Key features of cordless loudspeakers

| Thursday, January 12, 2012
By Gunter Fellbaum


You can find a flood of wireless speaker products readily available. Different products offer you different performance as well as level of quality. I will make it easier to choose which model to decide on based on loudspeaker performance.

If you would like set up wireless surround sound loudspeakers you might consider wireless speakers to avoid rewiring your house.

But, it may be difficult to pick a suitable product considering the large number of goods currently available.

Should you have a huge area you might need to opt for a loudspeaker which has a large wattage as a way for the loudspeaker to be adequately loud.

The highest speaker power is determined by both just how much wattage the speaker components are designed for as well as the power rating of the built-in amp. Never be fooled by maximum power specs which are generally exaggerated by manufacturers and rather consider the RMS power rating.

Music signals, however, have varying power. As a result preferably you need to have both wattage ratings. The RMS spec allows you to compare speakers much more objectively yet the loudspeaker should offer a maximum power handling that is substantially bigger than the RMS spec in order to avoid clipping of the audio during peaks.

Another essential spec is the speaker frequency response chart. Several makers will publish the frequency response chart that is perfect for learning how linear the speaker is going to reproduce audio over frequency and gives an excellent clue about speaker audio quality.

Harmonic distortion, often called THD, may also affect the audio quality of the loudspeaker. This expression is either shown in dB or in % and tells exactly how much the audio is changed from the initial music signal. The wireless receiver, music amp and also the drivers lead to distortion. Harmonic distortion will often grow with increasing music wattage and so you want to look for which wattage the distortion is provided. Once the sound amplifier is driven to its highest power, audio distortion increases drastically due to clipping of the sound signal. Loudspeaker music distortion may also depend upon the quality of the drivers

The grade of the internal amp will have a great effect on sound quality and also power efficiency. Digital amplifiers naturally are much more efficient when compared with Class-A as well as Class-AB amplifiers. Large-efficiency amps eliminate heavy heat sinks and help save power. However, some digital amp models experience relatively large audio distortion as a result of nonlinearities of the internal switching stage. Hence be aware of the harmonic distortion figure.

Quite a few models possess 2 or more transducers that require the sound signal to be split with a crossover. Instead, several models have independent amplifiers per driver. In this case the gain of each amplifier usually can be adjusted individually.

You should pick a product with a good-quality cordless receiver. Entry-level loudspeakers with 900 MHz analogue receivers will create lots of noise in addition to music distortion during the wireless transmission. Newer models make use of digital audio transmission and deliver superior levels of signal-to-noise ratio and fidelity over previous-generation types.

You might opt to select a product which utilizes uncompressed music transmission for best results and also is capable of transmitting to a number of loudspeakers from a single transmitter to enable you to install loudspeakers in various rooms of your property.




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