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Put simply, Cyrus’ soundKey improves your music...vastly 

You think the sound is ok when you plug your expensive headphones into your phone? Wait until you hear this!

To explain a bit more scientifically, music is stored on your phone in various types of digital files. The DAC (Digital-to-analogue Converter) in most phones, laptops and tablets is designed to hit a cost – that means it’s never going to deliver the kind of audio quality that your music files or streaming services are actually capable of delivering.

SoundKey unlocks your audio, by accessing the raw digital files on your device and processes them using our special hi-fi DAC and amplifier. The analogue music output from soundKey delivers much more detail, more impact, greater precision and a good dollup of WOW.

How is soundKey different to other DACs?

Firstly, the size and design. If you are using your phone as your source of music, you are likely to be on the move. Therefore, being small and lightweight is key. The Cyrus soundKey weighs around 16 grams, so it’s no extra burden on your pocket or bag. From a design perspective, smooth rounded edges enable it to feel more like an integral part of the cable without catching or snagging on anything.

Secondly, the Cyrus soundKey has been designed to be an extremely low current device. Why is this important? We have deliberately not put a separate battery inside the Cyrus soundKey to keep it small, light and prevent you from having yet another thing you need to charge. Therefore it relies on the battery in the phone to provide it with power. The more power an external DAC draws, the quicker it will drain your phone battery. Other DACs typically drain 100mA - Cyrus soundKey has been designed to draw only 50mA.

Finally, it’s made by us, Cyrus. We have over 30 years of designing and tuning audio components to bring the very best out of a product, and provide a better music experience for our customers.

Unbelievable Sound Quality

• Improved clarity, more realistic sound

• Works with Windows 10, Android 5+ and iOS9+ (all require OTG connection)

• 3.5mm Jack for headphones connection

• Robust aluminium casing

• Extremely low current, conserving your phone’s battery life

• Compatible with a wide range of audio format, including MP3, AAC, and FLAC

• Can handle High Resolution audio files up to 24bit/96kHz.

• Size 5.4cm x 2.3cm x 0.8cm

• Weight 18g

*Requires Apple Camera Kit for connection to iOS devices

Q. Which devices is Cyrus soundKey compatible with?

Android: OTG compatible devices, running OS 5.0 (Lollipop) and above

Apple: Devices running iOS 7.0 and above, using the Apple Lightning to USB Camera Adapter

Windows Phones: USB dual role devices, running Windows mobile 10 or later

Laptops: Works with any computers with USB connection

Q. What headphones will the Cyrus soundKey drive?

Headphones with impedances between 16 & 64 Ohms.

Higher impedances will work, but will not be able to be louder

Q. What is the output power of the soundKey?

2 x 138mW into 16 Ohms at 1% THD+N.

Q. Will the Cyrus soundKey work with Bluetooth wireless headphones?

No, the soundKey is designed to work with wired headhphones.

Q. How much power does the soundKey use?


Q. What quality files can the soundKey play?

Can handle High Resolution audio files up to 24bit/96kHz.


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We promise a magnificant music adventure...

Powersound is a High End Audio / Video reputable distributor and installer of Home Audio and Car Audio products since 2000. Quality, Reliability, Professionalism, Communication and Support. And that is what we genuinely believe Customer Relationships should be all about.


2 Ifigenias Street, Strovolos 2007 Nicosia - Cyprus
Tel.: 22515959