Cyrus ONE

Breath-taking audio from a single box integrated amplifier. Compact, yet boasting an incredible audio specification. Send Bluetooth from your phone, directly connect a record player, or plug in Google’s Chromecast audio for CD quality streamed music. It also has sound for pound, one of the best headphone amplifiers money can buy. ONE is the standard by which others are measured.

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The ONE is a versatile beast. Because of its huge power capability, it can comfortably drive speakers to fill large rooms, but it’s just as comfortable in an office or bedroom environment.


The exquisite headphone amplifier makes it especially suited to the latter of those applications – the perfect partner for a late-night listening session in front of the laptop.


Design Philosophy of the ONE

Simplicity and integration are core to this product. As well as being app controllable, we’ve built in a high-quality Bluetooth receiver, so users can send music from their phones, and a ‘phono stage’ so users can directly connect a turntable. The powerful 100 watt stereo amplifier section uses our in-house designed ‘hybrid Class-D engine’ – one of the most impressive amplifier designs of recent years.

The ONE also has serious ‘Head-Fi’ credentials. The built-in Class AB headphone amplifier is exceptional. When used in this mode, the full power of the large toroidal transformer is diverted to power this amplifier section, producing a dynamic range and level of control rarely seen in even dedicated headphone amplifiers.

Another innovation from our design team and implemented in the Cyrus ONE is the ‘SID’ system. This stands for ‘Speaker Impedance Detection’ system. When the amplifier is powered on, it measures the connected speakers and automatically calibrates the amplifier to deliver the best possible performance.

Our over-arching design objective with the Cyrus ONE was to craft an integrated amplifier product that is as relevant and important today as the original Cyrus One product was in the 1980s. We wanted it to be affordable, drive pretty much every speaker system on the market and be a fantastic entry point to the core values our brand represents. We’re exceptionally proud of the results and are certain this amplifier will offer users many years of superb listening experiences.



– Built-in MM Phono stage
– aptX® compatible Bluetooth
– Pre outputs – for connection to separate power amps
– 4 line level inputs – Including AV Bypass
– High power, high voltage class AB headphone
– Bi-wire compatible speaker binding posts


– App control (iOS and android)

– IR remote control
– User upgradable firmware – updates to the latest firmware
for new features in your own home

Technical Specifications

– Cyrus 3rd generation hybrid Class D amplifier – outputs 2 x 100W
– SID – Speaker Impedance Detection
– Large toroidal transformer – linear power supply throughout for minimal noise
– Eleven separate power supplies – to maximise separation of different circuits

Dimensions & Finish

– Dimensions: (H X W X D) – 85 x 220 x 390mm
– Weight – 5.72kg
– Textured, rubberised and high gloss black finish

Designed and Manufactured in the United Kingdom