Article: This is crucial to achieve perfect precision with 4, 6, and 8 or more sub woofers.  An amp that is rated at 1000w RMS (Root Mean Square, or the average watt the speaker is intended to receive and play with) set for 1 ohm can power two 2-ohm subs rated at 500w RMS. That same amp can power four 4ohm subs and so forth. But the more subs an amp is placed on, the less power it can give to each individual sub. This is not necessarily a bad thing if you have a 2000w RMS amp and two 600w RMS subs. In fact, you always want the power from the amp to be slightly higher than what the sub(s) requires; a 1000w amp will work well with a 7 or 800W RMS sub. Just make sure that the sub's peak power is rated above 1000w. If rated under, make sure your amp's level is not too high as you can damage the sub. If you have a really powerful amp that's 3000w RMS or higher, then you can really power multiple subs at once without any problem. Just make sure the subs don’t combine to read at 0.5 ohm (a dangerous level for an amp, unless it specifies that it can run at that low ohm level) and all your wires are properly connected and wired. However, depending on whether you wish to connect them in series or parallel or bridge the amp, you may only use two terminals. Refer to your amp's diagram for more specifics.
Question: What is a summary of what this article is about?
Know your amps' and sub woofers' limits. Connect all subs to the same terminals in the amp.

Problem: Article: Even if you're shy, try to strike up a conversation when you see the girl you want to attract. Chances are, she'll be more attracted to you once she gets to know you, and she won't have a chance to do that if you never speak up.  If you only see her at church on Sundays, for example, you might say something like, "Hey Hannah, how was your week?" Try to sit or stand near her when you get the chance so you'll have more opportunities to talk. Over time, build up to longer conversations by asking her about her interests, hobbies, and friends. Even if you have regular conversations with the girl you like, don't just assume because she talks to you that she's interested in dating you. However, you can pay attention to how she acts around you to get an idea of how she feels.  For instance, if she makes eye contact with you when you're talking, or if she always smiles or blushes when she sees you, she might be interested. She might also play with her hair, lean toward you when you're talking, or soften her expression around you if she likes you. If she doesn't seem interested, she may not be the girl God has chosen for you. However, she may just not know you well enough. Keep making efforts to chat with her when you cross paths until you have a better idea of how she feels about you. If you think the girl you like might be interested in you too, invite her to hang out with you and a few other friends. That will show her that you have a genuine interest in getting to know her, and it's fine if you start out just as friends.  For example, you might say something like, "Hey Kyla, I heard some of the kids from the youth group are going to a praise concert next weekend, and I was thinking of going. Do you want to come with me?" It's up to you whether you want to call this a date. If you want to take a little more time to get to know each other, it's okay to go as just friends. However, if you really like her and you want her to know it, you can tell her that, too. If you're ready to let her know how you feel about her, you might say, "Some of my friends are meeting for pizza tomorrow night. Do you want to go as my date?" As the two of you get to know each other better, be willing to open up to her. You don't have to tell her everything about yourself all at once, but as you get more comfortable, share your emotions and some of the meaningful things that have happened in your life. That will help her feel more connected to you, and she'll be able to make an honest decision about whether you're a good match for her. When you're first getting to know a girl, for example, you might just tell her that you love to fish. As you get closer, though, you might reveal that your grandpa took you fishing when you were young, and now it's a way for you to remember him. when you're ready. While you shouldn't just rush into asking out the first pretty girl you see, you also shouldn't wait too long to tell her how you feel. Once you feel comfortable knowing that you really like this girl, let her know. The way you do this is up to you, but it's best to find a quiet time when the two of you are alone. Be straightforward, and don't be afraid to let her know what you think makes her special.  For instance, you might say, "Rebecca, I love how true you are to your faith and the way you genuinely care about everyone. I'd really love to date you. Will you be my girlfriend?" If you're shy, try asking her through a text message or in a note. It can be hard to act in a godly way when you're feeling disappointed, but if you ask a girl out and she says no, remind yourself that it must not be part of God's plan right now. Try to put on a smile, tell her it's okay, and take some space if you need it while you process your emotions.  You might say something like, "Okay, I understand. I hope I didn't make you feel uncomfortable. I just think you're really special, and I hope we can still be friends." Then, politely excuse yourself. No matter what, be proud of yourself! Asking someone out is really hard, and you should feel good that you were brave enough to do it.
Summary: Make small talk when you see the girl you like. Pay attention to nonverbal cues to tell if she's romantically interested in you. Ask her to spend time with you as part of a group at first. Don't be afraid to show her your authentic self. Ask her out Respect her answer if she says no.

In some cases, your body might reject a piercing due to allergies. You can recognize an allergic reaction by a burning sensation, severe itching, gaping skin, a rash, or clear to yellowish discharge around your piercing. Doctors can recognize allergies by looking at your skin, but they cannot pinpoint specific allergies. Visit a dermatologist if you want a skin patch test to verify with certainty whether you're allergic to your piercing. Metal allergies are usually lifelong and cannot be treated. If your body's rejecting the piercing due to allergy, you must remove the piercing. Avoid jewelry made of whatever metal your piercing was to avoid future rejection. You may be able to use surgical steel piercings if you suffer from metal allergies. Surgical steel is designed to not cause allergic reactions. Wait  6-12 months before you get pierced again. Before you get another piercing, get a skin patch test to check which metals you're allergic to. Choose a hypoallergenic piercing made of a metal you know won't trigger a reaction. Tungsten, titanium, silver, platinum, and 14-karat gold are all hypoallergenic alloys.
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One-sentence summary --
Separate the signs of an allergic reaction from infection. Go to a doctor or dermatologist for an allergy test. Remove the piercing if you're allergic. Re-pierce your body after the area has healed.