WM8816/MAS6116 Balanced Digital Volume Control Board with Ground Sensing (PCB only, no parts)

High performance active volume control with balanced differential input and ground-sensing output (goodbye cross-channel ground loops!). It can serve as: Part of an integrated amplifier (great with LM3886 or similar chipamp based power stages); With an input selector, a high performance balanced line stage or a minimalist analog preamp; An output stage for a DAC to form a "digital preamp". This board uses the WM8816 or MAS6116 for adjusting volume. The WM8816 was a high quality digital volume control from Wolfson (now part of Cirrus Logic). The chip has been used in successful commercial products such as the Marantz SC7S1 and SC7S2 control amplifiers. The MAS6116 is a chip currently manufactured by MAS Oy that is pin- and function-compatible with WM8816. Also available digitally controlled variants based on MUSES72320 or PGA2310, as well as analog variant with a dual linear potentiometer. Bare board only. Parts are not included and need to be obtained separately. Assembly is require