Quote:
Originally Posted by _paralyzed_
I'm redoing the system in my van. I'll be running 50x4rms amp and a 1000x1rms(at 1 ohm) amp at .75 ohms, so I figure my rms wattage at about 1500.
Now, the mids and highs will be high passed at about 80hz so I doubt the 4 channel will pull anywhere near its rated power.
My question is: will my stock electronics take this or be able to dish it out?
I've got a 100amp alternator, thats only 1440 watts w/o efficiency losses or factoring in the vehicles electrical needs. Is it all about the battery? I have a v-8 and live in MN so I always get the biggest battery I can get (I beleive 900cca?) but have no idea what the continuous discharge would be. (I know it will only pull max current during bass peaks)
It's not worth doing if I have to add a battery, and also not worth doing if the vehicle cannot meet the systems electrical demands.
|
You gotta put in what you take out. If you are pulling 1000w, you gotta put in 1000w. If you are using a second or third battery, it just means you'll be able to run longer and the voltage dips will be lower, but the alternator will still have to put it back in.
However, I think you'll be fine. Music is dynamic, so you probably will only be pulling 300w average most of the time, with 1200w total peaks when bass hits, unless you like listening to bass sine-waves. Actually, music is logarithmic; to get twice as loud, you need 10X the power. Once you get to a certain point, the power required to get louder is just stupid.
Whatever you do, DO NOT skimp of the enclosure design. Get the Theille-Small parameters for the sub(s) you plan to use and select the right box type (ported vs sealed) and build it/have it built properly. Most speaker companies tend to advertise using smaller box than ideal. And some car shops will just throw the speaker into whatever they happen to have in stock and say that it's fine. Calculate it yourself for the best results. A box can make a crappy speaker sound decent, but also a great speaker sound crappy. Don't clip the amp, get the proper box, and you probably won't notice a difference between a $100 speaker and a $500 speaker. And you'd be surprised how little power you actually need for good sound when everything else is done right.
And about the caps: All they really do is help keep the lights from dimming on punchy bass. If you like bass CDs (long notes), then it will not help since they drain more quickly than the bass note is playing.