HiFi Rose RA280

The RA280 is an integrated amplifier that inherits the innovative technologies used in RA180. Enjoy pure natural sound as close to the original sound as you can get with the RA280: a near-perfect sound that transcends the boundaries between digital and analog technologies with excellent linearity achieved through strong power damping and short dead time. The RA280 offers a special listening experience that lets you feel the true essence of music.

The RA280 is designed with two separate amplifier modules that function as a mono amplifier, supporting 250 W (4 Ω and 8 Ω) for the left and right amplifiers respectively, producing 500 W on one stereo channel. The RA280 uses two-stage analogue filter technology designed by HiFi ROSE to achieve the best possible sound quality. HIFI ROSE's LC filter provides excellent frequency response by offering -1dB attenuation in the frequency band up to 65kHz and -3dB attenuation in the range up to 85kHz. This technology significantly reduces the inherent carrier noise caused by switching in Class D amplifiers, providing furthermore clearer and crisper sound quality in all bands. Soundstage and resolution have been greatly enhanced, creating a modern sound with an analogue twist.

The RA280 also makes active use of the latest technologies when it comes to its power supply, thanks to a circuit developed in-house by HiFi Rose. This circuit is based on silicon carbide FETs instead of silicon FETs. The silicon carbide FET is a high-voltage, high-temperature-resistant power semiconductor device. It has a higher efficiency and generates less heat than a silicon FET, ensuring optimum power supply. Thanks to its innovative design of materials and structure, the RA280 delivers stable high power while minimising heat generation to provide the best sound quality. In addition, the RA280 applies a 2.5 kW power factor correction (PFC) circuit, also designed in-house by the brand, and introduces a high-capacitance capacitor to maintain excellent performance even in fast-load situations, giving a better response in terms of stability and reliability.

In addition to its dual mono amplification stage, the Rose Hifi RA280 also features a phono preamplifier compatible with moving magnet (MM) cartridges. This means you can connect a turntable with compatible cartridge and take advantage of the high-precision compensation circuit developed by HiFi Rose to reproduce sound as close as possible to the original, ensuring rich, vibrant sound without distortion.