Cyrus soundKey Archives

Cyrus soundKey Archives

Cyrus soundKey Archives

Cyrus soundKey Archives

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I have a Cyrus soundKey USB DAC/headphone amplifier plugged into my Pi-4B running moOde 6.4.2. The sound output to my headphones is excellent except when it suddenly distorts in a random fashion. Pausing the music and then pressing play again immediately fixes the problem, until it next happens again a minute or two later.

The Audio Device section of Audio Information reports:

Even to my untrained eye, the "Formats:" output looks wrong.
I have tried plugging it into USB 2 and USB 3 ports and with the USB (UAC2) fix both off and on. I have also removed the Pimoroni Shim Fan just in case the distortion was being triggered in some way by the fan starting, but that does not seem to be the cause.
Any help or suggestions would be most welcome.
Many thanks.
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(03-05-2020, 08:06 PM)Tim Curtis Wrote: The PHP error shown in the Formats: field is a bug that's fixed in upcoming 6.5.0. It's nothing that affects the audio stream.

The symptom "except when it suddenly distorts in a random fashion" suggests something external to moOde software for example bad or corrupt SDCard, incompatibility between Pi USB and DAC USB, other hardware issue.

You could try connecting another DAC to the Pi or another streamer to the DAC to see if you can isolate the component causing the issue.

Thank you for the prompt reply.

The other DAC that I have is the Audiolab M-DAC that's creating the popping-noise problem that's being discussed on another thread at the moment. However, I do have a Pi-2B+ that works fine with the M-DAC and I will pair that up with the Cyrus soundKey DAC and see what happens. I also have plenty spare microSD cards and will try that approach too.

Thanks again, Tim.
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Hi Kent,

Many thanks for the additional suggestions. After lots of test combinations, and rewriting of microSD cards, I conclude that the USB ports on a Pi-4B do not play nicely with some USB DAC-like devices.

I have previously reported that my Pi-4B causes a popping noise when connected to my Audiolab M-DAC, though the M-DAC works just fine when connected to a Pi-2B running exactly the same version of moOde. However, the Pi-4B does work fine with a simple USB audio adapter (Trond AC2-B). The adapter would have been a possible solution, but the volume is simply too low and that's why I bought the Cyrus soundKey which incorporates an amplifier.

I have now tested the soundKey connected to a Pi-2B and a Pi-1B, again running the same version of moOde, without any problems. This suggests that the Pi-4B is the culprit. For some reason it plays nicely with the Trond USB audio adapter, but not the M-DAC or the soundKey

My intended solution is to put the Pi-4B into safe storage for now and buy a second Pi-2B (very reasonably priced on eBay for a new unit) as I know that that will work.

There is at least one report of a kernel bug in Ubuntu causing problems with the 4 GB RAM version of the Pi-4B (as is mine), so perhaps a solution to my problem will arrive in some future kernel update for Raspian. Not holding my breath. however.

Again, many thanks.
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(03-07-2020, 04:47 PM)TheOldPresbyope Wrote: @leicray

I don't know the differences between the Ubuntu and Raspbian kernel, but the article does cause me to wonder if you are experiencing your issue on your RPi4B/4GB using moOde's default 32-bit kernel, the 64-bit kernel, or both?

When I can find the time, I will try both kernels and report back. There is also a suggestion from the link that I posted that limiting the size of the RAM can produce a cure. That's potentially a few hours of testing ahead of me.

Thanks for the suggestion.
03-07-2020, 05:33 PM (This post was last modified: 03-07-2020, 05:34 PM by TheOldPresbyope.)
(03-07-2020, 05:25 PM)leicray Wrote:
(03-07-2020, 04:47 PM)TheOldPresbyope Wrote: @leicray

I don't know the differences between the Ubuntu and Raspbian kernel, but the article does cause me to wonder if you are experiencing your issue on your RPi4B/4GB using moOde's default 32-bit kernel, the 64-bit kernel, or both?

When I can find the time, I will try both kernels and report back. There is also a suggestion from the link that I posted that limiting the size of the RAM can produce a cure. That's potentially a few hours of testing ahead of me.

Thanks for the suggestion.


