You see and feel it in the build quality and you hear it every time. No matter your musical passions, your music always sounds better with MODEL 30. Hundreds of hours of thoughtful Sound Master tuning ensure the exquisite detail and musicality Marantz always delivers. Marantz HDAM-SA3 technology is comprised of dozens of independent parts, each hand-selected for pure, detailed Marantz sound. Designed to replicate the sensitivity and feel of a vintage analog amplifier even when simply adjusting the volume.