adrianw wrote:No, I understand why you might be concerned but I would not expect that to cause any audio problem.
organsRgreat wrote:There seems to be some confusion here between the phases of audio signals, and those of the mains power supply; but I cannot see that the two would be related. For mains power to be used by an amplifier it needs first to be rectified, and DC power, being continuous, cannot have a phase.
Thank you, that is what I expected.
adrianw wrote:However calculating the power demands of audio amplifiers for electrical supply purposes is not as straightforward as it may seem and your estimate of the total power demand (on which your electrician is presumably making his suggestions for phase distribution) might be unrealistic. If it were watt-for-watt, stadium concerts with their hundreds of kW of audio amplification would simply not be possible. You will be spending quite a bit of money and should get specialist advice.
organsRgreat wrote:the correspondence between mains power and speaker output power is not as simple as a one-to-one conversion.
I know that audio wattage is not (always) the same as electrical wattage. I took power consumption values from datasheets and product documentations. For Definitive Technology integrated subs, the retailer has told me to consider 300 W per tower as the internal Class D amplifier has an almost 1:1 power transfer ratio.
Of course I expect the effective power consumption to be much lower than the one obtained with my calculations, as all the equipment will not be run at its maximum ratings.