Audio Systems: my system, rms voltage, vented boxes


Question
A long one...I have 4 (DVC) power acoustik FUBR-12 subs that RMS at 700, 1800 max. I have a massive P1500.1 monoblock amp with RMS of 1500, 3000 max. Im saving to buy a SUV to put the system in but just wanted to make sure this system will work. Is the amp strong enough to push all 4 subs? If so, what is the best way to wire them up? I will have them in 2 seperate dual vented boxes.

Answer
First, ignore the max ratings - they don't really mean anything.
Secondly, there is no such thing as rms power.  Everybody uses it and manufacturers have improperly listed it on their spec sheets.  But, rms voltage times rms current does not give rms power; it gives average power.  What they really mean is continuous average power.

Connecting your speakers to the amp is all about impedance.  You must never load down the amplifier with a lower impedance than it is rated for or you will endanger the amplifier - quickly.

So, the thing you must do is configure the voice coil wiring so the combined impedance is not below the output specification of your amplifier.

Refer to these diagrams to find the one that works for your amp and speakers:

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

Best wishes,
C
PS: Be sure you have plenty of dc power getting to the amp from your vehicle's battery system.