The Vanguard incorporates a 200-watt-per channel amplifier and a Class A pre-amplifier, enclosed in a chassis that borrows its design and construction from the new Krell Foundation pre-amp/processor, Connect stream player, Illusion pre-amp and iBias amplifiers. An optional, field-install able digital module with USB, HDMI, coaxial, and optical inputs as well as Ethernet audio and Bluetooth streaming will also be available.