Trying my hand at understanding this. JL Audio 12W6V2 sub - Dual 4 ohm JL Audio HP900/5 - 500 RMS x 1 @ 1.5-4 ohm If I run 2 of these subs parallel/parallel they would be run at 2 ohm If I run 2 of these subs series/parallel they would be run at 1 ohm In either configuration, would I still be able to get the 500 RMS power to the sub. Also, as I understand it, running 1 ohm (series/parallel) would be better because it puts less strain on the amp. Am I completely off here? Thanks
parallel - parallel with dual 4 ohm coil subs (2) should be 1 ohm, becuase your making each sub 2 ohms, than yuour puting them in parallel, whitch once again devides the resissatance, whitch gives you 1 ohm. again this all seems quite useless seeing as the 12W6V2 is rated at 600 watts rms alone with a peak of 1200. if your going JL you're not in it for thump, don't waste your money on 2 subs like these unless your really putting all the power they can handle to use. these subs are for SQ > DB, but from what I've read, with a good amp (like one your looking at) with that sub, will sitll pack quite a punch in the croch. but no your math is wrong, the answer is series \ parallel = (4+4) (4+4) \2 = 4 ohms at amp parallell \ parallel = (4-2) (4-2) \2 = 1 ohm at amp
you would suggest just using one sub then? Also, if i were to use 2 subs, how much power would I put to the sub in each of those configurations?
are you asking what the amp you chose would send them? they would share the power coming from the amp evenly.
well, esencialy the way to think about dual subs is, your just creating one big sub, at least as far as the math, generally there is a gap between the peak wattage and the rms rating. you can run an sub at something higher than the rating suggested, most people do. it's hard to match them up, but when your taking 2 600 watt rms subs, thats equiv to rating of a single 1200 rated sub, so if you have 1500 rms, and each sub is 600 rms rating, and the peak of each is 1000 per sub, your still with in range, and can put those 1500 watts rms into that sub. because your creating a circuit that can handle up to 2000 watts, there are dif ways to wire it, i'm not to sure on 2 channel amps, but a single channel will act this way, if you wire a 2 channel up for 2 sep subs, your really talking about 2 dif lines, it's different, each sub must be able to handle the power coming out of each line. or if you take a 2 channel sub, and bridge the channels, you're usily only going to be stable around 4 ohms, so your following the same laws of the single chanel at that point, but your lowest alowable resstance now will be 4 ohms. each amp varries, there may very well be a bridgable 2 channel amp that cna run at 1 ohm bridges, i havn't seen one, but i'm sure theres somebody out there who made one. what dual coil subs alow you to do is create different ratings, such as 1 ohm, or .5 ohms, or 8 ohms if your wiring 4 subs together you'll want larger resistances to avoid ending up with .1 ohm at the amp and blowing it, very few can handle less than 1 ohm. so if you were doing this, you'd take the 4 single coil 8 ohm subs, wire them in parallel and you'd end up with a reduced resissatance at the amp, but now so low that the sub just blows. this is all my understanding of what i've learned, from reading around and talking to people, it might not all be completely 100% right, but this is how i think about it, so don't come to me when you blow something up
