Dual chassis design, with the first housing the power supply, digital control circuitry, processor software and LED display. The other only houses audio circuitry.
Power supply voltage regulation includes i2DCf (inductive DC filtering); one inductor each and IC in the signal circuitry - 40 stages in total.
Offset gain adjustment of ±10dB for each line input.
Each line input is fully configurable, ready for home theater integration, while the 850P's volume control features a bypass.