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There are builds just for flexing body panels, there are builds for numbers, and then there are builds for doing high scores on music. Which do you prefer and why? (This isn't a sq forum so I left that out.)

And with this, I don't have to say anything. He has now exposed himself to all who care to come here and view it. Without further ado:<br><br>[attachment=200:AholicPMReply.png][attachment=201:aholeic.JPG]<div><br></div><div><br></div><div><br></div><div>It's important to understand... there is a rule there where you cannot change your name more often than once every 30 days. It's built into the system. It just won't let you. If he did not want to ban me, he would have said, "you need to change your name. Tell me what you want it to be and I'll change it for you" or something along those lines. Instead he just immediately banned me as soon as he saw activity. I'm not sure if he got that pm I sent him or not. I no sooner typed that reply and hit submit than it told me I was banned. I honestly don't know if he waited to receive it or not. It was instant. You guys can cover his nuts or whatever but it's obvious what the guy did. He really got butthurt when he saw my sig, quoting him calling me names like "lying asshole" etc. He knew I was exposing him for what he was, so he knew he had to ban me. What he didn't count on, was me then drawing people to my site where he can't suppress it. I know you guys aren't here because you like the forum. You're here because I wanted you here.... to see this.</div>

Nobody can remove this thread... so if you don't feel like being a vajine and mourning a crackhead... poast

this forum gets lots of views every day.... i mean a LOT. Nobody posts or joins because they see how dead it is..... so post some shit. I can't do it alone. Everyone bitches about the other forums. You have a better one with no rules right here and you refuse to post in it. I don't give a fuck about how you "don't want to talk to yourself" etc. If you'd fucking post more, you wouldn't be talking to yourself. Quit being a bitch, and fucking take some action you lazy bitches.

Gain Setting Tutorial

The gain knob is just to turn up until you can't stand it anymore right? Then why after you turn it up so much does the sound stop getting louder and actually starts to sound worse with less intensity than before?
It's because the gain is not for that purpose at all.

Head units all have different output voltages. Some might be less than a volt while others might be 4 volts or in rare cases 8 volts. Couple that with an eq with a different voltage or a line driver and you have an unpredictable situation.

Let's say you have a 500 watt amp. Let's say your subs wire to a final 4 ohm impedence. This means that you must achieve 44.7 volts coming out of your amplifier to make that 500 watts because of the subs' impedence. (Just take my word for it. I've written you a tool to figure that out and I'll give it to you later on.)
Let's say you have a head unit that has 4 volt preouts. (It's not always putting out 4v but we'll talk about that in another thread.) To make the 44.7 volts, it has to multiply 4 x 11.175. (The amplifier is doing this, although it's not nearly this simple... but it's very easy to wrap your brain around the fact that the amplifier is nothing more than a signal multiplier.)

If you attempt to make your 500 watt amplifier put out more than 500 watts, you will cause the amplifier to clip. This can easily destroy your amplifier and/or possibly your subs. It's tempting to eek out a little more volume, but it's not worth it. You MUST double your wattage to get a +3db gain in volume. This means that if you were to get an extra 100 watts out of your amp, it wouldn't make a lick of difference. It would barely be audible and you risk ruining your expensive equipment.

All in all the gain is there to MATCH the amount of amplification it provides to the head unit. It is effectively matching it's own inputs to the outputs of the head unit. This is why the higher numbers on the amplifier turn it down. The lower numbers turn it up. Those are asking you what the output voltage of your preouts are. You are to match the value of them with your amp and it will put out it's full potential.

To set your gain the proper way, you need an oscilloscope. You set it to look for the frequency and voltage of your source. Then you can see the sine wave on the screen and you adjust the gain until the wave is only slightly flat on top. When the wave goes flat you have maxed out your amplifier's potential. This is called "clipping".

Since hardly anyone has an oscilloscope, we try to get semi-close with a volt meter. This is by no means extremely accurate, but it's better than "turn the knob until you see smoke and then back it off a quarter turn."
First you calculate at what voltage your amplifier is putting out full power at the impedence of the subwoofers. The formula for this is to divide the RMS wattage of the amplifier by the impedence of the subs and then take the square root of that. This will give you the voltage you need to shoot for. Being off by even the tiniest of increments can make a big difference in output, so try to be as close as possible. <br>


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Now that you have the voltage you need to shoot for, go unhook your subwoofers and stick the leads of your meter in the + and - terminals. It doesn't matter if you stick + in the - jack. It's AC. Now, play your 50hz test tone. Make sure it's at 0db and not -3 or +3db. This will really defeat the whole purpose of this. Turn all equalization options off. Turn your head unit up 3/4 of the way. Then adjust your gain until the meter reads the voltage you calculated earlier. Now, turn everything off, especially your car and amplifier and hook your subwoofers back up.






There are many factors that make it impossible to set your gain perfectly. These factors are heat causing your voice coils to get hot and thus the impedence rises. Box impedence rise. Different frequencies your sub plays change it's impedence, etc. There is no perfect scenario, but we can get it pretty close this way.