HARMAN Luxury Audio brand ARCAM is expanding its Radia Series with three new integrated amplifiers — the A5+, A15+, and A25+ — which will make their North American debut at CEDIA Expo 2025, Booth #2512. The new models build on the success of the Radia range introduced in 2023 and extend the company’s engineering focus on performance, noise reduction, and user-friendly features.
Each of the Radia+ amplifiers features upgraded circuitry and components, along with ARCAM’s latest Bluetooth 5.4 platform. Support for Snapdragon Sound with AptX Lossless enables bit-perfect CD-quality wireless streaming, while LE Audio and Auracast expand functionality, including one-to-many wireless playback.
The A15+ and A25+ add HDMI eARC connectivity for direct integration with televisions. The flagship A25+ receives the most substantial update in the series, including a precision-cut glass front panel, a dedicated transformer winding for digital and DAC circuitry, and additional power supply refinements designed to enhance clarity and reduce noise. It also incorporates an ESS9018 DAC for SPDIF inputs.
Meanwhile, the A5+ benefits from component-level adjustments that reduce PCB interference and lower power supply impedance, delivering improved noise performance at the entry-level price point.
ARCAM’s engineers also introduced intelligent power management features that selectively power down unused components. For example, the DAC powers down when an analogue input is active, while Bluetooth and HDMI modules shut off when Autoswitch is disabled. These refinements are designed to reduce the overall noise floor across the series.
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A5+: 2x50W Class AB, MM phono stage, digital/analogue inputs, Bluetooth 5.4 with Auracast. MSRP: $1,199.95.
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A15+: 2x80W Class AB, HDMI eARC, enhanced transformer, wireless features of A5+. MSRP: $1,499.95.
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A25+: 2x100W Class G, ESS9018 DAC, HDMI eARC, USB-C, OLED display with glass front panel. MSRP: $1,999.95.
“With the A5+, A15+, and A25+, we’ve taken everything people love about the Radia amplifiers and pushed performance to the next level,” said Jim Garrett, Senior Director, Product Strategy and Planning at ARCAM and HARMAN Luxury Audio. “These are amplifiers built for the way people enjoy music today, and for many years to come.”
The new amplifiers are scheduled to begin shipping in early Q4 2025.
