DVC - change RMS?

ok i have 2 power acoustik BM's 10's

• They are 4ohm DVC
• 800 watts power handling
• 400 Watts RMS

what i am wondering is that when i wire these subs so that they are each at 2 ohms. (i know how all that works) does the RMS of the sub change.  I am not sure if i can push 400 RMS into the sub if i for say wired it at 8 ohms, or if i wired it at 2 ohms.  i just want to be clear b4 i blow some shyt up.

The power handeling will not change regardless of the subs resistance. The only change in power will be the output of the amp based on the resistance it sees. What amp are you using?

Don't let the fact that they're DVC subs cloud the issue.  What if they were SVC subs, what would your reasoning be then?

Two subs each capable of 400 watts:  400

                                                                  800

Wire them series/parallel;  opposite of what you wrote above, because that is the preferred way to arrive at the total 4 ohm load you want.  The amplifier will output power into a 4 ohm bridged load and that power will be divided among the speakers.  See Woofer Wiring in the lefthand column for a diagram.

Stevedart, why would there be a difference when wiring series/parallel and parallel/series?  either way it will yield 4ohms with those subs.  4ohms is 4ohms is it not?  please correct me if i am wrong.

infoaudio01:  look at all the wiring diagrams available, including the ones listed on this site.  You will see that if there is a choice between the two configurations, that series/parallel will be the one shown.  So why isn't this shown both ways so you can pick and choose?

Because there is a slight difference.  When you link two speakers in series, the first speaker receiving signal will have a slightly higher level of input than the second speaker which is last to get it.  At the same time, when you link the two coils of one driver in series the same applies.  What is the priority, then?

Priority:  all woofers in a multi-driver arrangement have identical input/output.  By linking coils in series on each one first and the woofers are connected in parallel,  all of the drivers will receive the same input.  Each woofer is connected at the same time (parallel);  each woofer receives the same signal amplitude (level of power).  By this you will know that although the difference may not be noticeable in most installations, there is a difference in signal flow when going through a series course than there is when going parallel, which is spontaneous.  Also, most DVC subs are tested for parameters while series-wired, although this is not always the case (parameters are used when designing enclosures).

There are times when the opposite way of wiring (parallel/series) is necessary to achieve a final load result.  In those cases you will see this arrangement listed in the wiring diagrams.  There are also other times when it is more convenient for the installer  to do it this way when adding to an existing system.  But when you are doing all the initial planning, series/parallel should be the first choice in your design.

Here are a couple of references for you to look at:

http://www.bcae1.com/srsparll.htm