The ST25 is built around ARCAM's new six-layer digital audio and streaming platform, developed to minimize noise and interference throughout the signal path. A dedicated ground plane extends across the entire board design, helping protect sensitive audio circuitry and preserve signal integrity.
Digital conversion is handled by the latest ESS Hyperstream IV DAC topology operating in a balanced configuration with advanced jitter elimination. Combined with a newly developed linear toroidal transformer power supply, the ST25 is designed to achieve exceptionally low noise levels and improved overall musical performance.
A bonded 6.5-inch high-resolution display provides clear visibility of album artwork and playback information from across the room. Streaming support includes Apple AirPlay 2, Google Cast, Spotify Connect, TIDAL Connect, Qobuz Connect, Amazon Music, and Roon, offering compatibility with a wide variety of music services and playback ecosystems.
The ST25 also incorporates ARCAM's Radia control link, allowing seamless integration with compatible Radia amplifiers such as the A25+. By combining dedicated streaming hardware, a premium DAC implementation, and isolated power supply architecture, the ST25 serves as a high-performance digital source for modern two-channel audio systems.
- DAC: ESS Hyperstream IV
- DAC Resolution: Up to 32-bit / 384kHz PCM
- DSD Support: Up to DSD256
- Network Connectivity: Wi-Fi 6 (802.11ax), Ethernet
- Streaming Services: Spotify Connect, TIDAL Connect, Qobuz Connect, Amazon Music
- Streaming Protocols: Apple AirPlay 2, Google Cast
- Roon Ready: Yes
- USB Input: USB-A
- Analog Outputs: Stereo RCA
- Digital Outputs: Optical, Coaxial
- Display: 6.5" High-Resolution Color Display
- Control: ARCAM Radia App
- Dimensions (W x D x H): 432 x 329 x 99 mm
- Weight: 5 kg