This range is specified by showing 2 frequencies: a lower in addition to upper frequency. However, the frequency response often is utilized in order to mislead customers by stretching out the frequency range a great deal beyond the range where the amplifier still works properly and also hides the fact that the amplifier may not be linear. In this chart, you will find the way the amplifier functions inside the frequency response range. You may also discover any peaks and valleys the amplifier could have. In addition to the frequency response, a phase response chart may also say a good deal regarding the functionality as well as audio quality of the amplifier. You furthermore may need to look at the conditions under which the frequency response was measured. You normally will not find any details about the measurement conditions, however, in the producer's data sheet. Typical speaker impedances vary from 2 to 16 Ohms. The lower the speaker impedance the greater the load for the amp.
Mainly contemporary digital or "Class-D" amps can have changes in the frequency response with different loads. Usually the lower the loudspeaker load impedance the lower the upper cut-off frequency of the amp
Various mini amps available from Amphony include feedback in order to compensate for changes in gain caused by different connected loads.… Read the rest Read more
I will take a look at a number of mini stereo amps and clarify some fundamental language to help you select the ideal amp for your speakers
There is a flood of different audio amps available which all differ in their specifications, shape and size. You dont have to be a guru. Various amps are rack sized. Harmonic distortion refers to how much the audio signal is degraded while being amplified. This term is frequently used while comparing the audio quality of amplifiers.
An audio distortion of up to 10% is usual for tube amplifiers whereas solid-state amps have less audio distortion depending on the particular technology. The most traditional amplifiers utilize a “Class-A” and “Class-AB” technology. Audio amplifiers which are based on these technologies usually have low harmonic distortion. Furthermore, this technology is relatively inexpensive. Though, the downside is that the power efficiency is only in the order of 20% to 30%. Amps with low power efficiency will need relatively big heat sinks since the majority of the power is radiated. In a small listening environment, you might not require to drive your loudspeakers to their rated value. Usually a low-impedance loudspeaker will be less difficult to drive to high volume than a high-impedance speaker.… Read the rest Read more