ARCAM Amplifiers Boost Performance and Connectivity with New Radia+ Series at CEDIA Expo 2025

Explore how ARCAM’s Radia+ amplifiers elevate hi-fi with upgraded circuits, Bluetooth 5.4, and HDMI eARC for exceptional sound and seamless connectivity.

A Fresh Wave of Hi-Fi Excellence Hits CEDIA Expo 2025

If you’re a music lover who thrives on crisp sound and seamless connectivity, the latest from ARCAM amplifiers will make your ears perk up. The British hi-fi innovator, known for pushing the boundaries of audio engineering, is back with their revamped Radia Series—the A5+, A15+, and A25+ integrated amplifiers. Making their North American debut at CEDIA Expo 2025 in Denver, these powerhouses blend refined design and smart tech upgrades that promise to transform your listening experience.

This trio builds on the popular Radia foundation that first wowed audiophiles back in 2023. After an expansion in 2024 with new streaming amplifiers, ARCAM’s engineers didn’t rest—they’ve gone further, enhancing circuitry, components, and power management to deliver cleaner sound and smarter connectivity.

Next-Level Performance and Smarter Connectivity

What’s the secret sauce behind these new Radia+ amplifiers? It’s a mix of hardware tweaks and clever software magic. ARCAM has embraced Bluetooth 5.4 across the lineup, integrating Snapdragon Sound for lossless CD-quality streaming, plus LE Audio and Auracast for those wireless one-to-many listening sessions—think parties or multi-room setups without the hassle of pairing every device.

The mid-tier A15+ and flagship A25+ have upgraded their HDMI game with eARC support, perfect for effortlessly syncing with your TV’s audio. This means you can finally ditch your separate sound system setup and enjoy immersive sound through your Radia+ amplifier with ease.

The A25+ especially shines with its Class G amplification delivering 2x100W power—more muscle for larger rooms or demanding speakers. A precision-cut glass front panel not only looks sleek but enhances the crispness of its vibrant OLED display, matching its ST25 streaming companion in style.

Ingenious Engineering for Purity in Sound

Digging under the hood, ARCAM’s engineers tackled noise reduction like pros. The A15+ and A25+ utilize upgraded transformers that reduce unwanted electrical currents inside the chassis, while the A5+ benefits from refined components that lower interference on the circuit boards. The A25+ also sports an ESS9018 DAC dedicated to SPDIF inputs, ensuring pristine audio fidelity for digital sources.

One clever move is the smart power management that selectively shuts down idle circuits—if you're using an analog input, the DAC PCB powers off; disable HDMI or Bluetooth, and those modules enter low power mode; even the trigger input rests when unused. This attention to detail slashes noise and amps up clarity.

“With the A5+, A15+, and A25+, we’ve taken everything people love about the Radia amplifiers and pushed performance to the next level. From the upgraded circuitry and next-generation Bluetooth to the expanded connectivity, every change enhances the user experience.” – Jim Garrett, Senior Director, Product Strategy and Planning at ARCAM and HARMAN Luxury Audio

It’s a masterclass in blending legacy and innovation.

Meet the Radia+ Family: Models and Features

Here’s a quick rundown of what each Radia+ model brings to the table:

• A5+: A fantastic entry-level choice for premium hi-fi, packing 2x50W Class AB power. It boasts a wide range of digital and analog inputs, including a finely tuned MM phono stage. Bluetooth 5.4 with Auracast and Snapdragon Sound elevate wireless listening. MSRP: $1,199.95.
• A15+: Stepping up with 2x80W Class AB amplification, this model is perfect for bigger rooms and tower speakers. It includes HDMI eARC for flawless TV audio and all the wireless perks of the A5+. MSRP: $1,499.95.
• A25+: The flagship model flexes 2x100W Class G power, adds a dedicated ESS9018 DAC for SPDIF inputs, USB-C input, HDMI eARC, and an OLED display behind a sleek glass panel. MSRP: $1,999.95.

A Legacy Continues with Timeless Sound

With nearly five decades of audio innovation rooted in Cambridge, ARCAM continues to impress with the Radia+ lineup. These amplifiers exemplify the brand’s passion for engineering precision and delivering sound that captivates listeners for years to come.

The A5+, A15+, and A25+ hit the CEDIA Expo floor in Denver, Booth #2512 from September 3 to 6, 2025, with shipments starting early in Q4 2025. For audiophiles wanting to future-proof their systems, these amps offer a compelling blend of classic ARCAM warmth, modern connectivity, and thoughtful design.

What Does This Mean for Music Lovers?

In a world where streaming and wireless dominate, ARCAM’s Radia+ series strikes a fine balance between fidelity and convenience. Whether you’re spinning vinyl on the A5+, streaming hi-res files through the A15+, or basking in the power and nuance of the A25+, these amplifiers are built for how we enjoy music today—and tomorrow.

FAQ

• What improvements do the Radia+ amplifiers have over their predecessors?
  Upgraded circuits, Bluetooth 5.4 with Snapdragon Sound, Auracast support, HDMI eARC on A15+ and A25+, refined power supplies, and noise reduction features.
• Which Radia+ model is best for large rooms or tower speakers?
  The A15+ with its 2x80W Class AB power offers more muscle, making it ideal for bigger spaces and larger speaker setups.
• Does the A25+ support digital inputs?
  Yes, it has an ESS9018 DAC dedicated to SPDIF inputs and also features USB-C and HDMI eARC connectivity.
• How does the new Bluetooth 5.4 improve the listening experience?
  It supports bit-perfect CD-quality streaming via Snapdragon Sound, LE Audio for improved efficiency, and Auracast for seamless one-to-many wireless playback.
• When will these amplifiers be available to purchase?
  The Radia+ series will start shipping early in the fourth quarter of 2025, shortly after their CEDIA Expo debut.

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