Crossover Questions

TAshifter88

Junior Member
Ok, so I have a new system setup in my truck. I have 2 Hifonics 15" woofers in the back powered by a Kicker x15000.1 through series. ATM, I'm not really expecting great success out of it, because my truck's up for sell, but I really just wanted to build a box ASAP for it that was large enough, sealed, and would be cheap just so I can hear what the system sounds like. Needless to say, I never worried about anything too detailed like porting the box or carpeting it, and most importantly, I never bothered getting very strong wires, and just stuck w/ some Monster 1200w max wires. Can't even remember quite what gauge they were.. probalby like 8-12 anyway, and it's feeding through half of that because all my connections were really small. I don't care about any of this yet though, because, I'll worry about buying bigger speaker wire and larger connections and a perfect box for my next vehicle and it's hatch.

But I'll steer myself back onto topic now that everyone knows my situation. These 2 15's hit pretty hard regardless of the small wires that it's going through, however I still get insane amounts of bass carried off into frequencies corresponding with minor things like vocals. Ya, i feel kinda beastly when someone singing w/ no background music makes the truck rattle, but it just gets plain annoying in songs. I'm not too informed on system tuning yet, however from what i've snooped around in, I'm guess it's because I'm feeding too high a frequency to the woofers. The only problem I have with this is, the ampilifier only goes down to 50hz, and at that low of a frequency, vocals are still hit. Leading me to the assumption that.. I'm going to have to buy a crossover if I want any hope of having a system that doesn't hit on a pin-drop and just be a constant hum throughout the song w/ occasional drops/peaks. I was wondering if this is the right approach, and more importantly, if it is, what would be the best route to go as far as buying a crossover would be? Such as, what should I look for in them, what brand, and about how much money are we talking about here? The amplifier pushes 1500watts RMS, and the woofers handle 700watts RMS @ a 1400 watt peak, so there's a few specs if needed. Thanks for the help everyone!!

Oh, and just for a quick side-question, I'm guessing w/ this kind of power being ran through my system, and having the power needed all the way in the back of a hatch ('89 GTA ***** Am), I'm guessing that the best approach would be some 2 gauge wire, just from what i've seen on some chart awhile back. then I've heard some people say 2 gauge is a bit much, and just stick w/ 4 gauge anyways because it's going to be such a small difference in output, and SOO much easier to install things w/ smaller wire. What would you all suggest, or what brand if possible as well? Thanks again!

 
you might need a new amp if it can only play down to 50 hz....get something that will play down to 30hz or lower cause ur not gettin the lows...and set your lpf to about 80, give or take

 
I was afraid that might've been the case :x Is there any other solution though, because I just recently bought the amp and it sounds like quite a bit of work having to sell it then get another. I can try seeing if they'll accept it back, but no promises yet. I'd just prefer another way if at all possible. Thanks for the quick response.

 
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TAshifter88

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