By custom-curating hundreds of individual parts, rather than adopting an off-the-shelf solution, the MODEL 30 HDAM significantly outperforms standard integrated circuits to create the unique musicality you always expect from Marantz.

The design lowers distortion, which is why the phono stage uses two-stage amplification, combining Marantz HDAMs with JFETs in the input stage, giving high input impedance. This allows the non-negative-feedback design to be further simplified by the deletion of coupling capacitors, again reducing distortion and enhancing signal purity.