Arcam Radia Series: New AV Amps, Speakers & Home Cinema Tech
- Arcam has expanded its Radia series of audio components with new integrated amplifiers, streaming amplifiers, and loudspeakers, initially unveiled at September 2025's CEDIA Expo.
- The Radia+ series consists of three integrated amplifier models: the A5+ ($1,199.95), A15+ ($1,499.95), and A25+ ($1,999.95).
- All three models share similar dimensions – 16.97 x 13.54 inches – with slight variations in height (3.27 inches for the A5+ and A25+, and 3.86 inches for...
Arcam has expanded its Radia series of audio components with new integrated amplifiers, streaming amplifiers, and loudspeakers, initially unveiled at ‘s CEDIA Expo. The updated Radia+ integrated amplifiers – the A5+, A15+, and A25+ – build upon the foundation of the original Radia series launched in , offering upgraded circuitry, refined components, and enhanced Bluetooth capabilities.
Radia+ Integrated Amplifiers: A Step Up
The Radia+ series consists of three integrated amplifier models: the A5+ ($1,199.95), A15+ ($1,499.95), and A25+ ($1,999.95). These represent improvements over the original A5, A15, and A25 models. All three utilize Class AB amplification, with the A25+ employing a Class G amplification stage. The A5+ delivers 50 watts of power at 8 ohms and 75 watts at 4 ohms, with a total harmonic distortion of 0.003%. The A15+ outputs 80 watts at 8 ohms and 120 watts at 4 ohms, achieving a distortion rate of 0.002%. Finally, the A25+ provides 100 watts at 8 ohms and 165 watts at 4 ohms, also with 0.002% harmonic distortion.
All three models share similar dimensions – 16.97 x 13.54 inches – with slight variations in height (3.27 inches for the A5+ and A25+, and 3.86 inches for the A15+). Weights are 18 lb (A5+), 22 lb (A15+), and 19.8 lb (A25+). The upgrades focus on enhancing performance through improved internal components and power management.
Expanding the Radia Ecosystem
The Radia series initially debuted in and saw expansion in with the addition of a streamer and two streaming amplifiers. The latest additions, including the Radia+ integrated amps, aim to provide a comprehensive range of audio solutions. Arcam has also introduced a new line of Radia loudspeakers designed for both music enthusiasts and home cinema applications. These speakers represent Arcam’s return to the loudspeaker market.
New Technologies and Features
The new Radia+ amplifiers incorporate next-generation Bluetooth technology, including support for aptX Lossless Bluetooth. The amplifiers also feature HDMI connectivity. ARCAM has integrated Dirac Live ART into the Radia series to enhance home cinema performance. Dirac Live ART is a room correction technology designed to optimize audio output based on the specific acoustics of a listening environment.
Design and Aesthetics
Arcam’s Radia series is characterized by a new design language that the company introduced in . The aesthetic has been well-received, and the Radia+ models continue this design direction. The company describes the Radia series as setting a new standard for its entry-level Hi-Fi components.
Availability and Context
The Radia+ integrated amplifiers were first showcased in North America at ‘s CEDIA Expo. Arcam is a British audio brand now under the Harman International Industries umbrella, which is itself a subsidiary of Samsung. The Radia series aims to blend advanced streaming technology with Arcam’s decades of experience in audio engineering. The series caters to a market seeking premium sound quality and value for money.
The Radia ST25 streamer, SA35, and SA45 streaming amplifiers are also part of the broader Radia lineup, offering a range of options for building a complete audio system. Arcam offers a variety of product ranges, including Solo, HDA, FMJ, and the Radia series, as well as a selection of discontinued products.