DVC sub Question

[SPUMONI_RT]

Move if needed I wasn't sure what topic to put this under.
On a DVC sub that is 250RMS and 500W max, is that on both coils/ channels or is it that total. The sub has two + - connections on each side of course and on each side it says 250 RMS and 500 Max.
so is it 250w each side or the whole sub is 250w?
Sorry if this is a dumb question.
15" Rockford Fosgate Punch Stage 2, dual 4 ohm

[Legacy777]

For that size sub, it's probably 250w for each side.

[magicmike]

Since the voice coils are always wired together they rate the sub as a whole i.e. both voice coils. You will notice that dvc subs have slightly higher ratings than svc's.

What people don't understand is that too little power and whats called "amplifier clipping" is what blows up subs.

Oh, and one other thing, why would you want 1 15" sub? if all you listen to is rap then no need to reply but if you listen to anything which requires some tight bass response I could offer some suggestions as alternatives.

[SPUMONI_RT]

No I prefer Death Metal and other metal. But once in a blue moon I bang some 3 6 Mafia.

Yes a 15" is large for kick drums. There is two reasons when I was fifteen I bought two 15"s Because I was young and had no idea what I needed. I just wanted a big system. So I already have the 15" box.

Also I have other options. 12" Alpine type X with nothing to run it. Audiobahn 10" 400RMS

But the other reason is I run a eclipse 3650 to 6 speakers in the car. two of which are custom mounted 6x9s so i have mid bass.

[kimokalihi]

Since the voice coils are always wired together they rate the sub as a whole i.e. both voice coils. You will notice that dvc subs have slightly higher ratings than svc's.

What people don't understand is that too little power and whats called "amplifier clipping" is what blows up subs.

Oh, and one other thing, why would you want 1 15" sub? if all you listen to is rap then no need to reply but if you listen to anything which requires some tight bass response I could offer some suggestions as alternatives.

Hold on right there! Don't mean to be rude but that is entirely NOT true. That is a horrible myth in car audio. Do not buy that. Too little power will never blow a speaker, that's just ludicrous. I don't know how that got started but car audio was my biggest hobby and I spent the better part of the last few years of my life on diymobileaudio forums and ECA before it died. I learned a ton on these forums and I even ran a single 15" DVC Image Dynamics sub off only 110watts RMS @ 2ohms (forget "max"/"peak" power ratings BTW, that's all BS marketing) for about a year with no problems and it was rated at 650 watts RMS @ 2 ohms. That thing pounded too. I wasn't into loud bass though so I didn't go around blasting it but sometimes you get in that mood and listen to some of that rap music.

Anyways, never be afraid to put too little power into something. The worst that will happen is you won't get the performance you're looking for. Be careful with those max power and peak power specs. Those are the max power it can handle for like 1/100th of a second in a lab with perfect conditions or something. It's stupid and only there because shitty companies like Sony Xplod want to sell "1000Watt" amplifiers that are only really rated at 200watts. or less.

That sub you're talking about is rated for both coils combined. Wouldn't make any sense for them to advertise only half the power it can handle or the power one VC can handle. That would be like a car manufacturer only advertising the power that one cylinder of their engine puts out.

The punch line of Rockford Fosgate is the lower line. Not the best products out there to say the least. The power line is the better line just so you know. I know rockford used to make great stuff, I used to have an older rockford power amp I think it was like the 551 or something like that. It was an awesome amp. I may still have it actually, put out great power. I think they got too into marketing and selling cheap products that looked cool to teenagers and strayed away from making solid quality products like they did in the past. Typical.

All I can say is do not feed that sub 500watts of power or you will fry your voice coil eventually. I did that one time on a crappy MTX sub back when I was first getting into car audio. It lasted for months before it went but it did eventually burn the coil up and siezed to live.

Read everything on this site and you will be succeed in car audio safely. This site here is amazing and this guy knows his stuff.

http://www.bcae1.com/

Scroll down the sidebar to #29 Too Little Power and read everything it says about the myth of too little power blowing speakers.

Here's the first two paragraphs.

Too Little Power:
As you have probably heard, some people say that too little power can blow speakers. Well... How can I say this... BULL S***

Too little power will only cause the maximum output level to be low. Abuse and the defective 'wing nut' (an idiot) connected to the volume control blow speakers with low powered amplifiers. If driving a speaker with low power would cause them to fail, speakers would fail every time you lower the volume on the head unit. I will try to explain what happens when speakers are driven with clipped signals but remember... you get what you pay for.

[magicmike]

ok so answer me this:

If you take that 15"dvc sub and hook it up to your spark and static 50 watt amp and crank up that gain to the max because its just not seeming to push that sub as good and hard as you would like, do you think that you are going to hear the amplifer clipping? Chances are, probably not, after all, you are trying to drive a 15" dvc sub off of 50 watts. So to be specific, no its not the too little power but the fact that the amp is running to the balls out max and clipping the ever living shit out of the signal trying to drive that sub. THAT is what is causing the clipping and what will cause the sub to blow up. JESUS christ, this is why we car audio snobs just say that "too little power blows up subs" because its easier to say to the lamen then this long drawn out explaination...

Heres a link on clipping, read up on that: http://en.wikipedia.org/wiki/Clipping_(audio)

[Legacy777]

Mike is correct.

[kimokalihi]

I missunderstood you. I think I just saw the "too little power" part and missed the part about clipping. I apologize.

[magicmike]

I missunderstood you. I think I just saw the "too little power" part and missed the part about clipping. I apologize.

Thank you for the apology. However, I would kindly suggest reading someones post entirely before calling them a flat out liar. I have to say I was pretty pissed off and I don't typically get too peeved on this whole interweb thingy.

[kimokalihi]

Rightly so. I would be annoyed too. But I wasn't really calling you a liar either, I was just saying that too little power can blow speakers is a myth, or maybe it's better to say that it's just misleading. It's not too little power that actually blows the speakers.

Even to someone who thought that too little power would actually be damaging to a speaker in and of itself, I wouldn't call a liar. I would just say they've been misinformed.

Lieing is something I hate and people who lie I hate. I wouldn't call someone a liar unless they were.

Sorry, I came off like that.