Arcam SA35 Review – Class G Streaming Integrated Amplifier with Dirac Live

With the Arcam SA35 Streaming Integrated Amplifier, the English HiFi specialist Arcam presents an amplifier that brings together, in a remarkably elegant form, almost everything a modern audio system is expected to deliver today. Streaming, classic analogue sources, phono playback, TV integration, room correction, and powerful amplification are not implemented as loosely connected features, but as a cohesive and carefully thought-out overall concept. This is precisely where the SA35’s particular strength lies: it is not conceived as a compromise solution, but as a fully fledged hi-fi hub that takes the promise “Just add speakers” seriously – and fulfils it at a high sonic level.

Key Facts

• Streaming integrated amplifier with built-in network platform
• Fifth-generation Class G amplification
• 2 × 120 watts into 8 ohms, 2 × 200 watts into 4 ohms
• ESS Hyperstream iV DAC in fully balanced configuration
• Linear PCM up to 32 Bit and 384 kHz, DSD up to DSD256
• HDMI eARC for seamless TV integration
• Integrated MM and MC phono stage
• Dirac Live room correction including measurement microphone
• 6.5 inch color display for album artwork and metadata
• Roon Ready, Apple AirPlay, Google Cast, Spotify Connect, TIDAL Connect, Qobuz Connect

Just add speakers – when an amplifier becomes a complete HiFi system

That such a comprehensive concept, as offered by this amplifier from England, does not descend into arbitrariness is due to Arcam’s experience and technical expertise. As a traditional HiFi manufacturer, Arcam has proven over decades that modern functionality and audiophile substance are not mutually exclusive. The SA35 builds directly on this foundation. It is aimed at music lovers looking for a powerful, contemporary system without having to deal with a multitude of separate components – while refusing to compromise on sound quality, control, or build quality.

At a time when streaming integrated amplifiers have become the most popular category in the HiFi market, the Arcam SA35 positions itself confidently in the upper segment. Priced at € 3.499,-, it targets listeners who expect more than mere convenience: namely a mature, long-term audio system that considers music, room acoustics, and everyday use alike. The following in-depth review explores why this is the case.

Positioning and ambition

For decades, the English HiFi specialist Arcam has stood for an engineering philosophy that does not view sound quality in isolation, but as the result of clean circuit design, stable power supplies, and sensible system integration. While many manufacturers in recent years have focused either on classic amplifier technology or on digital All-in-one solutions, Arcam has deliberately chosen an integrative path with the Arcam Radia Series.

Within this series, the Arcam SA35 plays a key role. It is not merely conceived as the “little brother” of the Arcam SA45, but positions itself confidently as a powerful centrepiece for demanding stereo systems, taking classic sources just as seriously as streaming, networking, and TV integration. At € 3.499,-, the SA35 clearly sits in the upper segment and must therefore be judged not only by its feature list, but above all by its sonic substance and long-term value.

Class G, Radia, and Arcam – technology with tradition

One central element of Arcam’s DNA is its long-established Class G amplifier technology. Unlike conventional Class AB designs, Class G operates with multiple supply voltages: at low and medium listening levels, a reduced supply voltage is used, minimising distortion and power dissipation. Only during dynamic peaks is a higher voltage engaged to provide power and control.

In the SA35, the fifth generation of this concept is employed, complemented by modernised components, optimised signal paths, and a newly developed power supply with a linear toroidal transformer. At the same time, the Arcam Radia Series marks a technological restart in the digital and streaming domain for the Harman International brand. Instead of refining existing modules, a completely new platform was developed from the ground up, designed for low interference, high processing power, and long-term update capability. The SA35 is therefore not a traditional amplifier with an added streaming module, but a true hybrid concept engineered for optimal results.

Design and build quality

Externally, the Arcam SA35 is deliberately understated. Clean lines, symmetrically arranged rotary controls, and a generously sized, flush-mounted display convey a sense of order and calm. This understatement proves pleasant in everyday use: the SA35 does not seek to impress with ostentation, but with timeless elegance.

The 6.5-inch colour display is excellently integrated and allows album artwork, track information, and source selection to be read easily from typical listening distances. The tactile quality of the controls is precise, the chassis is torsion-resistant and impeccably finished. Overall, the SA35 conveys the impression of a durable, mature HiFi component that is clearly not designed for short-lived trends.

Technology in detail

Amplifier concept and power stage design

The Class G power stages deliver 2 × 120 watts into 8 ohms and up to 200 watts into 4 ohms. More important than the raw figures, however, is how this power is delivered. The SA35 operates with control, low distortion, and tangible reserves – even with complex speaker loads. Its strengths become particularly apparent with dynamically demanding music: fast transients, clean impulses, and a bass range that remains firmly under control.

Class G explained: the balance between warmth and power

Arcam’s long-refined Class G amplifier technology is a central building block of the SA35’s sonic character. To understand why this amplifier sounds simultaneously warm, rounded, and powerful, a brief look at the principle is worthwhile.

