Cyrus ONE

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Cyrus ONE - A multifaceted high performance amplifier
CYRUS ONE - What Hi-Fi review CYRUS ONE - What Hi-Fi review CYRUS ONE - What Hi-Fi review CYRUS ONE - What Hi-Fi review


CYRUS ONE - Hi-Fi Choice reviewCYRUS ONE - Hi-Fi Choice review

Cyrus ONE

CYRUS ONE - Hi-Fi Choice review
  • "Subtlety and power rarely come together in modestly priced products, but the ONE sets the bar high on both counts at this price."
  • "I’ve been won over by the way the innovative ONE presents music with addictive dynamics, deep transparency and refined timing."
  • "Cyrus may have been inspired to appeal to a new, younger ‘enlightened’ audience that wants plug and play simplicity for vinyl, streamed and line sources, but the level of performance it has achieved within a single svelte box for a modest price, means seasoned audiophiles should be tempted. Thoroughly recommended."
  • LIKE:
    • Clean, dynamic power;
    • innovative SID system;
    • epic bass;
    • value for money
CYRUS ONE - The Audiophile Man review

Cyrus ONE

CYRUS ONE - The Audiophile Man review
  • "Where this track, from some of the better quality competition, can sound open and airy but also lacking in precision and accuracy, the Cyrus corrects those issues."
  • "The ONE’s focus and accuracy is a wondrous element of its sonic personality but that has to derive from attention to detail in terms of low noise planning for both part selection and internal planning which allows other, more subtle, frequencies to do their thing."
  • "Compact in size but offering a snazzy and very attractive sense of dash and urbanity, the ONE provides everything you might need within a budget amplifier without any sense of compromise. The low noise focus that the amplifier bestows upon the musical output is very impressive making it a hard challenger for amplifiers double the price. "
  • GOOD: focus, midrange precision, bass control, design, Bluetooth

CYRUS ONE - What Hi-Fi review

Cyrus ONE

CYRUS ONE - What Hi-Fi review
  • While there’s no DAC, aptX Bluetooth is onboard so you can stream music from a phone, tablet or laptop.
  • The One surprises yet again, delivering a big, glossy and clinically-balanced presentation that’s lathered with the punch and solidity that makes music, whether it’s SBTRKT’s Wildfire or Olaf Arnalds’ Ljosio, sound immediately arresting. Cyrus claims a power output of 100 watts per channel and that figure is believable.
  • The drums opening the former snap through our speakers with force and duress, and the chubby bassline is backed with plenty of weight as it moves at pace over the top.
  • The silky pop vocal penetrates the soundstage with just as much conviction and is fleshed out without sounding too thick or sacrificing texture.
  • For:
    • Crisp, clean balance
    • Punchy and solid
    • aptX Bluetooth
    • Phono stage

Cyrus ONE Features:

  • Cyrus 3rd generation Class D amplifier – outputs 2 x 100W
  • SID – Speaker Impedance Detection automatically matches the amplifier’s output response to the electrical load of the loudspeakers
  • Large toroidal transformer – linear power supply throughout for minimal noise
  • Built-in MM Phono stage – play your favourite vinyl from most turntables
  • High power, high voltage class AB headphone - drive almost all headphones with ease 
  • AV Bypass – ability to run as a power amplifier
  • Bluetooth aptX® – enjoy music from portable devices quickly and easily
  • Eleven separate power supplies – to maximise separation of different circuits
  • Striking design – looks stunning in any environment

The Cyrus ONE is designed in a clean, simple, elegant non-ferrous chassis that minimizes eddy currents and reduces pickup of external noise. Extensive mains supply filtering is used to reduce the impact of external noise which has the ability to colour the audio performance.

