Arcam A25 Stereo Integrated Amplifier


Arcam A25 Integrated Stereo Amplifier

The mighty Arcam A25 is the flagship amplifier in the new Radia series. Featuring a 5th Generation Class G amplifier design, the A25 mixes power and finesse in equal measure to produce stunning sound quality with superb depth, clarity and precision.

Arcam have been building top quality amplifiers for more than 45 years and it’s clear to see (and hear) that this expertise has been put to great use in the new A25. Arcam’s engineers have spent countless hours analysing and reviewing new components and materials to ensure the best possible performance – the result is an amplifier that offers best in class sound quality, versatile connectivity and sleek, luxurious styling.

Hi-Res Streaming

The Arcam A25 is more than just a stereo amplifier, it also features Bluetooth with Qualcomm AptX Adaptive technology – capable of providing up to 24-bit HD audio when streaming music from your phone or tablet, just add a suitable pair of speakers and you have a ready made Hi-Fi system. You can also connect to Bluetooth headphones for those more private listening sessions.

Powerful and efficient

Arcam’s renowned Class G amplifier design offers plenty of power with a rated output of 2 x 100w RMS - more than enough power to drive the vast majority of speakers with ease, comfortably filling larger spaces with full-blooded, dynamic, life-like sound. This impressive power combined with ultra-low levels of distortion and excellent efficiency enables the A25 to play at high volume levels for extended periods without sounding harsh or strained.

Vinyl Lover 

Re-energise your cherished vinyl collection with the A25, the high-quality built-in phono stage has been carefully designed to extract the absolute most from your record collection and is suitable for turntables with an MM (moving magnet) cartridge.

Versatile connectivity

The A25 makes connecting your external sources simple, an audiophile quality built-in DAC (Digital to Analogue Convertor), enables effortless connection to digital audio sources. Boasting two coaxial and one optical input you can easily connect your TV, games console, music streamer etc. The audiophile ESS DAC ensures the best possible sound quality for any digital source. A USB-C input allows easy connection of a laptop or PC. For connecting more traditional analogue sources like an FM tuner, there are three RCA phono inputs available.

Sleek style & premium build quality

The Arcam A25 boasts a sleek, attractive design without distracting from the sound. Build quality is exceptional, an all-aluminium casing with satin black finish and solid aluminium backlit dials give a luxurious look and feel. A compact remote control is also included.

Optional matching source components

Arcam offer the CD5 CD player and ST5 streamer should you wish to expand your system further. Both a perfect match aesthetically and sonically.

Arcam A25 Overview

ARCAM Class G amplification - for ultra-low distortion

100W per channel (8Ω) - powers loudspeakers effortlessly. 

Bluetooth with aptX™ Adaptive Technology - for the best sound with the most convenience

Specially selected components and materials - to deliver on sound quality

Wired or Wireless Headphones - connect your headphones for quiet listening with, or without wires

All new Radia design - Purposeful yet playful

MM phono stage - ready for Turntables

Hi-Res Digital Audio Inputs - with the addition of USB-C for ultra Hi-Res audio

Plastic Free Packaging - for easy disposal of natural materials

5 Year Arcam guarantee

Arcam A25 Specifications

Continuous power output (0.5% THD)


2 channels driven, 8Ω, 20Hz—20kHz


2 channels driven, 1kHz, 4Ω 


Harmonic distortion, 80% power, 8Ω at 1kHz


Analogue Inputs


Phono (MM) cartridge


Input impedance

47kΩ + 100pF

Frequency response (ref. RIAA curve)

20Hz – 20kHz ± 1dB

Line Inputs


Number of inputs


Signal/Noise ratio (A-wtd) 50W, ref. 1V input


Frequency response

20Hz – 20kHz ± 0.2dB

Digital Inputs


USB-C Supported Sample Rates

384, 352.8, 192, 176.4, 96, 88.2, 48, 44.1

Supported DSD (USB-C only)

1024, 512, 256, 128, 64



Frequency response

20Hz - 20kHz ± 0.2dB

Total harmonics distortion + Noise


Signal/Noise ratio (A-wtd, ref. 50W, 0dBFS)


Supported Sample Rates (Optical)

44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz

Supported Sample Rates (Coaxial)

44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz

Bit depth

16-bit – 24-bit - 32-bit

Headphone output


Maximum output level (RMS) into 32Ω/300Ω


Output impedance

Load range

16Ω – 2kΩ



Mains voltage

110–120V or 220–240V, 50–60Hz

Maximum power consumption


Power consumption (standby)


Dimensions W x H x D (including feet and speaker terminals)

431 x 98 x 344mm

Weight (net)


Weight (gross)


Supplied accessories

Mains leads, Remote control, 2 x AAA batteries, quick-start guide


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