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Amplifier Sub
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 BOSS AUDIO AR1600.4 ARMOR MOSFET CAR AMPLIFIER W/REMOTE SUB CONTROL  US $151.95
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 01 JAGUAR S-TYPE Amplifier Sub Woofer Amp 00 OEM STYPE US $100.00
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Here are some more information for Amplifier Sub:
An amplifier takes a signal from a source and makes it larger. This makes the sound louder. The hard part is amplifying the signal without adding any distortion. Amplifiers must have a power supply strong enough to keep them going and must store enough current to deliver all of the transients in the music.
How they work
A cassette radio or CD player produces a maximum of about nine real watts into four speakers given the power it gets from the car's electrical system. So what if you want more than nine real watts to power each of the speakers? You obviously need an amplifier. Amplifiers give more power allowing you to play your music more loudly. Amplifiers also improve the sound quality of music at all volume levels.
Features of Car Amplifiers
Here are some important facts you should be aware of if you want to choose the right amplifier...
o Bridging amplifiers are very flexible because they can be used in different system configurations. One amplifier can be used to power one, two, three or four speakers.
o Speaker-level inputs are the only way your amplifiers can get signals if your radio doesn't have RCA-type output jacks.
o Preamp outputs are very useful when creating a multi-amplifier system because they allow an un-amplified signal to pass out of one amplifier to another.
o Remote bass control is available in some amplifiers that have a port to add an optional control knob. This varies the amount of power going to the subwoofer driven by the amplifier.
o High-pass filters, low-pass filters and crossovers give you the flexibility to remove the frequencies you don't want to send to the speakers powered by the amplifier.
o Bass boost is available in some amplifiers. This lets you boost the bass significantly up to 18dB through a circuit.
An amplifier can have one channel of output or as many as eight channels. The most common amplifiers are two and four channel models but mono amplifiers are also becoming popular.
You can get great amplifiers and deals at CarAudioPlus. If you want to read more on car audio visit: car-audio-products-and-accessories.com
Chimezirim Odimba writes for CarAudioPlus.
Piecemeal Auto Sound Systems
Those who are in the market for auto sound systems are probably well aware of the many decisions that need to be made throughout the process. Gone are the days when you went in, pointed to a box and walked out with all the pieces, parts, and components you would ever need for a really kickin' sound. The truth of the matter is that there are many pieces and parts that work together in order to create the ultimate sound system and everyone seems to have different requirements, styles, tastes, and budgets to work with.
Because of this, many manufacturers of auto sound systems have wised up to the fact that some people will buy the components they need to create the sound system of their dreams piece by piece as budgets allow. This is actually a very intelligent way for customers on a budget to buy the sound system they are hoping to some day have. As a result you will find that speakers, amplifiers, sub woofers, and the actual stereo are often sold separately and at very reasonable prices.
Most of us hate living within limited budgets but understand that often in life it is a necessary evil. Living on a budget is not such a terrible thing really. If we had everything we wanted, what on earth would there be to look forward to? At least that is what I keep telling myself. I, however, seem to be the queen of budget living and bargain hunting. I love little more in life than finding a great deal on an item I've had my eye on for quite a while and hate little more than finding it cheaper once I've purchased it. As such, I tend to invest a great deal of time researching any major purchase before taking the plunge. A good auto sound system by this I mean good quality, minimal features is going to run (total package and installation) at least $1,000 with many costing a good deal more than that.
That doesn't mean you need to have a thousand bucks lying around the house in order to begin building your auto sound system. You can buy a decent set of speakers for around $200-$260 if you desire. You can find sets at lower prices, but this is the price for a fairly decent set of speakers that should serve you well. Keep in mind that you could very easily spend a lot more than this on speakers if you aren't careful. Living on a budget means you have to make some sacrifices along the way in order to have the things you want in life. Buy the speakers and have them installed (if you can do it or your know someone who can, this will save a lot of time and money).
Once you have the first component, whichever one that may be (that choice is entirely up to you and largely dependent on your personal tastes and which need replacing worse in the vehicle you own) you can begin saving towards the next. You should also consider asking friends and family (who would like to know what to get you for the holidays) to help you reach your smaller goals along the way. Most people are glad to help with specific items if they know what those items are. The point is that this isn't an all or nothing proposition. Take small steps towards your prize and you will find that you are constantly getting one step closer.
About the Author
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i have a pioneer sub with 250w nominal. how strong of an amplifier should i plan on buying.?
what would be the optimal nominal power rating i should look for when deciding on the amplifier to purchase to power this sub?
If we're talking the Pioneer TS-SW301 sub here - that's a 4 ohm single voice sub.
You'll want to look for an amp that is 250W x 1 RMS at a 4 ohm load.
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