The circuitry and craftsmanship that go into a home theatre receiver makes all the difference in the sound quality it produces. With the right technology inside, you can enjoy a deep, immersive experience that captures every nuance of your favourite movies and music alike. The Hyper Dynamic Amplifier Modules (HDAMs) incorporated into Marantz Hi-Fi components, for example, contribute to the superior performance of Marantz technology, setting these products apart for decades. Marantz sound engineers developed the HDAM solution to overcome their dissatisfaction with existing operational amplifier solutions. These types of amplifiers are versatile, reliable and inexpensive, but they also have serious limitations. Noise and a low slew rate — a measure of the rate of change in current over time — can greatly detract from the resulting sound quality, especially at higher frequencies. The HDAM outperforms the op-amp solution, since it has high speed, keeps the audio signal clean and is tuned for the best sound performance. As a result, the music sounds fresh and alive, rich and more dynamic, with accurately reproduced high-frequency details.