Thursday, February 27, 2014

Review Of Nowaday's Wireless Loudspeakers

By Mike Hunter


I want to provide some suggestions so that you can pick a pair of wireless speakers from the numerous available types. For those who have a big home then installing loudspeakers in different rooms may be a difficult chore. You possibly will not want to drill openings in your walls to run speaker wires. Alternatively, wireless loudspeakers offer ultimate freedom and ease of installation.

Cordless speakers are an excellent option for placing loudspeakers in additional places of your dwelling with no need of placing wiring. In addition, those speakers are good for adding multichannel surround sound to your TV without the need of installing lots of loudspeaker cord across the room.

Speaker wattage is one of the first parameters. The larger the speaker power often the higher the speaker sound pressure level can be.

The maximum speaker power is determined by both just how much wattage the loudspeaker components can handle together with the power rating of the built-in amplifier. Do not be fooled by maximum wattage ratings which are often exaggerated by vendors and rather look into the RMS wattage rating.

Music signals, however, contain varying wattage. Thus preferably you need to have both power ratings. The RMS rating will help you to compare speakers much more objectively however the loudspeaker should have a maximum power handling which is significantly larger than the RMS spec in order to avoid clipping of the audio during peaks. Another essential parameter is the frequency response which indicates over which frequency range the speaker can recreate audio even though it is advisable to look at the complete frequency response graph when comparing speakers.

Sound amps will have music distortion which changes with regards to the output wattage at which the loudspeaker is driven. The distortion is usually named "THD" or "total harmonic distortion". Harmonic distortion will often grow with increasing audio power and so you want to look for which power the distortion is provided. When the music amplifier is driven to the maximum wattage, audio distortion increases considerably due to clipping of the audio signal. Loudspeaker sound distortion will also depend upon the quality of the drivers

If you select a model having a high loudspeaker power, you could favor a loudspeaker with a digital amplifier due to the high amp efficiency compared to analog amplifiers. Yet, a number of digital amp brands have relatively high audio distortion due to nonlinearities of the internal switching stage. Hence pay attention to the harmonic distortion number. Wireless loudspeakers usually have several drivers. Each driver is driven with a different part of the audio spectrum. The sound signal is split up into various regions using a crossover. Alternatively, a number of brands will have independent amplifiers for each driver. In this case the gain of each amplifier can usually be modified separately.

Wireless speakers frequently have a number of drivers. Each transducer is driven with a different part of the audio spectrum. The music signal is split up into different areas by using a crossover. Some products incorporate independent amplifiers for every driver. The receiver which picks up the cordless audio either from a transmitter or coming from a wireless network or Bluetooth signal also has a significant influence on sound quality. For best sound quality, you might steer clear of 900 MHz analogue wireless transmission which naturally has a low signal-to-noise ratio as well as instead go with a receiver which utilizes a digital audio signal.

Cordless loudspeakers that use digital transmission either receive uncompressed audio or use a standard such as Bluetooth that compresses audio somewhat. Bluetooth music transmitters utilize music compression and typically can't broadcast to more than one loudspeaker but offer the advantage of not requiring a separate transmitter.




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