Re: 2600 watt amp + 15 " Kicker CVR question
It's okay. I'm 18 and I've been reading about car audio for like 2 years now. I still have stuff to learn.
A DMM is a digital multi meter. It calculates like running voltage, amperage, resistance, output voltage, etc. Basically if you want to run a system right, you'll probably need one sooner or later. They;re like $20 at walmart.
The amps that say "2000W RMS at 14.4V" will put out 2000 rms at the stock running voltage of a car. Ignition on, but engine off will yield a 12V reading. The alternator runs with the engine on and charges the battery at the same time. With your car on you will see 14.4V +/- .2V or so.
People modify their electrical with multiple alternators that are HO, or High Output alternators. For instance, my buddy has (2) 230amp alts. Along with a Missing Link Audio module which allows the electrical to run at like 15V. So when you see an amp that puts out 2kw at 14.4V, it'll put out more than that at 15V. But if you've got a 15v system without the amperage to keep it up from your alternators, you will see major voltage drop and power drop from your amp when it puts out that 2kw. So, that 2kw will be there for a moment, but then your voltage wil drop causing the power from your amp to drop and you will no longer see that 2kw.