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Ratnarao
Investigating a few of the technical specs of today's power amplifiers, one cannot help but be at a loss in attempting to compare different products and terms, e.g. "t-amp", "THD" and so on. I am going to make clear the term "amplifier power" a bit more in this piece of writing. "Power" is one of the most fundamental terms describing amplifier functioning. Then again, it is time and again misunderstood. A few suppliers also in the past have used this term in a confusing manner in order to conceal the true performance.
The output power of the amplifiers is given as "wattage". This shows how loud your amp may drive your loudspeakers. If you have a small space then you don't require much more than several watts. If you want to set up loudspeakers outside or in a concert then you will require several hundred watts of power. For best music quality, you may want to go with an amp that has higher power than you require because most amplifiers will exhibit growing distortion once the music output power increases.
Power is either given as "Watts peak" which means the amp can produce short bursts of this amount of power or "Watts rms" which describes how much power the amp may provide for a longer period of time. The peak output power specification in the past habitually led to makers listing huge wattage specs for small amplifiers. However, in reality these amps would not be able to maintain bigger amounts of output power for larger periods of time.
Power is either given as "Watts peak" which means the amplifier can produce brief bursts of this amount of power or "Watts rms" which describes how much power the amplifier can offer for a longer amount of time. In the past, manufacturers have frequently preferred showing the "peak power". This number is bigger than the average or "rms" power. On the other hand, "peak power" can often be ambiguous since there is no standard showing the period of time that the amp has to be able to provide this amount of power. Music and voice is not constant by way of volume. As such the peak power rating is nonetheless important, although not as significant as the rms power spec. Ideally the amplifier will publish both the rms and peak power spec. Having a high peak power spec is going to ensure enough headroom for music peaks which are widespread in music signals. The most important reason is that audio signals will have brief peaks of high power which the amp has to cope with. Rms power is measured with a constant sine signal that hardly compares with a music signal by way of the power envelope.
Usually the impedance of the loudspeakers which you attach to the amplifier will determine how much power the amplifier can provide. Speaker impedance is measured in Ohms. Normally loudspeakers have an impedance between 4 and 8 Ohms. An audio amplifier which has a set internal supply voltage is going to have a maximum output voltage swing that is restricted by that supply voltage. If you are driving an 8-Ohm speaker then the amplifier has to provide two times the output voltage than while driving a 4-Ohm speaker to be able to output the same amount of output power. Accordingly often largest output power is given for a specific speaker impedance.
The output power of the amplifiers is given as "wattage". This shows how loud your amp may drive your loudspeakers. If you have a small space then you don't require much more than several watts. If you want to set up loudspeakers outside or in a concert then you will require several hundred watts of power. For best music quality, you may want to go with an amp that has higher power than you require because most amplifiers will exhibit growing distortion once the music output power increases.
Power is either given as "Watts peak" which means the amp can produce short bursts of this amount of power or "Watts rms" which describes how much power the amp may provide for a longer period of time. The peak output power specification in the past habitually led to makers listing huge wattage specs for small amplifiers. However, in reality these amps would not be able to maintain bigger amounts of output power for larger periods of time.
Power is either given as "Watts peak" which means the amplifier can produce brief bursts of this amount of power or "Watts rms" which describes how much power the amplifier can offer for a longer amount of time. In the past, manufacturers have frequently preferred showing the "peak power". This number is bigger than the average or "rms" power. On the other hand, "peak power" can often be ambiguous since there is no standard showing the period of time that the amp has to be able to provide this amount of power. Music and voice is not constant by way of volume. As such the peak power rating is nonetheless important, although not as significant as the rms power spec. Ideally the amplifier will publish both the rms and peak power spec. Having a high peak power spec is going to ensure enough headroom for music peaks which are widespread in music signals. The most important reason is that audio signals will have brief peaks of high power which the amp has to cope with. Rms power is measured with a constant sine signal that hardly compares with a music signal by way of the power envelope.
Usually the impedance of the loudspeakers which you attach to the amplifier will determine how much power the amplifier can provide. Speaker impedance is measured in Ohms. Normally loudspeakers have an impedance between 4 and 8 Ohms. An audio amplifier which has a set internal supply voltage is going to have a maximum output voltage swing that is restricted by that supply voltage. If you are driving an 8-Ohm speaker then the amplifier has to provide two times the output voltage than while driving a 4-Ohm speaker to be able to output the same amount of output power. Accordingly often largest output power is given for a specific speaker impedance.
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