Components of the Hi-Fi 2 by HAI are modular, giving flexibility for expansion as needs change.
Hi-Fi 2 uses Class D digital amplification. The zone amplification is 25 Watts RMS at 8 Ohms per channel (50 Watts per zone). Two variable outputs (zones 1 and 8) are provided for connection to external power amplifiers and a page/mute input.

Hi-Fi 2, 8 Zone-8 Source Kit with Universal Mounting Plate. Includes 8 Inputs and 4 RIMs (Remote Input Module); use all 8 Inputs or 4 Inputs and 4 RIMS or any combination up to a total of 8 Inputs/RIMS. Also includes 8 OLED Display VSCs with digital controls (Volume Source Control). Expandable to 16 zones using Expansion Amplifier Kit [sold separately]