Fully discrete and differential amplifier Emotiva XPA-1 has 12pcs 10,000µF/63V capacitors, while I think it's maximum operation voltages are something like 100V. With 8 ohm load the maximum output is approx 600W/0,1-0,2% distortion, which means approx 1000-1100 watts of power draw from the wall, which equals approx. 90-92V voltage.

In order to cope with the voltage requirements, the capasitors could be wired in series-parallel combination, that would double their voltage rating and drop the capacitance rating to 30,000µF. But is this needed in differential amplifier?

So my questions are:

**1)**Does the differential amplifier (which has two amplifier boards, one wired to black speaker posts and one wired to red speaker posts,) mean that while the other amplifier goes into positive the other amp goes into negative, and by this they create a total of double the potential difference than a non-differentian amp would create? So if both amp's filter capacitors are run in 50 volts, the total potential difference is 100 volts? If my logic is correct, the 63V capacitors are adequate for the job of 100V operation voltages?

**2)**Does each of the amplifier boards see a halved impedance (like in bridged amp), for ex. when driving 8ohm speaker each of the amp boards see a 4 ohm load, or do they both see the full nominal impedance?

Regards,

Legis