Is anyone in the Supp Misc knowledgeable in car audio?

[Methadrol]

Does anyone know a lot about amps and sub woofers for cars? I've been browsing around the caraudio.com forums but I'd appreciate any help I could get.


The amp i'm looking at says its rated at:

1000 x 1 @ 1 ohm

and my subs are rated at:

400 RMS

If I run 2 subs parallel that would equal 800RMS right? If I use that amp rated at 1000, wouldn't i overpower them?

[MrOneEyedBoh]

This may explain it better than I could in less words

http://www.termpro.com/articles/spkrz.html

[user98511001541]

Does anyone know a lot about amps and sub woofers for cars? I've been browsing around the caraudio.com forums but I'd appreciate any help I could get.


The amp i'm looking at says its rated at:

1000 x 1 @ 1 ohm

and my subs are rated at:

400 RMS

If I run 2 subs parallel that would equal 800RMS right? If I use that amp rated at 1000, wouldn't i overpower them?

that is 1000watts at 1 channel (1 speaker)

the amp is most likely 500x2channels, although its not always the same thing

if your subs are 400 watts RMS, they will peak really high, which would short your amp... so be careful

[Talawandaballa]

Does anyone know a lot about amps and sub woofers for cars? I've been browsing around the caraudio.com forums but I'd appreciate any help I could get.


The amp i'm looking at says its rated at:

1000 x 1 @ 1 ohm

and my subs are rated at:

400 RMS

If I run 2 subs parallel that would equal 800RMS right? If I use that amp rated at 1000, wouldn't i overpower them?

It wouldn't over power them. You just need to bridge your subs together and imput them into the 1 ohm. It also depends on the ohm rating of your subs.

[MrOneEyedBoh]

We dont know if his amp is bridgeable yet. I was thinking that, but gotta get the specz on it.

[Outside backer]

running ur amp at 1 ohm will shorten the life of that sucker in heart beat just because its rated doesnt mean ****

plus its not what ur subs are rated it its the ohn of the sub

if u have 2 4ohm subs wired in parallel you got 2 ohms

the lower the ohn the more power and heat ur amp will produce which will ofcourse lead to overheated decresed life etc

your amp will not over power them because u adjust the gain of the amp with the gain of the stereo etc.

only 16 yr olds max the gain on thier amp to have thier system sound like ****

yes I used to compete and yes I went to school for MECP certification

but that was almost 10 yrs ago lol

i used to run a phoenix gold m50 50x2 at 1 ohm mono into 3 Jl 10w3 d4s putting out about 500 rms to each lol that amp lasted a few months til it fried

i miss the good ole days

[XCriticalBenchX]

Depends on the brand you are using also. My old amp was rated more powerful than my current one, but my current one pounds a hell of a lot harder in a 2-ohm setup with my gains very low.

[timdull2]

running ur amp at 1 ohm will shorten the life of that sucker in heart beat just because its rated doesnt mean ****

plus its not what ur subs are rated it its the ohn of the sub

if u have 2 4ohm subs wired in parallel you got 2 ohms

the lower the ohn the more power and heat ur amp will produce which will ofcourse lead to overheated decresed life etc

your amp will not over power them because u adjust the gain of the amp with the gain of the stereo etc.

only 16 yr olds max the gain on thier amp to have thier system sound like ****

yes I used to compete and yes I went to school for MECP certification

but that was almost 10 yrs ago lol

i used to run a phoenix gold m50 50x2 at 1 ohm mono into 3 Jl 10w3 d4s putting out about 500 rms to each lol that amp lasted a few months til it fried

i miss the good ole days

Joe da mang!!! Good explanation. Tinkered with this stuff in college a bit, but most I ever ran was a Kicker Solo Gen D. Not too bad in a 95 Taurus.

