HiFi Rose | RA180

Reference Integrated Amplifier and Preamp w/ GaN FET Class AD topology, Balanced Power Supply, MM/MC Phono stages Built-in, Variable EQ Tone Control, Level Meters, Motorized Remote Control via IR, Subwoofer Out & Active Crossover   Reference Integrated Amplification Evolved New Concept Advanced Class D Amplifier Amplifiers have changed from Class A to AB and Class D. The high heat and low efficiency of Class A required a new design, so Class AB was developed. However, Class D has even higher efficiency and higher output than Class AB. It also has dramatically improved the Signal-to-Noise ratio and Total Harmonic Distortion Characteristics over Class A and AB. However, despite these advantages, due to the limitations of digital circuits, the sound quality has been evaluated as poor compared to A/AB. The GaN (Gallium Nitride) Advanced Class D amplifier developed by HiFi ROSE is an innovative new product. Dramatically improving on the problems of Class D. Harmonized Design by upper-c