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Let's clear all the confusion about phase
The electrical phase and phase of an amplifier has absolutely NO RELATION to each other. They are as related to each as the color of walls in your apartment and temperature of the water in your taps. They might both influence the quality of your apartment but that is about it.
Overall “phase” is always an expression of time – the time at which the signal arrives. Correct phase response in speakers means that all drivers fire at the same time and in the same direction (all going forward or all going backward) when you input a full frequency signal. If they don’t, it is not in correct phase. Signal phase is important because when we used to live in the wild hearing phase (direction), human beings could detect the difference between life and death so we must be optimized to hear correct phasing.
In standard AC the phase can either be 0 degree or reverse (180 degree). Imaging a wave that goes up and down 50 times each sec around zero like AC does (A sinus curve). You can reverse (around the zero point) this curve by switching the Hot and neutral in the power cable. We want all the electronics receive power at the same time. What you want is to have all of your electronics running in the same phase. That should make things sound better. You have to experiment with this because NOT ALL electronics are connected in correct phase (inside the device)! THIS IS THE MOST TRICKEST PART!
The PHASE of an amplifier is determined by "the NUMBER OF GAIN STAGES" AND has absolutely NOTHING to do with the phase of the wall electricity. Each gain stage reverse the phase. So an amplifier with 2 gain-stages reverses the phases 360 degrees making the signal in correct phase again. Some manufactures making amplifiers with an uneven amount of gainstages switches the wire going to the speaker terminals to make sure the signal is in correct phase.
Overall “phase” is always an expression of time – the time at which the signal arrives. Correct phase response in speakers means that all drivers fire at the same time and in the same direction (all going forward or all going backward) when you input a full frequency signal. If they don’t, it is not in correct phase. Signal phase is important because when we used to live in the wild hearing phase (direction), human beings could detect the difference between life and death so we must be optimized to hear correct phasing.
In standard AC the phase can either be 0 degree or reverse (180 degree). Imaging a wave that goes up and down 50 times each sec around zero like AC does (A sinus curve). You can reverse (around the zero point) this curve by switching the Hot and neutral in the power cable. We want all the electronics receive power at the same time. What you want is to have all of your electronics running in the same phase. That should make things sound better. You have to experiment with this because NOT ALL electronics are connected in correct phase (inside the device)! THIS IS THE MOST TRICKEST PART!
The PHASE of an amplifier is determined by "the NUMBER OF GAIN STAGES" AND has absolutely NOTHING to do with the phase of the wall electricity. Each gain stage reverse the phase. So an amplifier with 2 gain-stages reverses the phases 360 degrees making the signal in correct phase again. Some manufactures making amplifiers with an uneven amount of gainstages switches the wire going to the speaker terminals to make sure the signal is in correct phase.
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