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the HiFi Rose RA180 is a next generation Gallium Nitride FET Applied Class AD Amplifier. In HiFi Rose’s own words, ‘In terms of power amplifier design, Class D is theoretically a topology that provides a completely linear output at 0% distortion and 100% power efficiency. To achieve the perfect Class D design theory, the switching operation speed and accuracy must be secured. To improve this problem, RA180 implemented a perfect linear output by applying a Gallium Nitride FET instead of a Silicon FET to dramatically improve the Dead Time, which affects switching speed and accuracy, to less than 1/10. The perfect linear output goes beyond the existing Class D limits and creates a natural sound like an analogue amplifier.’ Next-generation Class AD (Advanced D) amplifier design with 800W output Gallium Nitride FETs in the amplification stage deliver perfect linear output Four amplifier modules to support Bridge Tied Loads or Bi-Amping speaker connections Frequency range spans up-to 100kHz to deliver a wide and deep sound stage Separate outputs for two sets of stereo speakers Built-in moving magnet and moving coil phono stage with simple switch selection Phono stage has adjustable EQ to accommodate any vinyl record with faithful reproduction ✓ Active crossover for high frequency output to support Super Tweeter frequencies Tonally flat output design, complemented by Bass and Treble tone controls Bypass Power Amp mode suits more complex system configurations Purpose-designed high-efficiency power supply with Silicon Carbide FET technology Distinct, retro-industrial aesthetic with high-purity aluminium construction in silver finish ✓ Dimmable VU meters IR remote control and wi-fi control (via RoseAmpConnect app) included