Received the Zesto Leto and have been listening a few days. Incredible sounding, dynamic but has great detail, rhythm and pace. Actually sounds like I got a whole new system, it's staggering. I needed a little help from Zesto and they are first class all the way. Its great that I can use balanced gear with it too. Best bass of any preamp I've used or owned . Amazing clarity.... zero self noise. Hit pause and turn it up louder than you would normally listen and still, black dark silence . Worth every penny .