If you have spent plenty of cash on a pair of good-quality speakers, you need to ensure that you receive a good amplifier that will deliver excellent audio quality while meeting your financial budget. Let me give some pointers about audio amplifier technologies that will help you make the right purchasing decision.
Audio amplifiers can be found in many different size and shapes. They use different technologies and have many technical specs. It is then tough to choose which model to select. You don't have to be an authority. Just follow some simple guidelines and you need to settle for your amp.
One important criterion may be the size the amplifier. You should buy models which may fill half a space. In contrast, some of the latest miniature amplifier models are not any bigger than decking of cards. Many units would be the size a regular audio rack so that you can easily stack it on top of your audio equipment.
The vast majority of today's audio amplifiers are solid state amplifiers instead of some tube amplifiers. Tube amplifiers are already dominant several years or so ago. However, tube amplifiers have fairly high audio distortion. Audio distortion refers to simply how much the audio signal has degraded while passing from the amplifier and it is given in percent. This value is usually used comparing the audio quality of amplifiers.
Tube amps can have audio distortion of up to 10%. Solid state amplifiers could have lower audio distortion depending on the amplifier technology that is used. Essentially the most traditional amps make use of a "Class-A" and "Class-AB" technology. These amplifiers will also be called "analog amplifiers". Fractional treatments offers fairly low audio distortion. However, the energy efficiency is only 10 to 30%. This means that almost all of the electrical energy supplied to the amplifier is wasted as heat while a little fraction can be used to amplify the audio signal.
In contrast, "Class-D" amplifiers which are also referred to as "digital amplifiers" give a power efficiency of typically 80 to 90%. This permits the amplifier and power source to make much smaller than analog amplifiers. The potential downside is digital amplifiers usually have higher audio distortion than analog amplifiers. Chiefly a result of the switching distortion with the output power stage. Most recent digital audio amplifiers, however, require a feedback mechanism and will minimize the audio distortion to below 0.05%.
When picking an amplifier, be sure that the output power will drive your speakers. The specified power is determined due to the fact much power your speakers are prepared for and also the size a room where you will be listening. Speaker power handling capability emerges as peak power and average power. The height power value is the term for just how much power the speaker are equipped for for a short period of time as the average power handling value describes simply how much power you'll be able to drive the speaker at continuously without damage.
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