Cyrus One Integrated Amplifier with Definitive Technology Demand D9 Bookshelf Speakers Piano Black
Cyrus One Integrated Amplifier with Definitive Technology Demand D9 Bookshelf Speakers Piano Black
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Cyrus One Integrated Amplifier with Definitive Technology Demand D9 Bookshelf Speakers Piano Black
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Cyrus One Integrated Amplifier with Definitive Technology Demand D9 Bookshelf Speakers Piano Black

This Bundle Includes

Cyrus One Integrated Amplifier
Definitive Technology Demand D9 Bookshelf Speakers Piano Black
Cyrus ONE Integrated Amplifier
Cyrus ONE Integrated Amplifier
Cyrus ONE Integrated Amplifier

Breath-taking audio from a single box integrated amplifier. With its compact yet boasting audio specification. Send Bluetooth from your phone, directly connect a record player or plug in Google’s Chromecast Audio for CD Quality Streamed Music.

One of the Best Headphone Amplifiers money can buy. ONE is the standard by which others are measured.


Built-in MM Phono Stage

aptX compatible Bluetooth

Pre Outputs – Connection to additional Power Amplifiers

4 Line Level Inputs including AV Bypass

High Power, High Voltage Class AB Headphone Amplifier


Cyrus ONE is a Superb Quality Home Audio Amplifier with Built-in Bluetooth, phono stage and multiple inputs


With Simplicity and integration as the core to this product, it being app controllable we have built-in the high quality Bluetooth Receiver, so users can send music from their phones and a ‘phono stage’ so users can directly connect turntable.


One of the Headphone Amplifiers money can buy. ONE is the standard by which others are measured.


Featuring Cyrus’ own 3rd Generation Class D Amplifier providing 2 x 100W of power. With a high performance solution that will form the heart of many different lifestyle systems


With the infra-red remote or the app can control volume and switch inputs, as well as adjusting the brightness of the display LEDs to suit your listening environment. Made by Cyrus, class leading musical performance is a given.


Bluetooth Enabled


Compatible Bluetooth enables you to stream music from your phone or tablet or connect to your computer via a Wireless Bluetooth Connection. With a Maximum Flexibility without the need for a home network or complicated set up


MM Phono Stage


The Cyrus One features 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





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

Definitive Technology Demand Series D9 High-Performance Bookshelf Speakers Pair in Piano Black
Definitive Technology Demand Series D9 High-Performance Bookshelf Speakers Pair in Piano Black
Definitive Technology Demand Series D9 High-Performance Bookshelf Speakers Pair in Piano Black

1" Aluminium Dome Tweeter with 20/20 Wave Alignment Lens™ and Laterally Offset Tweeter Assembly
Laterally Offset Tweeter Assembly
BDSS™ (Balanced Double Surround System) Midrange/woofer
Integrated passive bass radiator in each speaker produces superior low-end extension
Demand Series D9 
Definitive Technology Demand D9 high-performance bookshelf speakers deliver full-range, room-filling sound and precise imaging in a modern, elegant styling. Featuring technology advancements to both our aluminium dome tweeter and midrange/woofer sections, each speaker delivers an unrivaled sweet spot, smoother high-frequency reproduction, and three-dimensional imaging for the most technically-advanced, premium bookshelf listening experience. 
Coupled with our new 20/20 Wave Alignment Lens™, our annealed aluminium dome tweeter delivers smoother high frequency response and improved dispersion for a rich and balanced listening experience. Offsetting the tweeter by 5° delivers a more precise centre stereo image by eliminating undesirable symmetric diffraction off the corners of the front baffle.  
Clean, modern industrial design with a bead blasted finish provides a timeless look and feel that fits any décor.
Patented Linear Response Waveguide extends both on and off axis frequency response, whilst improving dispersion for more natural mid-range timbre and more precise imaging. 
Patented Balanced Double Surround System (BDSS) midrange/woofer provides greater excursion and output that results in superior mid-range detail and punchier bass compared to drivers of similar size.
Tech Specs
Total Pieces: 2
Included Accessories: (2) Acoustically transparent magnetic black speaker grilles
Optional Accessories: (1) ST1 Demand Series Speaker Stands (Pair) - Sold Separately
Cabinet Warranty: 5 years
Drivers Warranty: 5 years
Original Purchaser Only: Yes
Qty Included: Pair
Orientation: Vertical
Height: 11.71" (29.74 cm)
Width: 6.5" (16.51 cm)
Depth: 11.97" (30.4 cm)
Driver Enclosure Type: MDF cabinet with extruded natural bead-blasted aluminium front baffle
Driver Complement:
(1)  5.25" (13.34 cm) d (Round) Polypropylene BDSS Bass - Mid/Woofer
(1)  1" (2.54 cm) d (Round) Annealed Aluminium Dome and Laterally Offset - Tweeter
(1)  5" (12.7 cm) h x 9" (22.86 cm) w (Oval) Passive - Bass Radiator
Total Frequency Response: 44 Hz → 24,000 Hz
Nominal Impedance: 8 ohms
Sensitivity (1 watt @ 1 metre): 88 dB
Lower and Upper -3dB Limits: 64 Hz → 22,000 Hz
Audio Inputs
Speaker Inputs: (1) (Set) 5-Way Binding Posts - Gold Plated
Mounting Type: 1/4 in - 20 Threaded Insert
Available Orientations: Vertical
Mounting Location: Bottom of Speakers
Mounting Type
Available Orientations: Vertical
Recommended Amplifier Power Per Channel: 20 watts → 150 watts
A/V Receiver Crossover Settings: Small (80 Hz)
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Flexible Delivery  
We know that you expect your goods to be delivered promptly and efficiently. That’s why we have made it a priority at to deliver your goods as quickly as possible using our fast, efficient delivery service which comes direct to your home and is FREE!

- We deliver seven days a week 
- Standard deliveries are despatched via specialist carriers and are normally delivered within 3-5 working days. 
- Express deliveries are dispatched same day (if ordered before 14:30) for delivery within 1-2 working days.
- For weekend deliveries, orders need to be placed by 14:30 on Friday.
- Larger Items are despatched using our team of specialist nationwide carriers. You will be contacted within 48 hours verifying your order and an estimated delivery date.
Deliveries direct from manufacturers or suppliers can take a little longer but we will keep you informed and updated.

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RETRA members
We are members of RETRA (Radio, Electrical & Television Retailers' Association) - the UK's largest trade association and regulatory body for electrical retailers.

CIH members
As members of Europe's largest electrical buying group, CIH Ltd, we have a collective buying power in excess of £500m. As such, we can often source fast moving, high demand lines at competitive buying-in prices, and ultimately pass on those savings to our customers.

Euronics member
As a member of Euronics, we are part of a network of 'Euronics Agents' who are all independent electrical specialists. Similar to a co-operative, as an agent of this prestigious organisation, providing our customers with the highest service levels is at the heart of everything that we do, whether in-store, over the telephone or through the internet.
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