Unlike traditional Class A/B amplifiers, Class G employs multiple supply voltages. At low and medium listening levels – precisely where most music is played – the amplifier operates with a reduced supply voltage. In this range, it works particularly linearly and with low distortion, delivering a smooth, relaxed sound often associated with Class A amplifiers: voices sound full-bodied, midranges flow naturally, and playback remains free of hardness.

Only when the music becomes dynamic and high power reserves are required does Class G switch to a higher supply voltage. This provides the authority and control typically expected from powerful Class A/B designs. The decisive advantage is that this power is only drawn when actually needed. The result is an amplifier that offers the warmth and naturalness of Class A in everyday listening, yet delivers authority, dynamics, and control on demand.

In the Arcam SA35, this technology is implemented so seamlessly that transitions between voltage rails remain inaudible. There is no sense of switching or abrupt change, but a consistently coherent sonic character. This explains why the SA35 performs equally convincingly with intimate singer-songwriter recordings as well as with large-scale orchestral or electronic productions. Here, Class G is not a marketing term, but a genuinely audible concept that balances warmth, control, and power.

Digital architecture and DAC

At the heart of the digital signal processing lies a newly developed six-layer circuit board with a continuous ground plane to minimise interference and crosstalk. The ESS DAC with Hyperstream iV topology operates in a fully balanced configuration and is supported by sophisticated jitter reduction. All relevant high-resolution formats up to 32 bit and 384 kHz are supported, as well as DSD up to DSD256. The result is a very quiet, finely resolved sound with clear structure.

Streaming and networking

The SA35 can be integrated into the network via Ethernet or WiFi. Setup via the Arcam Radia app is stable and straightforward. Apple AirPlay, Google Cast, Spotify Connect, TIDAL Connect, and Qobuz Connect are supported, and the SA35 is Roon Ready. Local content can also be played via UPnP or USB mass storage. The streaming platform feels responsive and mature – a clear step forward compared to earlier Arcam generations.

Connectivity and system integration

In addition to multiple analogue line inputs, the SA35 features a fully fledged MM and MC phono input that performs well above what is often found as an add-on solution. On the digital side, HDMI eARC, S/PDIF optical, and S/PDIF coaxial inputs are available. Two subwoofer outputs allow flexible stereo systems with active low-frequency support. In terms of connectivity, the SA35 leaves little to be desired for a flexible system.

Room correction with Dirac Live

This is further enhanced by the integration of Dirac Live, currently one of the most effective room correction solutions available. The goal is not tonal re-colouring, but targeted reduction of room-related issues, particularly in the bass range. Measurements are carried out using the supplied microphone, with filter calculations performed directly in the unit. In practice, Dirac Live delivers greater precision, more even bass response, and improved spatial clarity. Crucially, the SA35 already performs convincingly without room correction enabled – Dirac Live serves as a fine-tuning tool rather than a corrective crutch.

Test environment

During testing, the Arcam SA35 drove Monitor Audio Gold 100 6G loudspeakers, connected with Wireworld Series 10 signal and speaker cables. Vinyl playback was handled by a Pro-Ject Signature 12 turntable via the integrated phono input. Streaming sources included Qobuz via Qobuz Connect and a Roon NUCLEUS+ on the local network, controlled via an Apple iPhone 14 Pro. TV integration was tested using a 77-inch Samsung OLED via HDMI eARC.

Sound quality in the listening test

In listening tests, the Arcam SA35 impresses with a remarkable blend of control, calmness, and musicality. It does not sound spectacular, but credible – and that is precisely its strength. Paired with the Monitor Audio Gold 100 6G, the system proves both finely dynamic and powerful, clearly establishing the SA35 as a fully capable integrated amplifier.

Jack Johnson – In Between Dreams

This intimate recording benefits greatly from the SA35’s calm and clean presentation. The voice is rendered with tangible presence, fine breathing and articulation details preserved without ever becoming intrusive. The acoustic guitar sounds natural and full-bodied, with clear separation between string attack and body resonance. The SA35 lets the music flow without smoothing it over – a very coherent and relaxed presentation.

Taj Mahal & Keb’ Mo’ – Room on the Porch

Here the SA35 demonstrates its excellent sense of timing and groove. The bass sets precise accents without dominating, providing a stable foundation for guitars and voices. The two voices are clearly separated while retaining warmth and presence. Particularly impressive is the rhythmic cohesion with which the Arcam conveys musical interplay.

Reb Fountain – Like Water

Reb Fountain’s voice is reproduced large, open, and precisely focused. The finest dynamic nuances remain clearly audible, without sibilance or overemphasis in the presence range. The amplifier combines detail with emotional openness – you not only hear more, you feel the expression.

Dolly Parton – Rockstar

This heavily compressed album demands both power and organisation. The SA35 delivers both: Dolly Parton’s now slightly huskier voice remains clearly focused, with volume and authority; guitars have bite and texture; drums punch hard while staying controlled. Even at higher levels, the amplifier retains composure, with a stable and differentiated soundstage. The combination of power and control makes for genuine listening pleasure.

