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All Arcam Radia+ Series: A5+, A15+, A25+ Integrated Amplifiers Products

Refined British hi-fi with modern connectivity. The Arcam Radia+ trio steps up performance and convenience with Bluetooth 5.4 (Snapdragon Sound & Auracast), meticulous MM phono stages, and—on select models—HDMI eARC and USB-C for high-res playback. Power everything from compact bookshelves to demanding floorstanders.

Models at a glance

Class A/B

Arcam A5+

Arcam Radia A5+ Integrated Amplifier Side View
  • Power: 2 × 50 W (8 Ω, 20 Hz–20 kHz) · 2 × 75 W (4 Ω, 1 kHz)
  • DAC: ESS ES9018 · S/PDIF up to 24-bit/192 kHz
  • TV audio: Optical input (no HDMI eARC)
  • Phono: MM (47 kΩ + 100 pF)
  • Wireless: Bluetooth 5.4 · Snapdragon Sound · Auracast
  • Size/Weight: 431 × 344 × 83 mm · 8.14 kg
Shop A5+
Authorized dealer · Expert system matching
HDMI eARC · Class A/B

Arcam A15+

Arcam Radia A15+ Integrated Amplifier Side
  • Power: 2 × 80 W (8 Ω, 20 Hz–20 kHz) · 2 × 120 W (4 Ω, 1 kHz)
  • DAC: ESS ES9018 · S/PDIF to 24/192
  • TV audio: HDMI eARC + Optical/Coax
  • Phono: MM (47 kΩ + 100 pF)
  • Wireless: Bluetooth 5.4 · Snapdragon Sound · Auracast
  • Size/Weight: 431 × 344 × 98 mm · 10 kg
Shop A15+
Fast shipping · Local showrooms
Class G · HDMI eARC · USB-C

Arcam A25+

Arcam Radia A25+ Integrated Amplifier Side
  • Power: 2 × 100 W (8 Ω, 20 Hz–20 kHz) · 2 × 165 W (4 Ω, 1 kHz)
  • DAC: ESS ES9018 · USB-C to 384 kHz/32-bit
  • TV audio: HDMI eARC + Optical/Coax
  • Phono: MM (47 kΩ + 100 pF)
  • Wireless: Bluetooth 5.4 · Snapdragon Sound · Auracast
  • Size/Weight: 431 × 344 × 83 mm · 9 kg
Shop A25+
Expert advice · Price match

A5+ vs A15+ vs A25+ — At-a-glance

Specs per amplifier. Values summarized from Arcam published materials.
Spec A5+ A15+ A25+
Power (8 Ω, 20 Hz–20 kHz) 50 W ×2 80 W ×2 100 W ×2
Power (4 Ω, 1 kHz) 75 W ×2 120 W ×2 165 W ×2
Amplifier class Class A/B Class A/B Class G (5th gen)
DAC ESS ES9018 ESS ES9018 ESS ES9018
Digital inputs Coax + Optical (to 24/192) Coax + Optical (to 24/192) + HDMI eARC Coax + Optical (to 24/192) + HDMI eARC + USB-C (to 384 kHz/32-bit)
Phono stage MM (47 kΩ + 100 pF) MM (47 kΩ + 100 pF) MM (47 kΩ + 100 pF)
Wireless Bluetooth 5.4 · Snapdragon Sound (lossless-capable) · LE Audio · Auracast · A2DP sink/source · AVRCP
THD @ 80% power (8 Ω, 1 kHz) 0.003% 0.002% 0.002%
Dimensions (W × D × H) 431 × 344 × 83 mm 431 × 344 × 98 mm 431 × 344 × 83 mm
Weight (net) 8.14 kg 10 kg 9 kg

Need help choosing? Talk to ListenUp or book an in-store demo.

Which Radia+ is right for you?

Compact rooms, vinyl & streaming

Choose A5+

Clean Class A/B power with hi-res S/PDIF and Bluetooth 5.4—great with efficient bookshelf speakers.

Hi-fi + TV integration

Choose A15+

Add HDMI eARC for direct TV connection and a healthy jump in power for larger spaces.

Demanding speakers & headroom

Choose A25+

5th-gen Class G delivers superb dynamics; adds USB-C up to 384 kHz/32-bit for computer audio.

How it works — quick setup

  1. Connect a TV with HDMI eARC (A15+ / A25+): Use your TV’s HDMI (eARC) port, enable eARC/CEC, and set audio to PCM Stereo.
  2. Play high-res from a computer (A25+ USB-C): Connect via USB-C and select up to 384 kHz/32-bit in your OS/player.
  3. Bluetooth pairing & Auracast (all models): Pair normally, or start an Auracast broadcast for multi-listener sessions.
  4. Vinyl-ready: Each amp includes a low-noise MM phono stage—just add your turntable.

Listen & learn more

Explore Arcam at ListenUp

Radia+ — Frequently Asked Questions

Need help matching speakers or a turntable? Talk to a ListenUp expert.

Does the A5+ include HDMI eARC?
No. The A5+ connects to TVs via optical; HDMI eARC is available on the A15+ and A25+.
What’s the main difference between A15+ and A25+?
Both add HDMI eARC; the A25+ upgrades to 5th-gen Class G power and adds USB-C for up to 384 kHz/32-bit computer audio.
Which DAC is used?
All three models use an ESS ES9018 DAC.
Do all three include a phono input?
Yes—each amplifier includes a moving-magnet (MM) phono stage (47 kΩ + 100 pF).
What wireless features are standard?
Bluetooth 5.4 with Snapdragon Sound, LE Audio, and Auracast with two-way operation (A2DP sink/source, AVRCP).
What are the rated power outputs?
A5+: 50 W/8 Ω (75 W/4 Ω); A15+: 80 W/8 Ω (120 W/4 Ω); A25+: 100 W/8 Ω (165 W/4 Ω).
Is the headphone output the same across models?
Yes—spec’d up to 2.5 V into 32 Ω / 5 V into 300 Ω with a 16 Ω–2 kΩ load range.
Which model is best for demanding speakers?
The A25+, thanks to its Class G topology and the most headroom.

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