Arcam A25
The A25 combines warm, rich musicality with clean Class G power, delivering muscular dynamics, smooth treble and a broad, inviting soundstage from a slim, striking chassis. StereoNET’s Mark Gusew praises its rhythmic drive and bass authority, while Gene DellaSala found exceptionally low noise and distortion. USB-C DAC, MM phono and aptX Adaptive Bluetooth make it a confident modern hub.
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Deliciously Crispy
Sound Quality
90/100
Build Quality
88/100
Features Connectivity
95/100
Value for Money
93/100
Pros
Warm, refined and rhythmically engaging sound with strong bass extension, smooth treble and a wide soundstage.
Clean, powerful amplification with excellent measured noise and distortion performance plus substantial dynamic headroom.
Generous connectivity includes USB-C DAC input, MM phono, headphone output, optical/coaxial inputs, and aptX Adaptive/AAC Bluetooth.
Cons
The pre-out clips at a low 1Vrms, limiting its usefulness for driving many external power amplifiers.
The MM phono stage can lose low-frequency composure with higher-output cartridges; dedicated vinyl listeners may prefer an external phono preamp.
No network streaming or HDMI ARC, which may matter in TV-centred or all-in-one systems.
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What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 90/100
Reviews describe a powerful, refined and musically inviting presentation that combines low noise and strong detail retrieval with a warm, substantial tonal character. It drives a broad range of speakers confidently, although some listeners found its bass a little full and its presentation less sharply focused than leaner-sounding rivals.
Transparency Resolution
91/100
Stereophile heard an effortless, grainless and tone-truthful amplifier, while Sound Advice praised its low noise levels and easily audible fine detail. Audioholics' measurements support those impressions, reporting exceptionally low noise and distortion for the price, although the warmer voicing is not the last word in incisive clarity according to Pursuit Perfect System.
Tonal Balance Musicality
90/100
The A25 is widely described as refined, smooth, rich and engaging, with a clean treble that avoids hardness. Several reviewers particularly enjoyed its warm, bold rendering of voices and less-than-perfect recordings, but Pursuit Perfect System found the bass somewhat thick and bloomed, making speaker matching worthwhile.
Dynamics
91/100
Reviewers repeatedly found the A25 punchy, lively and capable of substantial drive, with Stereophile calling it more powerful than expected and StereoNET hearing no compression at high levels in a medium room. Audioholics also measured generous dynamic headroom, though Sound Advice noted that truly ballistic material can sound fractionally relaxed.
Soundstage Imaging
88/100
StereoNET heard a satisfyingly broad stage extending beyond the speakers, and SoundStage Solo praised pinpoint placement, imaging and soundstaging. Stereophile also noted firmly outlined images with good body, but the warmer balance can soften focus: Pursuit Perfect System and Old Guy Hifi found less depth, width and image precision than some alternatives.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
88/100
The slim aluminium chassis, controls, terminals and overall finish drew consistently positive comments, with reviewers calling it solid, sturdy and finished to a high standard. SoundStage Solo also found the casework remained comfortably warm rather than hot in use, although Audioholics heard internal components singing when the amplifier was pushed close to full output.
Features Connectivity
95/100
The A25 is unusually well equipped for a conventional integrated amplifier, combining three RCA line inputs, MM phono, pre-out, headphone output, USB-C DAC input with DSD support, optical and coaxial digital inputs, and Bluetooth with AAC and aptX Adaptive. Its DAC, phono stage and headphone section all received positive listening comments; the principal omission for modern TV-centred systems is HDMI ARC.
Value for Money
93/100
At around $1,499/£1,499, reviewers repeatedly regarded the A25 as a compelling package, citing its power, DAC, phono stage, headphone capability and strong finish. Stereophile felt its amplification performed like a far more expensive power amplifier, while StereoNET found the overall enjoyment exceeded expectations at the price.
Reviews & Sources
Professional reviews and sources for this product's Watt'n Potatoes analysis.
