Anyone who powered speakers are used as monitor system in a studio, knows the problem: how to control the volume? It just does not work because the software and the audio card offer no viable option. At the loudspeaker itself it does not go, since the regulator on the back are.
Just then you need the Nano Patch + ... that part is packed between monitor speakers and audio interface features a large beautiful controller, which does exactly what it should: adjust the level continuously, fast and always accessible.
A great part!