| Point | Voltage | |-------|---------| | PFC output | ~380–400V DC | | Main ± rails | ±65V to ±95V DC (depends on load) | | Aux supply | +15V, -15V, +5V | | Output DC offset | < ±50 mV | | Gate drive (low-side) | ~12V relative to source | | Gate drive (high-side) | 12V + V_BUS (floating) |

Diagram | Nx Audio Rx 4000 Circuit

| Point | Voltage | |-------|---------| | PFC output | ~380–400V DC | | Main ± rails | ±65V to ±95V DC (depends on load) | | Aux supply | +15V, -15V, +5V | | Output DC offset | < ±50 mV | | Gate drive (low-side) | ~12V relative to source | | Gate drive (high-side) | 12V + V_BUS (floating) |