【 Weak current College 】 amplifier volume control knob adjustment problems

Our General tuning, first enter the channel mixer adjustment of gain control knob, transferred to the normal input signal, the channel peak led occasionally shining shiny, but less frequently, which aims to take full advantage of the top level of the role of amplification. amplifier
In theory, the fore magnification, contribute to the improvement of signal to noise ratio. Each input channel faders, generally transferred to-3dB to 0dB, rather than the input tuned channel faders ragged. Similarly, the Group output faders and the primary regulation of output faders, in principle, the General is a road in 0dB output level. Various peripheral equipment of regulation principles.
So in General, the power amplifier with volume control buttons are not in the best position, in particular, the regulation to the speaker of the sound pressure level to achieve the required sound pressure level. Some of the power amplifier, the input sensitivity is low, at rated output, its nominal input level to reach + 3dB or + 4dB. At this point, 0dB input will not be able to attain the rated output power amplifiers. In fact, the power amplifier rated input and rated output, refers to a valid value of sine wave, peak factor 1.414 and we play the signal is not a sine wave, for high definition sound reinforcement, its peak factor should ensure ≥ 4, so that the RMS level of the signal than power amplifier rated input level much lower, should be less than or equal to the nominal input level 1/2.83.
In electrical schematics, power amplifier's volume control knob (i.e. volume potentiometer), generally in power amplifier input position, which is in front of the voltage amplifier. Volume potentiometers to voltage amplifier the signal voltage size, that is, the volume potentiometer's role is to be added to the power amplifier input signal voltage takes part to the power amplifier voltage amplifier. Or, on a specific power amplifier, voltage amplification is a fixed value, volume potentiometer does not change the magnification of the power amplifier, just change the practical to the amplifier of signal voltage size.
As such, does not have to pursue certain will power amplifier's volume knob to the maximum position. As you said, the volume knob to the maximum, you may have side effects, once there is no normal impulse signal comes, because of the volume knob is in the best location, will allow the impact signal all add to the amplifier power amplifiers, thereby creating a strong signal to the speakers, causing damage to the speakers.