Agree with Runwell.... I just bought a Zesto Leto , it was NIB leftover but never sold. I paid $3500, worth every penny. I would look for something out of your reach new that you can afford used . That Zesto made it sound like I literally got a new system the upgrade was so night and day. It was not subtle!!! The preamp is the heart of a good system and one of the best places to put your money.