The frequency response is by far the most often found parameter to characterize wireless loudspeakers. Having said that, it may often be deceptive and may possibly not offer a good sign of the sound quality. To help you make a wiser purchasing decision, I'll clarify what this specification means and how to understand it. This ideally will guarantee you will get the best wireless speakers for your project. A set of wireless loudspeakers are only able to operate within a particular frequency range. Any kind of signals outside this range are going to be eliminated. Consequently the frequency response offers a vital hint concerning whether a specific set of cordless loudspeakers might be appropriate for a particular use. If the frequency range is 20 Hz to 20 kHz as an example, the cordless speakers would be able to transmit all signals with a frequency higher than 20 Hz and lower than 20 kHz. It may seem the greater the frequency response the better the cordless loudspeakers. That, however, might not always be. You ought to evaluate the specs far more carefully to be able to adequately interpret all of them.

A large frequency response doesn't mean the cordless loudspeakers offer good audio quality. For example a set of cordless loudspeakers that has a frequency response between 30 Hz and 15 kHz might sound much better than another set having a response between 10 Hz and 30 kHz. Also, every maker, it seems, uses a different technique for specifying the minimum and highest frequency of their wireless loudspeakers. The standard convention is to display the frequency range inside of which the sound pressure level of the loudspeakers will drop no more than 3 dB from the nominal level.

Apparently there are many techniques that manufacturers use when specifying the frequency response. The most frequently used method is to describe the frequency response as the frequency range within which the cordless loudspeakers have quite constant sound pressure level having a greatest decrease of 3 decibel (dB). Ordinarily the drop in sound pressure level is highest at the upper and lower frequency.

The conditions under which the frequency response was measured are also important to fully understand. Actually amps may have different frequency responses depending on the loudspeaker driver element which is built in.

The conditions under which the frequency response was measured may also be crucial to comprehend. The fact is amps may have different frequency responses depending on the loudspeaker driver element that is built in. Generally contemporary cordless speakers which use digital or "Class-D" amplifiers will show changes in the frequency response with various driver loads. The main reason is the fact that Class-D amplifiers utilize switching FETs as the power stage that generate lots of switching components. These components are eliminated by a filter which is part of the internal speaker amplifier. The lowpass filter characteristic, on the other hand, heavily depends on the connected speaker load.

Several of the latest digital amps feed back the audio signal following the lowpass filter to compensate for this tradeoff and to make the frequency response of the amp independent of the attached driver load. Then again, if the amp is not designed well, this sort of feedback could cause instability and also lead to loud noise being generated by the amplifier if particular loudspeakers are connected. Different amplifiers use transformers and provide outputs for different loudspeaker loads. Apart from enhancing the frequency response of the amp, this technique usually additionally improves the amplifier efficiency.