How Much Power Do You Really Want From Your Miniature Amplifiers?

By Sherry Lambert


Picking the ideal type is tricky whilst confronted with a huge amount of different technical jargon and specs, like "T-amp", "channel separation", "efficiency" and so on. You may not even fully understand the most basic of these terms, like "amplifier wattage". In this article, I will have a closer look at one of the most essential of these terms: "amplifier output wattage". This term is also known as "wattage".

The output wattage of the amplifiers is shown as "wattage". This shows how loud your amplifier may drive your loudspeakers. If you have a small room then you don't need much more than several watts. If you want to install speakers outside or in a live show then you will need several hundred watts of power. Please note that numerous amps will begin distorting the audio as soon as the audio reaches higher wattage. If you want to enjoy low-distortion music then you may wish to pick an amplifier that is going to offer you higher wattage than you will really need.

"Wattage" is every now and then also known as "Power" or "amplifier output power". To put it in a nutshell, "wattage" shows how high the amplifier can drive your speakers. The higher this number the louder your speakers. If you have a small space then you don't need much more than a couple of watts. If you want to set up speakers outside or in a live show then you will need several hundred watts of power. Please note that many amps will start clipping the audio once the audio reaches bigger wattage. If you want to enjoy low-distortion audio then you might wish to select an amplifier which is going to give you more wattage than you will really require.

Music and voice is not uniform regarding volume. Thus the peak power rating is nonetheless important, though not as essential as the rms power spec. Ideally the amplifier is going to publish both the rms and peak power rating. Having a high peak power rating is going to make sure adequate headroom for audio peaks which are widespread in audio signals. The most important reason is that audio signals are going to have brief bursts of high power that the amplifier has to deal with. Rms power is measured with a uniform sine signal that hardly compares with a music signal in terms of the power envelope.

Please notice that often the peak output power of the amp will depend on the impedance of your speakers which is usually between 4 and 8 Ohms. An audio amplifier that has a set internal supply voltage will have a maximum output voltage swing which is limited by that supply voltage. If you are driving an 8-Ohm speaker then the amp must output two times the output voltage than whilst driving a 4-Ohm speaker to be able to deliver the same amount of wattage. Typically highest output power is specified for a 4-Ohm speaker impedance. Though, ideally the manufacturer is going to show which speaker impedance the output power rating is being referenced to. Please note that several amplifiers are not able to drive speakers with extremely low loudspeaker impedance.




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