Audio Systems: what amp should i get with 2 dual subs in an enclosure, watts rms, impedance load


Question
I have jsut recently bough an enclosure system with two dual subs.  the peak watts are 1100 and i am in search of an smp right now and i really dont know what kind of watts in an amp im looking for for it to sound good, also would i need a cap too?

Answer
First off ignore max or peak power values. These are arbitrary numbers with no real value in the audio world. What peak power means is that's what the subs will handle for a split second before failure. This is why it's useless.

The RMS (Root Mean Square) watts is what to look at. The RMS watts are the continuous watts the system will handle. This along with the final impedance (ohms) the subs will load on to an amp are required to assist you further.

A capacitor is only good so far as the audio system isn't trying to pull too much from the electrical system. A cap doesn't provide more power, it's designed to 'stiffen' the voltage to the amp, nothing esle. If the current isn't there, a cap won't help.

So no, you don't NEED a cap.

If I'm thinking about the same enclosure you're describing, it's 600 watts RMS @ 4 ohm - http://www.sonicelectronix.com/item_10591_Dual+BP1204.html

The only thing that isn't clear about this system is final impedance load of both subs. Is it 4 ohm per terminal (the link I proveided states two terminals)? If so the combined final load would be 2 ohm, but this is a guess as I can't find any ACCURATE specs for this system.

Please correct me if I'm wrong.