I contacted both MLevinson support, and they inform me to contact the ML distributor to Portugal, the company Genesis Technologies Iberica, but I didn't receive any reply from this company.
From the PS Audio I receive reply from Paul McGowan, and this was our conversation:
At my question, sent, the question of this topic, this the reply:
The P10 Power Plant would be perfect to make certain the voltage reaching the amplifiers is always 230 and to protect and improve their performance.
The solution was 1 P10 for Both amplifiers or 1 for each amplifier?
And the other components? Cd PlayStation, record Player, pre- amplifier?
Each amplifier consumation was 560w
Again Paul reply:
You could use just one P10 but you'd be better off with 2. You can use the P10 to power the other units as well.