Amp getting overpowered?

[808BMW]

would it be fine if i just isntalled some fans to cool down the amp?

It might keep your amp from going into protect (for a while) but if your amp isn't designed to be played at 2 ohms, then you will blow the amp (or at least the sub channel) eventually.

Your amp might actually be able to handle 2 ohms and those specs just don't say so, but I would check first (call up alpine).

[325is_MadBimmer]

Your sub looks like it's hooked up in series. You should have the speaker wire going from the amp into one voice coil, and then that voice coil should be in parallel with the other vc in the sub.

Do the Type-Rs really have the negative terminals of both vc's on one side of the sub and then both positives on the other side?

Ok let me go rewire it and i'll take another picture to varify

[KenC]

Your sub looks like it's hooked up in series. You should have the speaker wire going from the amp into one voice coil, and then that voice coil should be in parallel with the other vc in the sub.

Do the Type-Rs really have the negative terminals of both vc's on one side of the sub and then both positives on the other side?

Ok let me go rewire it and i'll take another picture to varify

Well if both negatives are on one side and both positives are on the other, you have it hooked up wrong. You want both negatives hooked together and then both positives hooked together. Then take the positive lead from the amp and hook it to one of the positive terminals, then take the negative lead from the amp and hook it to the corresponding negative lead on the sub. You should then be producing a 2ohm load to your amp. I highly doubt that a V12 Alpine amp wouldn't be able to drive a 2ohm load on the sub channel of the amp. I'd suggest getting a fan to blow down the heatsink.

[325is_MadBimmer]

Your sub looks like it's hooked up in series. You should have the speaker wire going from the amp into one voice coil, and then that voice coil should be in parallel with the other vc in the sub.

Do the Type-Rs really have the negative terminals of both vc's on one side of the sub and then both positives on the other side?

Ok let me go rewire it and i'll take another picture to varify

Well if both negatives are on one side and both positives are on the other, you have it hooked up wrong. You want both negatives hooked together and then both positives hooked together. Then take the positive lead from the amp and hook it to one of the positive terminals, then take the negative lead from the amp and hook it to the corresponding negative lead on the sub. You should then be producing a 2ohm load to your amp. I highly doubt that a V12 Alpine amp wouldn't be able to drive a 2ohm load on the sub channel of the amp. I'd suggest getting a fan to blow down the heatsink.

that was my mistake. A positive and a negative is on each side. I have the sub parallell wired. I called alpine talked to him about it and he said if i am going to be running that sub of that amp, i should get another one, because then it would be fine. But now i am running an 8 ohm on a 4 ohm.

he said that, the parallell way i have it hooked up is the best bet for me because i can not wire that sub a correct way. The only way for me to fix the problem would be to get another one of those subs.

he aid if i cool the amp down, it will be running hot, but it should not burn the channel

ok so now i am going to buy some pc or just some 12v dc fans to cool my amp down

[Jordan]

Fans are so ghetto man.. just sell the sub, and buy another one. They are cheap enough.

Like I said earlier, you shouldn't have done your own work because you don't know what you are doing.

[KenC]

Fans are so ghetto man..

A 12V PC fan would be pretty ghetto, but Stinger actually makes some pretty badass (and nice looking to boot) cross-flow fans. They're expensive though. People usually use them for 'bling-bling' systems when they have they're amps mounted under plexi-glass where there isn't enough room for heat dissipation.

just sell the sub, and buy another one.

I'd also recommend getting a dual 2ohm sub and wiring the VCs in series and putting a 4 ohm load to that sub channel.

[325is_MadBimmer]

Fans are so ghetto man.. just sell the sub, and buy another one. They are cheap enough.

Like I said earlier, you shouldn't have done your own work because you don't know what you are doing.

like i also said, i bought the amp/sub combo from a good guy on euroteknik, so i thought there would be no problem running the two together.

I am thinking about getting another same sub. Alpine guy said i could run them then witout overheating....how does that work?

i cant run one 4+4 ohm, but i can run two 4+4 ohm ones.

[DSchultz325e]

if you just wanted to get the amp temps down you could always just mount it vertically...but even then it's still too low of an impedance for that amp it seems. buy phoenix gold or JL audio :) i used to have the PG drive my JLs with 2 ohm mono load in 110 degree weather and it never ever shut off.

[808BMW]

[

I am thinking about getting another same sub. Alpine guy said i could run them then witout overheating....how does that work?

i cant run one 4+4 ohm, but i can run two 4+4 ohm ones.

Simply: Series will double your resistance, parallel with half it.(Not exactly correct, but it works for this illustration)
dual 4 in series: 4 + 4 = 8 ohms
Dual 4 in parallel: 4 / 2 = 2 ohms

2 seperate dual 4 subs. each sub is wired series (8ohm sub and 8 ohm sub). Then the 2 subs are connected parallel to the amp: 8ohm / 2 = 4ohm... perfect.

http://www.jlaudio.com/tutorials/wiring/index.html

[StereoInstaller1]

I never saw a pic of the ground. I have run that amp for hours and hours on a 2 ohm sub load, never once did it show any sign of duress.

Ground that sucker to the floor of your car, use a nut and bolt, but most importantly...GRIND THE GROUNDPOINT CLEAN!!!!
Paint nor galvanization does an adequate job of transferring electricity to your amp.
HTH,
Luke

[325is_MadBimmer]

I have now had 3 cooling fans installed and no overheating. They might be "ghetto", but they work and they were a simple and cheap solution to my problem.

[trent]

Can't really see in the pictures, but is it wired series?

If it's wired series, it would be 8 ohm, and I would probably say that gains are too high (trying to turn up the quiet woofer).

Either way, parallel or series, it's probably a bad idea for a single sub setup off that amp.

your dual 4 ohm can be wired to either 8 ohm or 2 ohm, a dual 2 ohm could be wired in series for a 4 ohm load.

Your amp has no specs for a 2 ohm load, so I'm guessing it's not designed to be run at 2 ohms.

My suggestion would be to try and trade your dual 4 type R for a dual 2 type r (or something better).

Ok ic. i'll see if i can trade the sub, but i would like to keep this one because if i were to change subs, i would get two 8's

would it be fine if i just isntalled some fans to cool down the amp?

Do it right, and buy a monoblock amp for your sub. You will be a pimp hero then.

[PeaveyBassist]

To "Do it Right" Doesnt nessescarily mean to buy a dedicated amp for your sub. You can use whatever amp works with your sub well. As long as it has the power and a low pass xover on it. I use a 5ch. Thats what 5 channel amps were made for... the 5th channel is MADE to use on a sub. And the other 4 channels on other speakers. I use my 5channel and it works just fine. Another thing to consider if the amp also does it right when powered up. It could be low voltage protect. Thats what I thought at first because you said at high volumes or techno when the bass is fast and loud. Try getting a better ground and the fan thing. Fans arent nessescarily "ghetto". If they are quiet and you cant hear them with the fans on and the volume on the radio all the way down, its fine. As long as it isnt ghetto wired ;)

Will