The A25 Plus is the flagship of Arcam's Radia integrated amplifiers and the only model in the line to use the brand's efficient Class G amplification. It is the most feature-rich and capable amplifier in the range.
Delivering 100 watts per channel of Class G power, it pairs an ESS9018 DAC with HDMI eARC, a USB-C input and a glass-fronted OLED display designed to match the ST25 streamer, along with a moving-magnet phono stage.
| Type | Integrated amplifier |
| Power output | 100 watts per channel into 8 ohms |
| Amplifier class | Class G |
| DAC | ESS9018 |
| TV connection | HDMI eARC |
| Digital inputs | Coaxial, optical, USB-C |
| Phono stage | Moving magnet |
| Display | Glass-panel OLED |
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