It's my understanding from https://www.raspberrypi.org/forums/viewt...p?t=255750 that the Ubuntu arm64 kernel wouldn't/won't complete the booting process without that total_mem setting. Seems a different issue. (You'll note also that the setting must be done in a different place with Raspbian.)
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@TheOldPresbyope

Further reading has identified an interesting issue about the Pi-4 USB support. First, some USB audio devices identify themselves as HIDs even though they are not actually a human interface device. Secondly, there has been a firmware bug in the EEPROM of some Pi-4s that causes problems with HIDs in general. I plugged the soundKey into a Windows 10 PC and it does correctly identify itself as an audio device, rather than an HID, in Device Manager.

In spite of that reassurance, I went ahead and performed an update of the Pi-4 EEPROM to version 000137ad in the hope of a cure. No such luck, I'm afraid.

The Pi-2B which I ordered yesterday from eBay should arrive on Wednesday.

Many thanks for your interest in this problem and for your help. Much appreciated.
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, Cyrus soundKey Archives

The ONE Cast system

With Cyrus ONE Cast you can stream music in high-quality directly from your phone using Spotify, Deezer, Amazon Music, Apple Music, Qobuz, Tidal – in fact, almost any streaming service. If you have voice assistant smart speakers on the same wifi network, you can use voice commands to send music directly to your ONE Cast smart amplifier or even set as part of a group for a true multiroom audio experience

As the centre of your new smart home audio system, Cyrus ONE Cast will connect directly to virtually anything that produces audio. From mobile phones, laptops and games consoles to record players radios. You can even connect your Smart TV to ONE Cast using HDMI. It even features a class-leading headphone amplifier for late-night listening.

One Cast has been designed with our latest generation hybrid class D amplifier technology to reduce noise, jitter and increase the overall listening experience.

The Cyrus ONE Cast is arguably the most innovative smart amplifier available today. Boasting 100 watts per channel, and using bleeding-edge technology developed entirely at our Cambridge headquarters, it is capable of driving any loudspeakers with unerring ease.

The perfect upgrade from our ONE Series family.

Just open your chosen music streaming service, play some music and select the ‘now playing’ screen. Now you simply connect to ONE Cast just as you would with any other smart speaker on the market. No need for a smart audio app, ONE Cast takes care of that for you. ONE Cast connects to the internet over Wi-Fi, allowing you to place it anywhere, this Wi-Fi amplifier can be controlled anywhere in the house.

Just like a Smart Speaker, you simply connect directly to ONE Cast using Spotify, Apple Music, Tidal, Qobuz, Deezer, or whichever streaming service you use on your phone. Two taps and the music that was on your phone is now amazing your senses, now that’s one smart amplifier.

ONE Cast is a world first in Hi-Fi, this is a Smart Amplifier capable of connecting to the 3 popular voice assistants. This streamer is part of our ONE Series family of small amplifiers and packs a serious punch and power by using our inhouse Class D Amplifier technology.

As the centre of your new smart home audio system, Cyrus ONE Cast will connect directly to virtually anything that produces audio. From mobile phones, laptops and games consoles to record players radios. You can even connect your Smart TV to ONE Cast using HDMI. It even features a class-leading headphone amplifier for late-night listening.

With Cyrus ONE Cast you can stream music in high-quality directly from your phone using Spotify, Deezer, Amazon Music, Apple Music, Qobuz, Tidal – in fact, almost any streaming service. If you have voice assistant smart speakers on the same wifi network, you can use voice commands to send music directly to your ONE Cast smart amplifier or even set as part of a group for a true multiroom audio experience, the perfect and convenient Streamer that sounds amazing, this is one Powerful Amplifier.

One Cast has been designed with our latest generation hybrid class D amplifier technology to reduce noise, jitter and increase the overall listening experience, allowing us to pack a punch into a small amplifier form factor, outputting 100W per channel, this is a nifty streaming amplifier.

With HDMI built in, ONE Cast can completely replace your soundbar, allowing you to watch the rugby, movies and TV with award-winning audio, ditch the soundbar and pick up our ONE Cast.

The Cyrus ONE Cast is arguably the most innovative smart amplifier available today, Boasting 100 watts per channel, and using bleeding-edge technology developed entirely at our Cambridge headquarters, it is capable of driving any loudspeakers with unerring ease.

The perfect upgrade from our ONE Series family.

