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Cyrus Audio 40 AMP
Whether you are a digital or analogue fan, the 40 AMP was designed to be at the centre of your home audio and provide the perfect partner regardless of your preferred playback source. Delivering the level of exceptional performance expected from today’s music fans, this integrated amplifier has the capabilities to drive even the most demanding of loudspeakers. With 100 watts per channel into 6 ohms, and a generously over-specified power supply the 40 AMP is capable of reproducing the scale and drama of the musical performance in your own home.
Encased in the sleek design of the 40 series aluminium casing with a 5” hi-resolution full colour TFT display, the 40 AMP has been designed to fit into today’s modern lifestyle. Sitting at the centre of this multi-functional amplifier is an electronic circuit that has been designed entirely by the R&D team at Cyrus. The DAC is based upon the latest chipset from ESS, the ES9039Q2M, and has been reworked to provide an audio signal that replicates the artists original recording to a level not seen in a Cyrus product before.
As well as multiple digital and analogue connections, the 40 AMP has a low noise MM phono stage which inherits many of its design features from the award-winning Classic PHONO. The phono stage performs at a level way above its class, featuring low background noise and high dynamic range, providing the perfect complement for a quality vinyl turntable.
The features of the 40 AMP do not stop with your love of music, now with the addition of the latest HDMI eARC input, your home audio now provides the opportunity to enjoy your favourite films or tv series through your chosen loudspeakers, putting the 40 AMP well and truly at the centre of your home entertainment.
Customised DAC design is at the forefront of all digital products from Cyrus, and the 40 AMP embodies this approach like never before.
Based upon the ESS Sabre ES9039Q2M chipset and HyperStream IV Dual DAC technology, the 40 AMP supports up to 32-bit 768kHz PCM & DSD1024 audio files. Every component has been analysed by our engineering team and the board layout fully optimised to tune the DAC so that we can achieve the highest possible performance.
As well as multiple digital and analogue connections, the 40 AMP has a low noise MM phono stage which inherits many of its design features from the award-winning Classic PHONO. This phono stage performs at a level way above its class, featuring low background noise and high dynamic range, providing the perfect complement for any quality vinyl turntable source.
The wideband power amplifier of the 40 AMP responds from D.C. to beyond 100kHz ensuring ruler flat frequency response and keeping any undesirable phase shifts out of the audio band. With a generous, over-specified power supply the 40 AMP power amplifier is very capable of reproducing the scale and drama of the musical performance.
Even when the 40 AMP is packaged with our latest custom designed switch mode power supply, improvements are always possible. To further enhance the experience and provide the 40 AMP with the best configuration of power, you can easily connect the 40 PSU external power supply to the 40 AMP with a single cable. Providing multiple supplies, all of the output voltages from the 40 PSU are digitally controlled internally, so are extremely stable and virtually noise free.
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Cyrus 40 AMP — compact power with analytical poise
The Cyrus 40 AMP pairs a sleek modern chassis with a surprisingly muscular, refined sound. Reviewers from What Hi‑Fi?, Sound Advice and Pursuit Perfect System note its clear, articulate midrange, controlled, well‑gripped bass and smooth treble that stays detailed without sounding harsh. The on‑board ESS Sabre ES9039Q2M DAC and robust analogue phono stage handle high‑resolution PCM and DSD with composure, while the amp’s 100W‑class output provides enough headroom to drive most mainstream speakers.
Performance highlights include lively dynamics, focused imaging and a clean, low‑noise presentation. Build quality — brushed aluminium, glass front and a high‑res 5" TFT display — is praised for both looks and usability. Ideal for audiophiles who want a versatile, all‑in‑one integrated that doubles as a TV hub via HDMI eARC. The 40 AMP’s combination of features, sound and engineering makes it a compelling contender in its price tier.
Pros
- Clear, detailed and musical presentation with agile, expressive dynamics suitable for complex recordings and demanding speakers.
- Extensive modern connectivity and high‑resolution digital front end — ESS Sabre ES9039Q2M DAC, USB‑B, coax, optical, HDMI eARC and a capable MM phono stage supporting DSD and high‑res PCM.
- Premium, compact build with a crisp 5" TFT display, refined ergonomics and finish that lift it above many rivals.
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Cons
- Performance improves noticeably with the optional 40 PSU, but that upgrade adds significant additional cost.
- Half‑width layout limits rear‑panel space: single‑ended connections only (no balanced XLR) and tightly spaced terminals can make cable management awkward.
Sound Quality
90/100
Dynamics
90/100
With 100Wpc (113W with the optional 40 PSU) reviewers note the amp delivers expressive, articulate and effortless dynamics and can drive demanding speakers with authority (Best of High End, What Hi‑Fi, Sound Advice). Several reviews highlight the generous power supply and headroom, and the PSU further improves dynamic slam and control when fitted.
Soundstage Imaging
89/100
Stereo imaging is described as stable, focused and pleasingly three‑dimensional, with convincing space and airiness across recordings (What Hi‑Fi, Pursuit Perfect System, Sound Advice). While not the absolute most expansive in its class, the amp creates a coherent and well‑defined soundstage that expands further with the external PSU.
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Build Quality
90/100
The 40 AMP is described as very well made with brushed anodised aluminium, a toughened glass front and a high‑resolution 5" TFT display; control ergonomics (illuminated volume wheel, touch sensors) are praised (What Hi‑Fi, Pursuit Perfect System). Internal layout and component optimization (DAC tuning, board layout) are also highlighted as part of the product engineering.
Features Connectivity
95/100
The 40 AMP is richly specified: high‑quality ESS Sabre ES9039Q2M DAC, USB‑B, two coax, optical, HDMI eARC, moving‑mag phono stage, front headphone output, pre/fixed outputs and firmware update ports (RJ45/USB). That breadth (plus optional 40 PSU support and a high‑res display) places it at the top end of feature sets for integrated amps in this segment.
Value for Money
90/100
Across reviews the 40 AMP is repeatedly called a strong all‑rounder for the money and praised for packing much functionality and performance into a compact package (What Hi‑Fi, Pursuit Perfect System, Sound Advice). While the price is acknowledged as premium, reviewers generally say the performance and versatility justify the cost.
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