ARCAM Radia SA45 Class G Streaming Integrated Amplifier with Dirac Live
ARCAM Radia SA45 Class G Streaming Integrated Amplifier with Dirac Live
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The ARCAM Radia SA45 is ARCAM's premium all-in-one stereo streaming amplifier, combining 180W-per-channel Class G power, an ESS Hyperstream IV conversion platform and Dirac Live room correction. Fully balanced analogue and digital signal paths are designed to support a highly capable modern two-channel system.
The large 8.8-inch display puts music metadata and artwork front and centre. A balanced XLR input, MM/MC phono support and HDMI eARC accommodate a wide variety of sources, while network streaming includes Spotify, TIDAL, Qobuz, AirPlay, Google Cast and Roon. Dual subwoofer outputs add flexibility for room integration.
Why choose the ARCAM Radia SA45?
- 2 × 180W Class G amplification
- Balanced analogue and digital audio architecture
- ESS Hyperstream IV DAC platform
- Dirac Live with dual subwoofer outputs
- 8.8-inch full-colour display
- XLR, MM/MC phono, HDMI eARC and popular network-streaming services
ARCAM SA45 – Technical Specifications
| Amplifier class | Class G (5th generation) |
|---|---|
| Continuous output, 8Ω | 2 × 180W (20Hz–20kHz, 0.5% THD) |
| Continuous output, 4Ω | 2 × 300W (1kHz, 0.5% THD) |
| Analogue line inputs | 3 stereo RCA pairs + 1 balanced XLR pair |
| Phono inputs | MM and MC |
| Digital inputs | HDMI eARC, 2 coaxial, 2 optical |
| Network streaming | AirPlay, Google Cast, Spotify Connect, TIDAL Connect, Qobuz Connect, Roon Ready |
| Streaming resolution | Up to 32-bit/384kHz; DSD256 |
| Room correction | Dirac Live |
| Subwoofer outputs | 2 |
| Wireless | Wi-Fi 2.4/5GHz; Bluetooth 5.4 with Snapdragon Sound and Auracast |
| Display | 8.8-inch high-resolution colour screen |
| Dimensions (W × D × H) | 432 × 390 × 140mm |
| Net weight | 17kg |
Why choose the flagship streaming amplifier?
The SA45 combines powerful Class G amplification with a balanced audio architecture, high-resolution DAC, integrated network player and a large 8.8-inch display. It is an option for a serious stereo system without the extra boxes of separate amplification and streaming.
How can it adapt to the room?
Dirac Live correction and two subwoofer outputs provide tools for bass integration and listening-room adjustment. They complement, rather than replace, sensible loudspeaker and seating placement.
ARCAM SA45 – Frequently Asked Questions
Can the SA45 handle vinyl?
Yes. It includes MM and MC phono connectivity for compatible cartridges, together with balanced XLR and RCA analogue inputs.
Does it have streaming services built in?
Yes. Its network music system supports compatible Spotify, TIDAL, Qobuz, AirPlay, Google Cast and Roon playback.
Our Advice at Kronos AV
An SA45-versus-SA35 comparison should start with the loudspeakers, room and sources you actually own. A separate A50 Signature and ST25 can also be worth considering.
Our team can help confirm system compatibility, source connections and suitable loudspeakers before purchase.
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