Possibiility of frying an amp or blowing a sub?

Question

Hey Guys...This is my first SPL build. I bought a Kicker L5/L7 box for $50 and bought 2 08 L5s online installing them myself and hooking it up to 4 ohms...I am about 99.99% positive it is completely correct seeing that I checked the online diagrams about 10 time...I have + to - on the first sub then + to + (first sub to second sub) and - to - (first sub to second sub) as well as + to + and - to - from that second sub to the speaker positive and negative outputs on the side of the box...

If I did this wrong and hook it up to the amp (Alpine PDX-1.1000) (1180 RMS birthsheet) will it have a chance of frying the amp or blowing either sub or will it just not play??

And after I play it for about 6 months should I go in and check the speaker wire connections to make sure

Thanks this is long but really is important to me and spent a lot of time and money

Serious answers

Answer 1

If the subs are wired incorrectly you will very unlikely damage your amp right away.  However, long term use at an imdpedance too low for the amp can damage it.

If you are worried you wired the subs incorrectly then there is a couple things you can do.  First, use the link below to see a wiring guide.  Cructhfield's wiring guides are a little bit easier to see how to wire sometimes.  

If that didn't help then you can try testing your subs with a Digital Multimeter (DMM).  How you do this is wire all the subs up like you think they are suppose to be wired.  Then, instead of connecting it to the terminals on the amp connect it to the DMM.  Set the DMM to measure "ohms".  This should give you a rating that is somewhat close to the value you want.  So if you are wanting a final impedance of 4 ohms you may get a value of 3.2 ohm or something like that.  Basically, the rating will be close enought to know you wired your subs correctly.

http://www.crutchfield.com/learningcente...

Don't worry if the value is not exactly 4 ohms or whatever value you are trying to wire to.  When you measure this with a DMM you are actually measuring the resistance of the subs not the impedance.  You cannot measure the impedance so the value is not the same.  But, like I said before, the value will be close enough that you will know if it is correct or not.

If all else fails just bring it to a professional installer.  They will check it for you quickly and make sure you did it right.  They may charge you a little bit but at least you know it is correct.

Good Luck!!!

Answer 2

you won't blow your amp or subs unless you under or over power them. the only flaw to wiring wrong is that the fuses will burst, but new ones can be put in for 50 cents each. i have an amp that blows fuses like crazy because it is underpowering my MTX subwoofers. i used to have 20 sized fuses, but they burst every 5 minutes, so i upgraded to 30 sized fuses. i really don't recommend because the curcuitry of my car can burst and i will be sitting without a car. check your speaker wire, sub to amp wires, rca cables, guage wires to see if there are flaws every month. the checkup can be done by yourself and takes under 10 minutes.

if your subs don't play, then try hooking up the positive and negative wires in other inputs, to see if there is something wrong. if it doesn't play and the amp light is green, then the subs are messed up or there is no power going to them.