Selecting a good amplifier for your speakers is not a trivial chore. You wish to make sure that your amplifier matches your speakers. I will clarify some important amplifier terminology and give some suggestions to help you pick the best amplifier.
The most apparent parameter is the size of the amp. 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 large number of amps are the size of a standard rack. This enables your amp to be stacked on top of your other audio devices.
Nearly all of modern audio amplifiers are based on solid-state technology whilst a small portion is based on tube technology which has been popular over a decade ago. Unfortunately, tube amps have fairly large audio distortion which describes how much the audio signal is degraded by the amplifier.
Most of modern audio amplifiers are based on solid-state technology whilst a tiny portion is based on tube technology which has been popular over a decade ago. Tube amps, however, have a fairly large amount of harmonic distortion. Harmonic distortion describes how much the audio signal is degraded whilst being amplified. This expression is frequently used while evaluating the audio quality of amplifiers.
An audio distortion of up to 10% is usual for tube amps while solid-state amps have lower audio distortion depending on the particular technology. Several of the most popular technologies in the past have been "Class-A" and "Class-AB" technologies. These technologies use different arrangements to amplify the audio. Amps based on any of these technologies are also referred to as "analog amplifiers". Audio amps which are based on these technologies usually have low harmonic distortion. Also, this technology is relatively inexpensive. Though, the disadvantage is that the power efficiency is merely in the order of 20% to 30%. This means that most of the electrical power provided to the amp is wasted as heat whereas a small fraction is utilized to amplify the audio signal.
Your amp should deliver enough power to drive your speakers. The amount of power will depend on the power handling rating of your loudspeakers. Another parameter is the size of your space. Speaker power handling is given as peak power which describes the utmost amount of power during short bursts whereas average power refers to how much power the loudspeakers can tolerate constantly.
If your listening area is fairly small then you may not require to drive your loudspeaker to its rated power handling value. You would most likely be ok having an amplifier that can offer 20 to 50 Watts while your speakers may be able to handle 100 Watts of power. Loudspeakers though differ in their impedance and sensitivity. As a rule of thumb speakers with low impedance offer higher sensitivity. High-sensitivity speakers are less difficult to drive to high volume than low-sensitivity speakers. Be sure that your amplifier can drive your speaker impedance. You can without difficulty find the rated speaker impedance range in your amplifier's user manual.
Last but not least, make certain that your amp introduces little noise and has a broad enough frequency response. High-quality amplifiers will have a signal-to-noise ratio of at the very least 100 dB and a frequency response of no less than 20 Hz to 20 kHz.
The most apparent parameter is the size of the amp. 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 large number of amps are the size of a standard rack. This enables your amp to be stacked on top of your other audio devices.
Nearly all of modern audio amplifiers are based on solid-state technology whilst a small portion is based on tube technology which has been popular over a decade ago. Unfortunately, tube amps have fairly large audio distortion which describes how much the audio signal is degraded by the amplifier.
Most of modern audio amplifiers are based on solid-state technology whilst a tiny portion is based on tube technology which has been popular over a decade ago. Tube amps, however, have a fairly large amount of harmonic distortion. Harmonic distortion describes how much the audio signal is degraded whilst being amplified. This expression is frequently used while evaluating the audio quality of amplifiers.
An audio distortion of up to 10% is usual for tube amps while solid-state amps have lower audio distortion depending on the particular technology. Several of the most popular technologies in the past have been "Class-A" and "Class-AB" technologies. These technologies use different arrangements to amplify the audio. Amps based on any of these technologies are also referred to as "analog amplifiers". Audio amps which are based on these technologies usually have low harmonic distortion. Also, this technology is relatively inexpensive. Though, the disadvantage is that the power efficiency is merely in the order of 20% to 30%. This means that most of the electrical power provided to the amp is wasted as heat whereas a small fraction is utilized to amplify the audio signal.
Your amp should deliver enough power to drive your speakers. The amount of power will depend on the power handling rating of your loudspeakers. Another parameter is the size of your space. Speaker power handling is given as peak power which describes the utmost amount of power during short bursts whereas average power refers to how much power the loudspeakers can tolerate constantly.
If your listening area is fairly small then you may not require to drive your loudspeaker to its rated power handling value. You would most likely be ok having an amplifier that can offer 20 to 50 Watts while your speakers may be able to handle 100 Watts of power. Loudspeakers though differ in their impedance and sensitivity. As a rule of thumb speakers with low impedance offer higher sensitivity. High-sensitivity speakers are less difficult to drive to high volume than low-sensitivity speakers. Be sure that your amplifier can drive your speaker impedance. You can without difficulty find the rated speaker impedance range in your amplifier's user manual.
Last but not least, make certain that your amp introduces little noise and has a broad enough frequency response. High-quality amplifiers will have a signal-to-noise ratio of at the very least 100 dB and a frequency response of no less than 20 Hz to 20 kHz.
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