difference between voice coils

im actually gonna be running it at 1 ohm

It doesn't get any more technical than the fact that you will have more choices of final ohm impedances with any given number of subs...because of the variety of coil configurations.

• First, you determine how many subs you want to use.
• Then, you determine your goal:  SPL or SQ;  competition, neighborhood nuisance or daily driver.
• Choose the subs by brand and voice coil configuration.  Look at continuous power handling capability.  Use wiring help.
• Finally, you pick the amplifier that will let you reach your goals.  RMS power output into the final ohm load should not exceed the sub's ability to handle it.

You've already chosen the brand of subs and the amp and you know what impedance you want to use, because it's obvious your goal is to get maximum power and highest SPL.  As shown to you in the diagrams above, you would choose the subs with the DVC 4 ohm voice coils so that you can come up with a 1 ohm load on your amp.

Whereas...if your goal was to have decibel levels that are easier to listen to for daily driving, and less draw on the power supply of the car, you might choose the SVC 4 ohm models.  But then, you probably wouldn't choose subs capable of 1000 watts if this were the case, either.

While it's true there are some very slight electrical differences when you wire coils in series vs. parallel, this difference is not a reason for consideration when deciding what sub coil configuration to use.  Reason:  the total number of subs would have to change in order to achieve the same final impedance with the various coil configurations available for a given subwoofer.

That Memphis amp will produce 1000 watts into 1 ohm, so your subs will see 500 watts each.

thanks =)

500 watts each? im getting 1000 each of my audiobahn flame Q subwoofers, dual voice coils... must be wired differently im guessing? here's a pic.

[IMG]https://img.photobucket.com/albums/v303/choover567/DSC01170.jpg[/IMG]

sorry... forgot to click the enable button.

sorry if that sounded confusing, take a look

choover...you're not getting it...

A picture of wiring will not tell anyone how many watts those subs are getting.  Just think for a second...you're trying to say that an amplifier that will make 1000 watts will just miraculously produce 2000 watts because you have two speakers attached to it.

...it don't work like that.  Sorry for your disappointment.  But hey, you're normally listening to only 100 to 200 watts anyway.

its 1000 watts each... i mean... i can tell the difference between 500 and 1000 watts because i had a sub with about 600 watts before this, and these hit very hard. the amp is pushing out 1000 watts, not 2000... the ONE wire goes out from the amp, plugs into the first sub (just like the picture), then goes from that port to the second sub. how would that split 1000 watts into 500, the amp is still pushing out 1000.

Choover,

stop digging your hole deeper.  Stevedart is correct.  If your amp is putting out 1000 watts power (regardless whether your subs are wired in series or parallel), and you have two subs of the same ohm configuration, then each sub recieves half the power (500 watts). 

If you don't believe me, buy a watt meter.  (Yes, they do make them.)  Read the wattage at the amp first, then at each sub. 

Or, since power is a function of voltage and resistance (in our case impedence), you can use voltage.  Power = Voltage^2 / Resistance (Impedence).  Read the ac voltage at the amp.  Make sure you're using a high quality meter with true RMS voltage.  If your subs are wired in parallel, you'll notice the voltage is the same at the amp as it is at the woofers.  If they are in series, you'll note you get half the total voltage at each sub.

Now do the math.  Square the voltage reading and divide by the total impedence (1 ohm, 2, whatever) at the amplifier.  This will yield total output of the amp.

Now do this for each woofer individually.  If your subs are paralleled, the voltage will be the same at each sub, but the impedence will change.  If the impedence at the amp is one ohm, then both subs seperately would be two ohms.  Solving for the power at each sub will yield half total power, so add them together and you get 1000 watts.

If your subs are wired in series, then each will see half the total voltage.  Keep in mind, each sub would be half the total impedence.  So if we square half the total voltage, we'd only get one quarter (total voltage squared)- basic algebra.  If we divide this figure by half the total impedence, we automatically get half the total power- the numbers don't lie.  Now if we add these two figures together we get our total figure- 1000 watts.

Any way you look at it- each of your two subs sees half the total power assuming no voice coils are shorted or anything like that.

That was run-of-the-mill advice.  Here's some good advice: 

Are you happy with your system?  Do you like the sound?  Does it make you happy?  Is it loud?  Are your friends envious?  Do your neighbors know you're coming?

If any or all of the above is true, just tell your friends that those Audiobahns are putting out 1000 watts each and leave everything alone.  Only you and God will know the truth!

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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

geepherder, I could pass my MECP on just what I've learned from you!

And, of course, my answer didn't reflect on your post but just on mine.  Actually I didn't even see the edited addition to your post...I saw it at the point where it ended with (Yes, they do make them.)   I would have chosen different wording if I did...:)

But anyway, to the original poster:  Cheers, and enjoy your system.

choover567 wrote:

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suprised my subs havent blown, only 500 watts to a 1100 rms speaker.

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I don't mean to keep dragging this out, but I want to point out a misunderstanding you have here.  Just because a subwoofer (or any speaker) has a rating of RMS wattage, it doesn't mean that you have to fullfill that rating with real applied power.  Half of the RMS, or continuous power handling rating, is more than enough...and in SOME cases is just exactly what you should be giving them.  500 watts to those subs will make them perform as well as they can do.  1000 would more than likely destroy them.

Oh yeah....and to avoid any lying at all, just say "These subs are each 1000 watts and this Memphis amp puts out 1000 watts!"  Everything you said is true and you leave the number-crunching up to your audience.  Who knows, they might be thinking 3000 watts after you say that!

..............................................................................................................................

After I wrote this I saw your new post.  This thread is finished so it would be best to start another with your new line of questioning.  And, BTW, I will just finish this with saying that it would not be wise to add another 1000 watts.  You would be doing so only if none of the questions I asked you above were true...and if they aren't you should be considering some other improvements rather than adding more power.

Cheers, and this thread is dead.