Acoustic Revive

Close off your leaks – That's the motto of Acoustic Revive's Reality Enhancers aka shorting plugs for unused RCA/XLR i/o. The underlying rationale claims that open plugs act like miniature antennae  for circuit boards and that closing them off improves the overall sound. These Japanese parts use a duraluminum/bronze alloy and include an internal quart resonator to reduce resonances. RCA plugs sell for €525/ea, XLR variants demand €660/ea.