[giantbrandon]

so your amp is 1000w at 1 ohm is it a 2 channel or single channel, firstly

is the amp rated 1000w rms or max power

the way they measure amps go by what load is place on them so at 1 ohm load this amp is 1000w at 2 ohms it might be 500w at 4ohms 250 , so you need to find out what your amp runs stable at

with speakers and amps they run at what load is placed on it so if you hook up a 4 ohm sub to the amp it will run at 4 ohms , if you hook up 2 4 ohm subs in a series you get 8 ohms load on the amp, but if you hook them up in parallel you get 2 ohms

[giantbrandon]

what ohms are your subs

[IForceNutrition]

what ohms are your subs

This.


If your subwoofers are single voice coil 2ohm, you would wire them in parallel to reduce total ohm load to 1ohm, thus allowing your amplifier to work to it's potential.

If they are dual voice coil 4 ohm, again parallel would work, however each subwoofer would be wired in parallel(to itself) as well as within the circuit.


Is your amp 1000w RMS or peak?

[little lats]

most of the advice on here is pretty correct.. Most likely your subs are 8 ohms and you'll be at 4 ohms. Amp wattage is like sup companies "marketing". Just because you might have 1000 of total power doesn't mean it's going to be clean and effective. When you run speakers together it doesn' mean you double he RMS of the speakers, the speaker themselves still only handle 400 watts. Even if your amp is say 750 watts at 4 ohms you are good. As you want more power then your speakers can handle. Then your using the amps at a more realistic level and won't get as much distortion. I run my amps at 3/4 power.

also if I prefer running my bass amps mono as you can raise the slew rate of the amp. Which if you listen to rock it's important to have a high slew rate. (snappy). If you listen to rap or hip hop then it sounds like crap and it doesn't matter anyhow.

[Beejis60]

Does anyone know a lot about amps and sub woofers for cars? I've been browsing around the caraudio.com forums but I'd appreciate any help I could get.


The amp i'm looking at says its rated at:

1000 x 1 @ 1 ohm

and my subs are rated at:

400 RMS

If I run 2 subs parallel that would equal 800RMS right? If I use that amp rated at 1000, wouldn't i overpower them?

1. What brand amp is it? Some of the dogshyt companies rate their stuff differently and don't actually have 1000 true watts.
2. What brand subs do you have?
3. What's the impedance of said subs?

I used to run two 2 ohm subs that had 500W RMS on a 1 ohm 1500Wx1 amp.
How they were wired was a secret

[little lats]

1. What brand amp is it? Some of the dogshyt companies rate their stuff differently and don't actually have 1000 true watts.
2. What brand subs do you have?
3. What's the impedance of said subs?

I used to run two 2 ohm subs that had 500W RMS on a 1 ohm 1500Wx1 amp.
How they were wired was a secret

I wonder if anyone wires in series anymore. lol

[IForceNutrition]

I wonder if anyone wires in series anymore. lol

SQ systems are almost always wired in series. SPL = parallel usually

[little lats]

SQ systems are almost always wired in series. SPL = parallel usually

I think beejis lasted one post again. oh my.

[giantbrandon]

SQ systems are almost always wired in series. SPL = parallel usually

yeah parallel wired subs get a little loose and lack control over the subs movments which effects the quality of your sound

[IForceNutrition]

yeah parallel wired subs get a little loose and lack control over the subs movments which effects the quality of your sound

thats really only due to the increased power though, which in turn creates a higher level of THD(total harmonic distortion). Less ohms = more power/higher THD, more ohms = less power/lower THD

[little lats]

thats really only due to the increased power though, which in turn creates a higher level of THD(total harmonic distortion). Less ohms = more power/higher THD, more ohms = less power/lower THD

I always keep things at 4 or 8. Just much safer on the equipment. My car days are over though. too old. lol

[giantbrandon]

thats really only due to the increased power though, which in turn creates a higher level of THD(total harmonic distortion). Less ohms = more power/higher THD, more ohms = less power/lower THD

which is another resason you end up killing your subs lol

Pulling it together
"And note that the amp in systems incorporating low-impedance loads tends to lose its ability to control or "dampen" unwanted speaker-cone movement. The result is bass that's "muddy" or distorted."

http://www.termpro.com/articles/spkrz.html

I always keep things at 4 or 8. Just much safer on the equipment. My car days are over though. too old. lol

4 ohms is more car audio where alot of house stuff is 8