I will look at some audio amplifiers and clarify some basic expressions to assist you choose the best amp for your speakers
One important criterion is the size of the amplifier. You can purchase models that can fill half a room. In contrast, some of the latest miniature amplifier models are no larger than a deck of cards. Many models will be the size of a ordinary audio rack so that you can simply stack it on top of your audio equipment.
The most evident criterion is the size of the amplifier. There are types that are as large as half your living room whilst a number of of the most recent mini amplifier types are as tiny as a bar of soap. A lot of amplifiers are rack sized. This allows them to be stacked on top of your other audio equipment. The largest part of modern audio amps are based on solid-state technology whereas a small portion is based on tube technology which has been popular over a decade ago. Then again, tube amps have relatively high audio distortion. Audio distortion refers to how much the audio signal is being degraded while passing through the amplifier and is given in percent. This value is often used when comparing the audio quality of amplifiers.
There are a number of core amplifier technologies available. One technology is called "solid-state". Solid-state amps now make up for the majority of audio amps. In the past, tube amps have been popular. Even today tube amplifiers are still obtainable. Unfortunately, tube amplifiers have relatively large audio distortion which describes how much the audio signal is degraded by the amp.
"Class-D" amplifiers, on the other hand, which are also named "digital amplifiers" have a power efficiency of at least 80% and are smaller and have a smaller power supply than comparable analog amplifiers. As a result of the switching output stage, digital amps generally have larger harmonic distortion than analog amplifiers. However, a few of the latest types are capable to reduce distortion to 0.05% and less by employing a feedback mechanism.
Your amplifier should deliver sufficient power to drive your loudspeakers. The amount of power will depend on the power handling rating of your speakers. Another parameter is the size of your room. There are two values for speaker power handling: peak and average power handling. The peak value shows how much power the loudspeaker can handle for short periods of time. The average value on the other hand denotes how much power the speaker can handle continuously without damage.
In a small listening environment, you might not need to drive your speakers to their rated value. 20 to 40 Watts of power would almost certainly be enough. Notice though that speakers vary in their sensitivity. Usually a low-impedance loudspeaker will be easier to drive to high volume than a high-impedance speaker. Check your amplifier manual to ensure that your amplifier can drive your speaker impedance.
Additional vital parameters are the signal-to-noise ratio and frequency response which should be in the order of at least 100 dB signal-to-noise ratio and 20 Hz to 20 kHz frequency response for high-quality amps.
One important criterion is the size of the amplifier. You can purchase models that can fill half a room. In contrast, some of the latest miniature amplifier models are no larger than a deck of cards. Many models will be the size of a ordinary audio rack so that you can simply stack it on top of your audio equipment.
The most evident criterion is the size of the amplifier. There are types that are as large as half your living room whilst a number of of the most recent mini amplifier types are as tiny as a bar of soap. A lot of amplifiers are rack sized. This allows them to be stacked on top of your other audio equipment. The largest part of modern audio amps are based on solid-state technology whereas a small portion is based on tube technology which has been popular over a decade ago. Then again, tube amps have relatively high audio distortion. Audio distortion refers to how much the audio signal is being degraded while passing through the amplifier and is given in percent. This value is often used when comparing the audio quality of amplifiers.
There are a number of core amplifier technologies available. One technology is called "solid-state". Solid-state amps now make up for the majority of audio amps. In the past, tube amps have been popular. Even today tube amplifiers are still obtainable. Unfortunately, tube amplifiers have relatively large audio distortion which describes how much the audio signal is degraded by the amp.
"Class-D" amplifiers, on the other hand, which are also named "digital amplifiers" have a power efficiency of at least 80% and are smaller and have a smaller power supply than comparable analog amplifiers. As a result of the switching output stage, digital amps generally have larger harmonic distortion than analog amplifiers. However, a few of the latest types are capable to reduce distortion to 0.05% and less by employing a feedback mechanism.
Your amplifier should deliver sufficient power to drive your loudspeakers. The amount of power will depend on the power handling rating of your speakers. Another parameter is the size of your room. There are two values for speaker power handling: peak and average power handling. The peak value shows how much power the loudspeaker can handle for short periods of time. The average value on the other hand denotes how much power the speaker can handle continuously without damage.
In a small listening environment, you might not need to drive your speakers to their rated value. 20 to 40 Watts of power would almost certainly be enough. Notice though that speakers vary in their sensitivity. Usually a low-impedance loudspeaker will be easier to drive to high volume than a high-impedance speaker. Check your amplifier manual to ensure that your amplifier can drive your speaker impedance.
Additional vital parameters are the signal-to-noise ratio and frequency response which should be in the order of at least 100 dB signal-to-noise ratio and 20 Hz to 20 kHz frequency response for high-quality amps.
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