art pro vla: tube leveling amp (compressor). vca-less design provides terrific musical performance. provides superior dynamics control for every compression application. variable threshold, ratio and output controls. smooth, silky and transparent sound quality. variable input and output gain controls. professional backlit vu. input/output level metering. ten segment gain reduction led array. xlr and 1/4" inputs and outputs. mastering quality audio processing. mint condition.buyer pays shipping. paypal. also have art pro mpa mic pre. see other ads on this board.