Yello – The Expert

Electronic soundscapes are rendered with impressive precision. Deep bass remains tight and structured, effects are clearly positioned in space. The SA35 maintains full control over dynamics and loudspeakers, ensuring transparency and tension even in complex passages.

Editors – In Dream

Dense arrangements are cleanly unravelled, with a wide and stable soundstage. The SA35 combines drive with transparency, delivering precisely the balance of atmosphere and control this music requires. Vocals remain clearly focused without being lost in the mix.

Rothenberger, Gedda, Moser, Chorus of the Bavarian State Opera, Graunke Symphony Orchestra, Willy Mattes – Kálmán: Countess Mariza (highlights)

Large-scale orchestral and choral passages are presented with convincing overview. The soundstage scales naturally, soloists remain clearly focused even as the orchestra swells. At peak levels, the composure of the Class G power stages becomes evident, preserving both order and dynamics.

From the practice

In daily use, the Arcam SA35 impresses with an effortless sense of ease. Streaming starts quickly, connections remain stable, and source switching is instantaneous. The large display encourages direct interaction with the device and reduces reliance on a smartphone – a comfort factor not to be underestimated.

In the listening room, the SA35 feels calm, authoritative, and substantial. It does not present itself as a lifestyle gadget, but as a serious HiFi component that places technology and music firmly in the background. The combination of streaming, high-quality phono input, and HDMI eARC turns it into a true central hub that simplifies everyday use while meeting audiophile expectations.

Who is the Arcam SA35 for?

The Arcam SA35 is aimed at music lovers who want to build a modern HiFi system without getting lost in a multitude of separate components. Anyone looking to combine streaming, classic analogue sources, vinyl playback, and TV sound in a single high-quality device will find a solution here that is thoroughly thought through.

It is particularly attractive for listeners who consciously wish to forgo separate pre- and power amplifiers without accepting sonic compromises. Thanks to its authoritative Class G amplification, the SA35 feels equally at home driving demanding or complex loudspeakers, maintaining control and calm even at higher listening levels.

At the same time, it appeals to listeners who value long-term listening comfort. Its tonal balance, clarity, and lack of artificial showmanship make it an amplifier that convinces not by impressing instantly, but by satisfying over hours and days of listening.

Finally, the SA35 is ideal for anyone seeking a system that integrates harmoniously into a living space. HDMI eARC, streaming convenience, the large display, and room correction options make it a component that considers music enjoyment, daily life, and room acoustics in equal measure. Anyone who understands “Just add speakers” not as a cost-cutting measure but as a deliberate high-end strategy will feel right at home here.

Price and availability

The Arcam SA35 is available from authorised dealers at a price of € 3.499,-, clearly positioning it in the upper segment of modern streaming integrated amplifiers. It is aimed at listeners who consciously opt for a high-quality integrated solution and seek a single component that combines streaming, classic hi-fi sources, phono playback, and TV integration.

Conclusion

The Arcam SA35 is a streaming integrated amplifier that understands the term “All-in-one” not as simplification, but as a consistently well-engineered hi-fi concept. It combines the sonic authority of a full-sized integrated amplifier with a modern, stable streaming platform and intelligently integrated room correction. Nothing feels added on or retrofitted – the SA35 presents itself as a coherent system that considers music, room acoustics, and everyday use as a whole.

Sonically, the SA35 impresses with calmness, structure, and musicality across all genres. The Class G power stages combine the warmth and naturalness often associated with Class A designs with the control and power of traditional Class A/B amplifiers. Especially during longer listening sessions, it becomes clear that the SA35 is not about sonic effects, but about long-term listening satisfaction – whether streaming, vinyl, or TV sound.

Considering its features, power reserves, and level of integration, it becomes evident that the SA35 can replace several traditional components without sacrificing sound quality. Streaming bridge, DAC, integrated amplifier, phono preamplifier, and room correction work together seamlessly. Achieving this level of functionality with separate components would not only require more space, but usually a significantly higher budget.

From this perspective, the price of € 3.499,- appears not as a barrier to entry, but as a realistic investment in a high-quality, versatile, and future-proof audio system. With the SA35, the English HiFi specialist Arcam addresses listeners who understand “Just add speakers” not as a compromise, but as a deliberate high-end strategy – and in this respect, it convinces across the board.

Technical Specifications

The Arcam SA35 combines high-level Class-G amplifier technology with state-of-the-art streaming integration. Sonically superb, technically versatile, and convincing in everyday use. A true streaming integrated amplifier for discerning hi-fi listeners.

Test Environment

• Monitor Audio Gold 100 6G
• Wireworld Series 10 signal cable
• Wireworld Series 10 speaker cable
• Pro-Ject Signature 12 turntable
• Apple iPhone 14 Pro
• Samsung 77-inch OLED TV
• Roon NUCLEUS+
• Qobuz