Just open your chosen music streaming service, play some music and select the ‘now playing’ screen, now you simply connect to ONE Cast just as you would with any other smart speaker on the market. No need for a smart audio app, ONE Cast takes care of that for you. ONE Cast connects to the internet over Wi-Fi, allowing you to place it anywhere, this Smart amplifier can be controlled anywhere in the house.

Just like a Smart Speaker, you simply connect directly to ONE Cast using Spotify, Apple Music, Tidal, Qobuz, Deezer, or whichever streaming service you use on your phone, two taps and the music that was on your phone is now amazing your senses, now that’s one smart and powerful amplifier.

Cyrus ONE hi-fi amplifier with Bluetooth creates breath-taking audio from a single box. Compact, yet boasting an incredible audio specification. Send Bluetooth from your phone, directly connect a record player to the built-in Phono Stage, or plugin Google’s Chromecast audio for CD quality streamed music. It also has sound for pound, one of the best headphone amplifiers money can buy. The Cyrus ONE is the standard by which others are measured. Check out our extended ONE Series for solutions to your audio needs, a powerful amplifier for your audio needs.

Simplicity

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

The ONE also has serious ‘Head-Fi’ credentials as the built-in Class AB headphone amplifier is exceptional.  The full power of the large toroidal transformer is diverted to power the headphone section when headphones are plugged in. This produces a dynamic range and level of control rarely seen in even dedicated headphone amplifiers.

Another innovation from our design team and implemented in Cyrus ONE is the ‘SID’ system. This stands for ‘Speaker Impedance Detection’ system. When powered on speakers connected are measured and automatically calibrated itself to deliver the best possible performance.

Cyrus ONE Design Objectives

Our over-arching design objective with the Cyrus ONE was to craft a powerful amplifier, a  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, a compact hifi amp that boasts an impressive listening experience.

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, such as our Stereo 200.

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, this is a seriously powerful amplifier.

The Cyrus ONE HD is a High-resolution integrated stereo amplifier ideal for use with your TV, Games console, laptop or desktop PC as well as many other audiophile sources.

The ONE HD builds upon the concept of the original Cyrus One, adding digital inputs including asynchronous USB, optical Toslink and coaxial digital inputs. All of these inputs are configured to work at high-resolution, up to 32bit, and are configured to get the very finest sound from whatever source you have.

The amplifier topology has been significantly updated beyond that of the original Cyrus ONE. Now in its fourth generation, our Hybrid Class-D design is now further refined with the signal path having been given a complete overhaul, this is a stereo amplifier with a serious amount of power behind it.

Cyrus design philosophy has been one of marginal gains. We have examined every performance critical component, upgrading wherever possible to improve the preamplifier stage, the power supply and the filtering. The result is an integrated amplifier with a host of digital inputs that is a sea change product in the development of the brand.

Bluetooth Enabled – aptX®HD:

aptX® HD compatible Bluetooth enables you to stream better than CD quality 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 setup. This allows everyone in the family to enjoy their music from their portable devices quickly and easily.

Digital and analogue inputs:

Asynchronous USB, optical and SPDIF inputs enable you to connect your PC, TV, Games Console, CD player, indeed virtually any source, directly to the Cyrus ONE HD. Four analogue inputs include RCA terminals for a turntable and an AV input that can be set to fixed gain in order to integrate with a separate AV amplifier.

Class AB Headphone Amplifier:

Uniquely, when headphones are connected, the large toroidal transformer is switched to power just the headphone section. These huge reserves of power result in a high power, high voltage class AB headphone amplifier that will drive almost all headphones with ease. The resulting musical performance is on a par with most standalone headphone amplifiers

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 HD to any brand of loudspeaker has suddenly been made so much easier.

Cyrus soundBuds have been engineered to deliver exceptional fidelity and dynamics, even when you’re in a noisy environment, such as a train or gym. Completely wireless and completely stereo, you just sync to your phone and get on with your day with these handy bluetooth earbuds which are true wireless stereo.

soundBuds are supplied with the Cyrus ‘recharging’ case, allowing you to recharge up to three times without connecting to a separate power source. Simply place the soundBuds back in their holder and they recharge, check out our other mobile range, soundKey

Sweat-resistant and durable, these bluetooth earbuds provide the perfect soundtrack to your active lifestyle, see this review

Our soundBuds provide Cyrus quality audio with no cables or fuss. These new earbuds feature ‘True Wireless Stereo’ Bluetooth connectivity and pack a terrific sonic punch.

