What is HDAM and why does it matter?
Both the SR and AV Marantz lines contain the Hyper Dynamic Amplifier Module or HDAM that can function in several capacities and are a key feature that separates Marantz from its competitors. Marantz developed its own discrete circuit boards to replace standard IC's. These HDAM's consists of discrete surface mount components with short mirror image L/R signal paths. Those devices are doing exactly the same thing as the Op-Amps, but outperform the regular IC Op-amps dramatically in terms of the Slew Rate and reduced noise level, resulting in a much more dynamic, accurate and detailed sound. Over the years Marantz developed different types of the HDAM to improve quality and to fit to the special requirements of a product category like CD or amplifier.
What does all this technical jargon mean to you? It means that your Marantz product will reproduce your music and movie soundtracks as close to what the musicians and sound mixers intended, through an open and clear sound stage. The sound will fill the room, your speakers will disappear, and you will be fully immersed in the song or movie soundtrack!
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Because Sound Matters!