AMP Trouble

[Shadow334]

ok i have a 200w amp and two 8" 400w subs. my friend told me to hook the -L to the -R wires together on the amp and the +L to the +R wires together on the amp. he said this will make them hit harder. well it did but if i leave it on for a whole song the amp goes into protected mode and shuts off. why is it doing this? do i need a bigger amp? thanks in advance.

[TurboJugend]

lol. i dont understand what you just said?

l and r

try + and -

[GoCougs]

That sounds a little stupid if you ask me. Is the amp 1 channel, 2 channel or 4 channel? The reason it keeps shutting off is because it is protecting itself from catching on fire.

[Shadow334]

here is an pic of how it is hooked up. i cant explaine it very well cause i dont really know what i am talking about. so sorry.

[aaronb]

what ohms are your subs? single voice coil or dual?
what amp do you have?

[///M5]

Generically speaking that could be a bad idea the way you have it.

[GoCougs]

I dont see why your would not have one sub wired to the right and the other sub wired to the left. I think you will toast your amp quickly with the way you have it set up. But im not an audio expert

[Shadow334]

I dont see why your would not have one sub wired to the right and the other sub wired to the left. I think you will toast your amp quickly with the way you have it set up. But im not an audio expert

most people around here do have it like this. i just done it to see how it sound and belive it or not it sounds great and hits hard. i done a few adjustments to my amp and got it all working now so thanks anyway.

[Marcos]

Yeah I am pretty sure you are just bridging it down to a lower ohm, be careful not to overheat the amp

[Shadow334]

yea i had that problem at first, the amp was getting really hot. i just adjusted some of the settings on the amp and it is all fine now.

[chevydudesixty9]

Thats not how you bridge an amp though... If its a 2 Channel amp then it should say which ones to bridge... Most of the time its Left Chaneel negative and Right Channel positive... Im almost sure your woofers are 4 Ohm woofers... Your pretty much giving that amp a 2 Ohm load in bridged mode which it cannot handle... Your going to kill the amp so I would just put it back to the way it was before or buy a biggger amp...

What amp is it? Brand and Model Number?

[///M5]

most people around here do have it like this. i just done it to see how it sound and belive it or not it sounds great and hits hard. i done a few adjustments to my amp and got it all working now so thanks anyway.

I didn't realize that Kentucky was so....


Really everything is VERY equipment dependent. The statement you made is ridiculous. Some amps are stable under lower than .5 ohm loads and some can barely stomach 4 ohms. Some bridge from different terminals as well, so generically what you did makes no sense at all. What you really need to do is tell us exactly what equipment you have; otherwise, most likely your amp will burn up and if you are unlucky it will take your truck with it.

[Marcos]

Very well said M5

[chevydudesixty9]

M5, Is there any 2 Channel Amps that are stable at 2Ohms Bridged?

[///M5]

Yes, not sure if there are too many new ones that are. The zx475ti that I have in my closet is a 4chn that is 2ohm stable bridged on both halves, but there are a ton of others.

The real question is why not buy a mono amp then? 2chn bridged = 1chn at 2ohm and pretty much all mono amps will do that.

[NvTwist]

A 2 channel amp that is 2ohm stable in stereo can not be bridged into a 2 ohm load, its causes the amp to see a 1ohm. (very bad) If you wanted to bridge the amp into a 2ohm load it would have to be 1ohm or lower in stereo. M5 has the right idea, if your looking at getting another amp for your subs get a 1 channel amp.

[///M5]

While that is usually true, some can as an example the ti series from PG. However, the amp doesn't see a 1 ohm load in the scenario you painted. It still can only see a 2 ohm load as that is what driver impedance you are connecting to it.