It features a 1U Class D output circuitry.
The amplifier has 2 channels, CH1 and CH2, with individual level controls and a small display screen.
It operates within a global input voltage range of 90v-265v.
The power output for the Yamaha-NX21000 model is rated at 1000W per channel at 8Ω and 1500W per channel at 4Ω.