Mtx TA7804 amp.

Answer 1

The 8 ohms indeed represents the amount of resistance, or impedance, of your speakers -- and that's all it means, it does not tell you how much power your speakers can handle or anything else, and this is what is more important.

Your amp lists specs for 4 & 2 ohm speakers, but not 8 ohm. This does not mean you can't use your speakers, it does mean that your amp won't have as much power output as it would with the 4 or 2 ohm speakers. It seems your amp was designed more for 4 & 2 ohm speakers, but will still work with 8 ohms. The higher resistance lowers the power producing capability of your amp. For instance the specs on the Mtx TA7804 amp list 100 watts RMS for 4 speakers at 4 ohms each, so for 4 speakers at 8 ohms you will get 50 watts RMS instead, but if you have only 2 speakers at 8 ohms and bridge them you can get your 100 watts RMS. Now, you will also need to find out how many watts your speakers can handle so that you don't blow them if you decide to crank up your stereo to max.

The specs for your MTX T7500 Sledgehammer list it as having a 4 ohm (dual coil) impedance, not the 8 ohms you mentioned. It also can handle 400 watts RMS and 800 watts peak power handling.

Again power is what you should be concerned more about rather than the impedance.

Hope that explains it a little more for you. Best of luck.

I too agree with KaeZoo below. You might want to do more research on this subject &/or talk to someone who knows about this subject to better explain it more in-depth to you and allow you to ask questions to better understand it as it cannot be adequately covered in this forum.

Answer 2

It means that those are 8 ohm speakers. They measure 8 ohms of resistance.

Your amp can handle two of those, which makes it 4 ohms.

Answer 3

To be brutally honest, your understanding of car audio concepts is so limited that no answer we could give is likely to make sense to you. Speaker are rated in ohms; they don't "handle" ohms and amplifiers don't "push" ohms.

I'm not trying to put you down, but you need to educate yourself on car audio basics if you want to make good decisions about your system. Here's a good place to start: http://www.bcae1.com

Answer 4

it is 8 ohms rms or all the time and 4 ohms peak or max

Answer 5

4 ohms is what car adio filters home adio filters at 8 but if you run to subs in to it thay bouth will filter 4 ohms

Answer 6

I agree with Kaezoo.