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Tuesday, May 22, 2012

What Technology Use Today's Cordless iPod Docks?

By Helen Schneider


You may have seen a rising number of iPod accessory systems becoming available. There are many things to watch out for iPod docks. Yet, you don't have to be an expert to be able to choose your ideal speaker. I will offer various suggestions to aid you avoid unpleasant surprises when selecting your cordless speakers.

Wireless iPod docks are tempting given that they eliminate the speaker cable and eliminate requiring an external amplifier. Just envision installing a couple of speakers at your patio in the blink of an eye without a large cable clutter or streaming music wireless within your home. Regular speakers need an external audio amplifier in order to be driven. Then again, wireless loudspeakers have their own built-in power amplifier. For average to high audio power amplifiers, those speakers normally need to be plugged into a power outlet. This means that these speakers may only be put in areas that have power. This normally is not much of a predicament if you plan on putting loudspeakers in another room of your house. Yet, to eradicate the power cord, a number of cordless loudspeakers are powered by internal rechargeable batteries. The draw back is that following each use these need to be recharged. Furthermore, several types are quite heavy making it hard to move them around. Batteries also tend to age and need to be changed every so often.

Be certain to choose a speaker which provides enough audio power for yor application. If you are planning to set up your loudspeakers in your kitchen or bedroom, you may choose a fairly low-powered loudspeaker. Then again, if you are planning to set up wireless loudspeakers outdoors or in your home theater, you may want to have a look at average to high output power loudspeakers. Depending on whether or not you are planning to use the loudspeaker indoors or outdoors, you might want to go with a loudspeaker that is waterproof or at the very least water resistant.

Next, be certain that the transmitter unit can attach to the source audio that you want to drive your speakers with. Obviously the more audio inputs the transmitter has the better. If you wish to connect your transmitter to your surround system, you might need speaker terminal inputs unless your surround equipment provides line level audio for your rear speakers. Some more sophisticated transmitters also come with an iPod cradle. This cradle permits streaming of music directly from an iPod or iPhone and also acts as a recharger base. However, if you have a different MP3 player, you may still stream your music by connecting to the transmitter through a regular line audio input which almost every transmitter has. Ideally the audio input may be adjusted in volume such that the transmitter can adapt to different audio sources.

Cordless models generally make use of either analog or digital wireless audio transmission. Analog transmission generally at 900 MHz makes use of a technique that is akin to FM radio. Digital wireless loudspeakers utilize a transmission that is more akin to transmitting the contents of a CD as data and usually transmit at 2.4 GHz or 5.8 GHz. By streaming audio as information, static and distortion which are common problems of analog audio transmission are eradicated. With the growing range of wireless gizmos, there is more and more cordless interference. Modern cordless speakers usually use some sort of error correction system. This method allows the speakers to be able to tolerate interference with no music dropouts.

While purchasing iPod docks, a listening test is always a good idea. Yet, keep in mind that the sound quality will also depend on your environment. However, if you cannot find a couple of wireless speakers which sound just right, or if you already have a couple of loudspeakers, why not make your existing loudspeakers cordless through employing a cordless speaker kit? These kits come with a transmitter and one or more wireless amplifiers that may connect straight to your existing loudspeakers.




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