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Featured Article: Amplifier Audio Amp:

So you've invested in a state-of-the-art guitar - what next? Chances are you'll need an amplifier. Guitar amplifiers are an essential part of your music gear; in fact, most musicians agree that a good guitar is no use without a good amp.

When shopping for an amp, you usually have four options: tube, solid state, digital, and hybrid. While the last two are certainly more high-tech, newer isn't always better when it comes to amps. Each type has its own advantages, and it all comes down to your budget and personal preference.

Tube guitar amplifier

The first amps to become available were tube amps. Many experts find them their warm, full tone more natural, and digital amps have tried and failed to duplicate it. Another reason they're still around is power-saving: they sound much louder than solid-state and digital amps at the same wattage. The only drawback is that the glass tubes break easily, so you'll have to be careful moving them around.

Solid state guitar amplifiers

In solid-state amps, the tubes are replaced by transistors. While this makes them sturdier, it tends to make them sound harsh or distorted at high frequency. However, these amps will stand up to heavy use better than tube amps.

Digital guitar amplifier

Digital amps are programmed to imitate a wide range of amp sounds, including distortions, riffs, and the classic tube amp sound. Cheaper digital amps sound synthetic, but with high-end ones you can hardly tell the difference. Get a digital amp if you like being creative and trying out different styles.

Hybrid guitar amplifiers

These amps combine tube and solid-state technology into a single machine. The sound quality isn't as great as the original tube amps, but they will do if you want tube-quality sound without spending on a high-end digital amp.

More guitar amplifier information is available in Picky Guide which contains thousands of quality product information for picky consumers.

Car Tweeters – for a Complete Audio Entertainment

Do you have a music system in your car? If so, then you must have noticed how your amplifier reproduces low and mid range sounds with ease, while faltering slightly on high scales. Woofers and subwoofers will certainly get you by when you just want some music in your car, but to get those high pitched tones right, you definitely need a tweeter. The tweeter will reproduce the high-pitched sounds in a crystal clear, smooth manner. Adding a tweeter to your car music system is certainly a good thing.

Some points must be kept in mind when choosing a tweeter. These are,

1. Power supply – Adding a tweeter will mean a demand for extra power. Make sure your vehicle’s power system can handle more load. Also, make sure the power on your speakers and woofers match that on the tweeters.

1. Output strength – Go through the product manual before you sign the check. You are buying a tweeter for reproducing high pitched sounds, so the output impedance must be high. Anything from 4-8 ohm is good. Do not go for any higher, as it will guzzle power like an elephant’s diet. Any lower and it won’t serve the purpose it was bought for.

1. Mounting options – You should be able to mount the tweeter on any surface around your speaker. It can be on the ceiling, surface, flush, angle or door. Make sure it comes with sufficient options to mount it almost anywhere.

1. Constituent Materials – Tweeters with paper cones start suffering in sound quality only after a few months. Paper or foam cones also waste some of the sound through inward absorption. To avoid this, go for tweeters with polypropylene or silk cones. These last longer and also reproduce sound better. There are bullet shaped tweeters made of titanium and chrome. These are more expensive, but last really long. So, if you can afford the price tag, go for these.

1. Positioning the tweeter – This is perhaps the easiest decision to make, because tweeters are really small in size. These are usually anything from 1-6 inches long. So, you can even mount one on the body of a speaker if you are in a crunch for space.

Keep these points in mind when you go to buy yourself  car tweeters for your music system. The quality of sound these little babies can provide are certainly worth the price tag.

About the Author

7 Elephants has been a major distributor of many brands of car tweeters at reasonable prices.

I am hooking up a 550W car audio amplifier to two marine batteries, how long will the batteries last?

This setup is for a mobile radio with 4 6x9 and a Kenwood 35x4 Car CD player. It ran last year for about 20 hours with the 2 batteries and no amp. I just want to see if anyone can give me a guess as to how long it will last with the 500W amp.

I would guess 20 to 30 minutes, but it really depends on many factors like volume ect....

Maybe ask someone at Batteries Plus ( http://www.batteriesplus.com ), they might be able to come up with a better estimation.

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