Ideal for relaxing, on a commute, or even at the gym, they come with a choice of three soft tips and a special in-ear grip to make sure they stand firm even during vigorous exercise.

The Cyrus soundBuds are not a replacement for your wired IEMs but they are definitely a great option for people with an active lifestyle who don’t want the hassle of cables when exercising or just want to listen to music on their commute to work.

The Cyrus Soundbuds are great as a set of unobtrusive earbuds that will see you bouncing through any gym session.

Cyrus Audio are world leaders in audiophile high-resolution audio DAC technologies. Our amplifier, preamplifier and integrated amplifier products are all market-leading DACs capable of exceptional digital to analogue conversion. We have applied the principles of FPGA DASs, using the incredible speed and accuracy of the latest ESS DACs, combined with our advanced R&D experience in DACs to make the DAC filter slope incredibly shallow. Bu applying a shallow DAC filter slope, we are able to push the audible artefacts of phase discrepancy way beyond the audibility of the human ear.

We use advanced noise-shaping techniques to deliver exceptional DAC performance, which further lowers the noise-floor and provides exceptional sound quality and to develop the most substantial Cyrus DAC Upgrade ever.

Cyrus DACs are amongst the world’s best digital to analogue converters. We develop these DACs in our Cambridge headquarters, in the UK.

The Cyrus QXR DAC is available as a stand-alone product in the award-winning 82DAC and 6DAC integrated amplifiers products as well as the Pre2DAC preamplifier. This DAC is also available as an upgrade to integrated amplifier and preamplifier products from Cyrus which are up to ten years old.

The QXR card upgrade is the most significant improvement to Cyrus amplifiers in recent years. Bringing a world of the highest-resolution digital inputs to products up to a decade old through this High resolution Dac.

QXR works with numerous Cyrus products, not only improving the sonic performance through the addition of a 32bit/768k DAC and all-new asynchronous USB bridge but also substantially improving the performance of the headphone amplifier section of these integrated and pre-amplifiers.

To reserve your place in the upgrade queue, follow the buy link below. To find Cyrus retailer near you, please follow this link to our locations page.

The new QXR card is capable of processing PCM audio to 768k at a 32bit depth and ‘Native’ DSD 512, through the USB input. The high-specification ESS DAC uses asynchronous upsampling to deliver a sublime audio signal regardless of source. Even via the lower resolution digital S/PDIF and Toslink interfaces, incoming signals are ‘reclocked’ to substantially reduce noisy ‘jitter’ and deliver a refined, cleaner audio signal to the pre-amplifier stages of the upgraded product.

 

The improved headphone amplifier, included within the upgrade, reduces the noise floor, providing a much improved dynamic range. Capable of outputting 138mW per channel into 16ohm loads, it can comfortably drive headphones with impedances of up to 64ohm.

Cyrus new soundKey USB Gaming DAC is revolutionising mobile music. It is compatible with iphone, iOS and android mobile and protable devices.

The majority of USB DACs and headphone amplifiers fitted to smartphones or laptops are the cheapest and most plentiful the manufacturer could find. And we all know what the results of that kind of policy are – just listen to the way your laptop neuters your favourite tunes when you plug your headphones into its socket.

At one end of the soundKey there’s a 3.5mm socket for plugging in headphones (or connecting to a system). At the other there’s a micro-USB socket. There’s no need (nor any room) for anything else, take advantage of soundKey’s portability and replace your USB soundcard with it.

In the box Cyrus soundKey USB Gaming DAC provides a cable terminated with a micro-USB at both ends (for use with appropriate Android devices) and a micro-USB/full-size USB cable (for use with laptop or desktop computers).

Those wishing to use an Apple phone or tablet will need the Apple camera kit, but using a dongle to attach an external USB DAC to a smartphone is far from uncommon, so it’s an acceptable compromise.

The soundKey is ready to handle a wide range of digital audio file types, most pertinently MP3, AAC and FLAC – and can handle files up to 24-bit/96kHz resolution. It requires Windows 10, Android 5 (or above) and iOS 9 (or above) of its source machine.

