ARCAM Radia A25+ Class G Integrated Amplifier with USB-C and HDMI eARC
ARCAM Radia A25+ Class G Integrated Amplifier with USB-C and HDMI eARC
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The ARCAM Radia A25+ is a feature-rich stereo integrated amplifier with ARCAM's fifth-generation Class G topology, giving music listeners 100W per channel into 8Ω alongside flexible analogue and digital connectivity. It combines the brand's carefully developed amplification with a built-in ESS DAC and useful inputs for a television, computer and turntable.
The USB-C audio input can accept supported high-resolution computer audio, while HDMI eARC simplifies compatible TV connections. Bluetooth 5.4 with Snapdragon Sound and Auracast provides additional listening options.
Why choose the ARCAM Radia A25+?
- Fifth-generation Class G amplification
- 100W per channel into 8Ω; 165W into 4Ω
- HDMI eARC and USB-C audio inputs
- ESS ES9018 DAC
- MM phono stage
- Bluetooth 5.4, Snapdragon Sound, Auracast
ARCAM A25+ – Technical Specifications
| Amplifier class | Class G (5th generation) |
|---|---|
| Continuous output, 8Ω | 2 × 100W (20Hz–20kHz, 0.5% THD, both channels driven) |
| Continuous output, 4Ω | 2 × 165W (1kHz, 0.5% THD) |
| Harmonic distortion | 0.002% (80% power, 8Ω, 1kHz) |
| Analogue inputs | 3 stereo RCA pairs |
| Phono input | MM; 47kΩ + 100pF |
| Computer input | USB-C audio, up to 32-bit/384kHz |
| TV connection | HDMI eARC / ARC |
| Other digital input sampling | Up to 24-bit/192kHz |
| Bluetooth | 5.4, Snapdragon Sound, aptX Lossless, Auracast |
| Dimensions (W × D × H) | 431 × 344 × 83mm |
| Net weight | 9kg |
| Power consumption | 500W maximum; under 0.5W standby |
What makes ARCAM Class G different?
The A25+ uses ARCAM's fifth-generation Class G amplification to respond efficiently to changing musical demands. It is rated at 100W per channel into 8 ohms under ARCAM's specified conditions, but amplifier-and-speaker compatibility matters more than headline wattage alone.
How does it accommodate modern sources?
Alongside an MM phono input, the A25+ offers HDMI eARC for a compatible television and USB-C for suitable computer audio. Its built-in DAC handles compatible digital sources, with Bluetooth 5.4 for wireless convenience.
ARCAM A25+ – Frequently Asked Questions
Can I connect a laptop directly?
Yes. A compatible computer can connect via USB-C, with support up to 32-bit/384kHz according to the manufacturer.
Does it replace a network streamer?
No. Bluetooth is distinct from a built-in Spotify Connect or Roon network-streaming platform.
Our Advice at Kronos AV
Compare it with the A15+ using your intended loudspeakers, listening volume and source connections rather than assuming one amplifier suits every system.
Our team can help confirm system compatibility, source connections and suitable loudspeakers before purchase.
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