help a complete newbie

[vtec guy]

Ok, I just got my first car, a 99 Civic SI, I was lucky to find one that i could afford. Its in great condition and looks almost new. Well im still in high school and money isnt that easy to get between school homework and sports. K well heres my question.... Im interested in getting some subs. From what i understand this should work but i wanna know for sure before i buy it. I wanna get 2 Kicker comp VRs, the 12s. There DVC and 4 ohms a coil. From what i understand u could wire them for 4 ohm to one channel. I can afford that. The part i need help with is the amp. I was looking at a black maxx BLX-2250. It says it can put out 1000 watts at 4 ohms. Will this work??? Also is it a good amp that will last if i turn the volume up? and if not what is a better amp?
Here are the links from where i found my info.
Please look and help me out, it would be greatly appreciated. If u have time u can talk to me on AIM at canthooplkeme.

Amp-http://www.caraudioexpert.com/productView3.asp?productID=3123
Subs-http://www.caraudioexpert.com/productView3.asp?productID=3535
and the wiring-http://www.justwoofers.com/


Any help at all with this system would be great, even if its just some pointers for questions i didnt even ask. Thanks alot

[hardhousenrg303]

as far as the amp brand goes, never heard of it but it should do the job. with that amp you will probably be pushing the amp with 250 watts per sub at 4 ohms. that's decent but it won't provide extremely loud bass if thats what you're looking for. get a good box too, basing on what most people have said, sealed is probably your best bet. I have heard bandpass boxes are too muffled and don't deliver great sound.

[hardhousenrg303]

oh and i just read the bottom of your post, do not bridge these subs. bridging is when you use a positive terminal from one channel and the negative terminal from the other channel. that is what the 1000w x 1 is talking about. That is for if you have a single sub that can handle 1000+ watts peak. with those subs you have chosen with 800 watts peak, you will either a) cause the amp to turn off due to trying to draw too much power from bridging two subs at once or b) blow a sub if you bridge one by itself.

[tibby01]

i just want to say, and i know some may not agree with me, but common terminology says that you bridge amps, and wire sub in either series or parallel. you CANNOT bridge subs.

bandpass boxes to sound muffled in cars. the need open area like in a suv to sound good. get a sealed box, it will ound good enough and save some space.

anyway, you got these two options...
http://www.rockfordfosgate.com/rftec...=28&image.y=19

you have to go the route which produces a 4ohm load on the amp, because it is not stable down to one ohm. this means that

1. you can wire it up so that each sub has its own channel. each sub will see 250W rms, and it will sound pretty good.

2. the amp is bridgeable. so you can bridge the channels, produce 1000W @ 4ohms(dont know if thats peak or rms, prolly peak), wire your subs up the same way as before to produce a 4ohm load, then hook up that 4 ohm load to the bridged channels. that number should be peak, so your subs will see the same amount of power as in the other option.

i think i got all that right, but its late so i coulda messed up.

[Geeko]

Originally Posted by tibby01

i just want to say, and i know some may not agree with me, but common terminology says that you bridge amps, and wire sub in either series or parallel. you CANNOT bridge subs.

not agree? there isn't really anything to agree with! from an electronics point of view, when you wire something like this (where |<| is a speaker)

pos. from amp ...... +|<|- ....... +|<|-.......... neg. from amp

you are wiring in a series.

pos. from amp......... +|<|-...........neg. from amp
\.....+|<|-......./

is parallel.

"bridging" an amp is just running both sides of the stereo amp in parallel. the main difference between a bridgable amp and an unbridgable amp is the coil that handles impedance balancing (normally wiring 2 amps in parallel would give you 1/2 of the orig. impedance, so with 1 4-ohm speaker on 2 amps, each amp would have a 2-ohm load)

[tibby01]

i know, but i got flak in another post for telling someone they were wrong to say "bridging" a sub.

[Geeko]

freaks! freaks all!

[GSteg]

That he is referring to me.

bridging is just that, building a bridge to connect from one end to the other. That is essentially what you're doing.

then again, people will never budge a bit and just stick to what they believe in only, not accepting scientific facts..