Online Reviews & Mentions
YouTube Reviews
Forum Mentions
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Specifications
- Specification
- • Continuous power output (0.5% THD), per channel
- Specification
- • 2 channels driven, 20Hz - 20k Hz, 8Ω 100W
- Specification
- • 2 channels driven, 1k Hz, 4Ω 165W
- Specification
- • Harmonic distortion, 80% power, 8Ω at 1k Hz 0.002%
- Specification
- • Analogue Inputs
- Specification
- • Number of inputs 3 (RCA pairs)
- Specification
- • Signal/noise ratio (A-wtd, ref. 50W, 1V input) 106dB
- Specification
- • Frequency response 20Hz—20k Hz ± 0.2dB
- Specification
- • Phono (MM) Input
- Specification
- • Input impedance 47kΩ + 100pF
- Specification
- • Frequency response (ref. RIAA curve) 20Hz—20k Hz ± 1dB
- Specification
- • Digital Inputs
- Specification
- • Supported Sample Rates (k Hz)
- Specification
- • USB-C 384, 352.8, 192, 176.4, 96, 88.2, 48, 44.1
- Specification
- • Coaxial (RCA) 192, 176.4, 96, 88.2, 48, 44.1
- Specification
- • Optical (Toslink) 192, 176.4, 96, 88.2, 48, 44.1
- Specification
- • Supported DSD USB-C only 256, 128, 64
- Specification
- • Bit depths (bit) 32, 24, 16
- Specification
- • Frequency response (filter 1) 20Hz—20k Hz ± 0.2dB
- Specification
- • Signal/noise ratio (A-wtd, ref. 50W, 0dBFS) 110dB
- Specification
- • Headphone Output
- Specification
- • Maximum output level (RMS) into 32Ω/300Ω 2.5V/5V
- Specification
- • Load range 16Ω - 2kΩ
- Specification
- • General
- Specification
- • Mains voltage 100V or 110–120V or 220–240V, 50–60Hz
- Specification
- • Power consumption (maximum) 500W
- Specification
- • Power consumption (standby) <0.5W
- Specification
- • Dimensions W x D (including speaker terminals) x H (including feet) 431 x 344 x 83mm
- Specification
- • Weight (net) 9kg
- Specification
- • Weight (packed) 12kg
- Specification
- • Supplied accessories
- Specification
- • Mains lead(s)
- Specification
- • Remote control with 2 x AAA batteries
- Specification
- • Quick Start Guide
- Specification
- • Important Safety Instructions
Manufacturer's Description — Arcam
The ARCAM A25 is the best sounding, and most feature rich of our Radia Integrated amplifiers. The visual luxurious highlights hint towards the more luxurious musical experience that it offers.
This is achieved with a 5th generation Class G amplifier design. You can expect the best sound quality and dynamics from what has always been a better sounding, and more efficient Class of amplifier. New components and materials have been painstakingly analysed and reviewed to ensure uncompromising sound performance.
The rich feature set includes a USB-C input for your laptop, be it PC, MAC or Raspberry Pie! This augments a Bluetooth solution that includes Qualcomm AptX Adaptive technology with 24-bit HD audio to ensure the best sound quality no matter what you are playing. It can also connect to Bluetooth headphones so your listening experience can continue sensitively after dark.
Like any ARCAM integrated amplifier, we pay particular attention to the built in phono stage to ensure your records sound as lush and engaging as possible.
- 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
Verified Dealers
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Authorized dealers for Arcam A25
- 110Hz — online and in-store — Kielce, Województwo świętokrzyskie, Poland (website)
- Accent On Music — in-store — Mount Kisco, New York, United States (website)
- Acoustic Technologies — online and in-store — Montréal, Québec, Canada (website)
- Acoustica — online and in-store — Chester, England, United Kingdom (website)
- Acton Gate Audio — online and in-store — Cymru, United Kingdom (website)
- Alen Audio — in-store — Extramurs, Comunidad Valenciana, Spain (website)
- Alpha High End — online and in-store — Brasschaat, Vlaams Gewest, Belgium (website)
- Alpha Stereo — in-store — Plattsburgh, New York, United States (website)
- Ambiance Concert — in-store — Angers, Pays de la Loire, France (website)
- AMPL’HIFI — online and in-store — Nîmes, Occitanie, France (website)
and 201 more verified dealers