Featuring Cyrus’s own 3rd generation Class D amplifier providing 2 x 100W of power, aptX ® compatible Bluetooth ® connection, a dedicated high power , high voltage class AB headphone amplifier, MM Phono stage, and 4 line level inputs this is a high performance solution that will form the heart of many different lifestyle systems. The infra-red remote can control volume and switch inputs, as well as adjusting the brightness of the display LEDs to suit your listening environment. And, because it is made by Cyrus, class leading musical performance is guaranteed.

Cyrus ONE Firmware:

The latest version of firmware is 1.3. This allows Cyrus ONE to be controlled using our Cyrus ONE Remote Bluetooth app, which can be downloaded on your smartphone or tablet for free via the Play Store or App Store. Just search for 'Cyrus ONE'.

Cyrus ONE Remote Bluetooth app screenshot 1 Cyrus ONE Remote Bluetooth app screenshot 2
Cyrus ONE Remote Bluetooth app

Technical Information

Continuous power: 100 watts per channel (into 6 Ohms)
Power supply: Large toroidal transformer (linear power supply)
Dimensions (H X W X D): 85 x 220 x 390 mm
Finish: Textured, rubberised and high gloss black finish
Weight: 5.6kg

Inputs/ Sources
4 line level inputs
MM Phono stage
Bluetooth aptX®

Speaker Out - bi-wire compatible binding posts
Headphone Out
Pre Out

Textured soft feel controls, highly polished faceplate

4 line level inputs
MM Phono stage
aptX® compatible Bluetooth
Pre outputs
Bi-wire compatible speaker binding posts

IR remote control
Remote Bluetooth app
User upgradable firmware – updates to the latest firmware for new features in your own home
Cyrus ONE angle shot
Cyrus ONE angle shot


Features & Benefits

High Power Amplifier
2 x 100W gives class leading power output that will drive any loudspeaker regardless of their size. All that power enables Cyrus ONE to present your music with a huge dynamic range, giving 3D detail and bags of energy without the need to buy big, bulky, inefficient amplifier boxes.

Bluetooth Enabled (aptX®)
aptX® compatible Bluetooth enables you to stream music from your phone/tablet or computer via a wireless Bluetooth connection, providing maximum flexibility without the need for a home network or any complicated set up. This allows everyone in the family to enjoy their music from their portable devices quickly and easily.

Moving Magnet Phono Stage
Cyrus One features a built-in phono stage that is compatible with all moving magnet cartridges and requires no adjustment or extra set up, enabling you to play all your favourite vinyl from most turntables.

AV Direct
The ability to run the Cyrus ONE as a power amplifier in AV bypass mode enables it to be easily integrated into any home theatre system whilst still offering amazing musical performance.

Speaker Impedance Adjustment
SID – Speaker Impedance Detection automatically matches the amplifier’s output response to the electrical load of the loudspeakers. This means that matching Cyrus ONE to any brand of loudspeaker has suddenly been made so much easier.

Class AB headphone amplifier
The high power, high voltage class AB headphone amplifier will drive almost all headphones with ease and with an output on the front, the Cyrus ONE offers a level of musical performance for the personal listening experience that is also easy and convenient.

Pre Amplifier Outputs
Pre-Out sockets on the rear panel allow the connection of additional power amplifiers for system upgrades to drive more demanding loudspeakers. This means that Cyrus ONE is not limited by its size or power output for any loudspeaker you may choose.

Stunning Modern Design
The striking design incorporates white LEDs to signify the input selected and the volume setting during playback. The intensity of these LEDs can be adjusted to suit the lighting in the local environment. With textured soft feel controls, a highly polished faceplate and carefully chosen paint finishes the Cyrus ONE will look stunning in any environment.

Cyrus ONE back view
Cyrus ONE back view
CYRUS ONE Stereo Setup
ATC SCM 7 Stereo Setup
ATC SCM 11 Stereo Setup ELAC BS 244 Stereo Setup ELAC BS 244 BE Stereo Setup
BS 244 BS 244 BE
ELAC FS 187 ELAC FS 207 A XAVIAN NEOX2 Stereo Setup
FS 187 FS 207 A NEOX2
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