So ... we built a set of led diodes into some patch cables - y'know ... so you can set your music and audio alight and run it (literally!) through some fire! They sound great and make audio just that little bit more beautiful, engaging and 3d interesting at lower settings (we use Logic's i/o utility for this) - but pump Up the volume and you can achieve some of the most Divine Distorto Energy on this planet or any other! They're gorgeous, and out-play (in our opinion) much (much!) more expensive studio units. Run vocals - drums - basses - synths and full mixes through them either in series or parallel to raise the shimmer - then try them after reverbs and other time delay fx - superb!! Also - as clippers they're really tasty before compressors or limiters - and yeah - they walk all over anything in flat, bland plugin world (ugh). Put some real analog in that mxing / mastering chain!