HiFi Rose RA280
Integrated amplifier
The RA280 integrated amplifier builds upon the technological advancements of its predecessor, the HiFi Rose RA180, promising a pure, natural sound that blurs the boundaries between digital and analog technologies. Its design ethos prioritizes inner purity, reflected in its solid finish and harmonious integration of interior and exterior elements, enhancing both functionality and aesthetics.
Featuring two separate amplifier modules operating like mono amplifiers, the HiFi Rose RA280 delivers 500W on a stereo channel, employing HiFi Rose's two-stage analog filter technology for optimal sound quality. This technology, exemplified by HiFi Rose's filter, enhances frequency response and reduces carrier noise inherent in Class D amplifiers, resulting in clearer and cleaner sound reproduction with improved spatial description and resolution.
In the realm of Hi-Fi audio, amplifier technology has evolved from Class A and AB to Class D, known for its efficiency and low distortion but often criticized for its inferior sound quality compared to analog amplifiers. To address this, HiFi ROSE developed Class AD amplifier technology utilizing GaN FETs, effectively bridging the gap between digital efficiency and analog sound quality. GaN FETs replace silicon FETs in the RA280, significantly improving linearity by reducing dead time and achieving a switching speed close to zero. This breakthrough allows for smooth, natural sound reproduction akin to analog amplifiers, overcoming the limitations of conventional Class D amplifiers and providing a listening experience that rivals traditional analog systems. Thus, the HiFi Rose RA280 represents a significant advancement in amplifier technology, offering audiophiles a truly immersive and authentic musical experience.
| Measurements | 43 x 10,3 x 35,5 cm |
| Weight (net) | 9.5 kg |
| Digital input(s) | No |
| Input, Stereo RCA | 4 |
| Input, Stereo XLR | 1 |
| Input, Phono pre-amp | Yes, MM compatible |
| Output, LFE (Sub out) | 1 |
| Output, Headphone | No |
| 12v. trigger input | Yes |
| 12v. trigger output | Yes |
| Signal-to-noise ratio | XLR/RCA/Phono: 109dB, 109dB, 85dB |
| Power at 8Ω (per channel) | 250 watts |
| Power at 4Ω (per. channel) | 250 watts |
| A/B Speaker | No |
| Number of channels | 2 |
| Amplifier type | Class A/D |
| In the box | Remote control, Power cable, Users guide |
| User manual available in | English |
| Power consumption when standby | <0.5 watts |