By Mike Hunter


There's a chance you're overwhelmed by the amount of cordless speakers on the market. I am going to help reduce your selection by taking a quick look at a few of the essential specs which have a substantial impact on audio quality as well as speaker overall performance.

Wireless loudspeakers are more challenging to choose than normal loudspeakers because they include an amp and also a wireless receiver. Various products change in quality of each of these components.

Loudspeakers can be found in various sizes as well as with different power. Usually the larger the wattage the louder the speaker. High-wattage speakers are essential for open-air applications or maybe if you do have a large space.

The built-in amp in addition to the transducers determines how much power the speaker can handle. Speaker manufacturers are going to either provide maximum or RMS power ratings. RMS power is much more objective than maximum wattage since it gives much more clues regarding the actual amp power handling in addition to amp power source. Maximum wattage is often exaggerated by speaker makers since the speaker is only able to endure this amount during brief bursts of time.

However, keep in mind that music signals possess large surges in output power so make certain there is sufficient headroom in the speaker power rating to remove audio clipping during brief audio bursts.

Sound amplifiers are going to have audio distortion which changes with regards to the output wattage at which the loudspeaker is driven. The distortion is usually known as "THD" as well as "total harmonic distortion". Make sure you evaluate the output wattage at which the harmonic distortion is specified. Ideally you will find harmonic distortion numbers for different power figures As soon as the output power approaches maximum rated wattage, the music signal will begin clipping and the distortion rises dramatically. Additionally, the loudspeaker transducers are going to be driven into nonlinear regions and therefore be sure the loudspeaker incorporates high-quality drivers.

In case you select a type with a large speaker wattage, you may favor a loudspeaker with a digital amp due to the high amplifier efficiency in comparison with analog amplifiers. Digital amps usually have greater harmonic distortion when compared with analog amps. This distortion is in part caused by the switching FET stage of the amplifier. Many products have more than one transducers that require the sound signal to be divided with a crossover. Some models include separate amps for each driver.

Cordless loudspeakers often times have several drivers. Each transducer is driven with a different area of the music spectrum. The sound signal is split into various areas using a crossover. Regular crossovers require relatively large and heavy components if the speaker offers a high wattage. Alternatively, a few products have got individual amps, one per driver. The music signal can then be separated into distinct regions by utilizing small and inexpensive parts before the amplifier. The receiver that picks up the wireless audio either coming from a transmitter or coming from a cordless network or Bluetooth signal also has a major impact on audio quality. For best sound quality, you really should steer clear of 900 MHz analogue wireless transmission that naturally has a low signal-to-noise ratio as well as rather pick a receiver which uses a digital music signal.

Wireless loudspeakers that use digital transmission either receive uncompressed audio or use a standard just like Bluetooth which compresses audio to some degree. Bluetooth music transmitters utilize audio compression and commonly are not able to transmit to more than one loudspeaker but offer the benefit of not requiring a separate transmitter.




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