Comparison with our current favourite at around this price, AudioQuest’s DragonFly Black, highlights the soundKey’s relative shortage of out-and-out dynamic heft – but at the same time, the Cyrus achieves the remarkable feat of making the Black sound like something of a blunt instrument. It’s significantly more revealing, more open and more detailed than the AudioQuest.

Gaming soundKey is the ultimate USB soundcard for gamers on the go.

If we’re asked to make a trade-off between transparency and ultimate dynamism, we’ll come down on the side of the Cyrus every time.

The Cyrus ONE linear is a premium Bookshelf Speaker system, which, whilst designed to perfectly augment the Cyrus ONE amplifier system, provides exemplary performance with a whole host of audio systems.

The ONE linear is engineered with a classically ‘British’ linear frequency response curve. The objective is complete neutrality, allowing the full character of the music to be revealed. A loudspeaker, however, can only be truly perfected if it is known which amplifier system will be driving it. In this case, the ONElinear has been optimised for use with our own hybrid Class D amplifier topologies, the perfect Bookshelf Speaker for use with our ONE Series, the best British Speakers for your British Amplifiers.

The ONE linearbass/mid driver uses a double-wound copper-coated aluminium voice-coil. As well as being light, this produces a stronger induced magnetic field and hence ‘grip’ over hard to control bass frequencies. The voice coil is bonded to a carefully profiled KEVLAR cone material. This material is light and responsive, carrying limited inertia and retaining its shape and hence audio characteristic even when pushed hard. The speed and accuracy of the resulting bass response is remarkable for a speaker of the size.

The ‘tweeter’ or treble unit is a textile soft-dome, capable of meaningful response well beyond the limits of human hearing. Refined and balanced, the high-frequencies are never ‘aggressive’ or harsh, yet retain the full detail of the source recording.

They’re made in the UK, an excellent option when looking for British Speakers for your Hi-Fi system.

The crossover uses high-quality electrolytic capacitors to maintain the signal integrity and a smooth phase response through the transition from bass driver to tweeter. This again contributes the even response.

The cabinet has been developed using advanced computer modelling with ‘Delayed Cumulative Spectral Analysis’ to reduce the contribution of cabinet noise to levels more than 35dB below the driver output. The same computer modelling is also used to fine tune the crossover to ensure a consistent performance, even when listening ‘off-axis’.

The ONE linear is rear-ported and designed to be positioned between 10-30cm from a rear wall. This will optimise the bass response and mid-range clarity, although some experimentation with the position is advised as this will be room-dependent.

Cyrus Audio has a variety of social media channels with a wide range of information and chat. Join our community and discover, experience and share all things #CyrusAudio.

Designed & Engineered in the United Kingdom

Cyrus Cadence App

Cadence allows you to wirelessly browse and select music through your Cyrus unit. Control most of the playback functions of your Cyrus streaming unit with a flick or tap of a finger on your phone or tablet.


Latest Products

Cyrus Audio LTD

Cyrus Audio Ltd, Registered office: Ermine Business Park, Huntingdon, Cambridgeshire, England, PE29 6XY Company Registration Number: 5158466 - V.A.T Registration Number: 844 4689 89

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Cyrus soundKey Archives

Cyrus Soundkey sets mobile music free

The new Cyrus Soundkey, an ultra-portable DAC/headphone amp designed to upgrade the sonic quality of audio played back from smartphones and computers, will be available in South Africa soon.

The tiny, ultra-slim device easily connects to iPhone and Android smartphones, as well as portable and desktop computers. In the case of iPhones, however, a Lightning camera kit is required for the connection.

The Soundkey features a small but robust aluminium casing and is compatible with a range of music file formats, including AAC, FLAC and MP3. It plays back files of up to 96 kHz/24-bit resolution, and there’s no need for batteries or charging as DAC draws its power from the source.

Cyrus claims the high-efficiency circuitry of the Soundkey minimises power draw from the device it’s connected to, while gain is ample to drive even high-impedance headphones.

The Cyrus Soundkey comes in a choice of four colours – black, red, blue and purple – and is expected to go on sale in South Africa at the end of May. The provisional recommended retail price is R2 299, including VAT.

The Audio Video Boutique

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