Marantz MM9000 Power Amp

At a Glance

The MM9000 is a 5‑channel, THX Ultra–certified power amplifier from the late 1990s that delivers a beefy 150 watts per channel into 8 ohms with the kind of warm, solid character Marantz was known for in that era. Built around a large toroidal transformer and a robust Class‑AB output stage, it has the headroom to drive demanding home‑theater speakers without strain, and its sound is smooth, dynamic, and authoritative. It louds or whispers equally well. The unit includes input level trims, 5-way binding posts, and both trigger and signal‑sensing auto‑power features, all wrapped in a chassis that weighs over 40 pounds—an indicator of power supply quality and plenty of heatsink capacity.Read More