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Cayin - RU6
Portable R-2R DAC & Amp With USB-C Connection24 Hours
Delivery
Chi-Fi
Excellence
1 Year of
Warranty
4.4mm
Balanced Output
Connect With
USB-C
Upto 213mW @ 32Ω
Power Output

RAGHAV SOMANI
Headphone GuruINNOVATIVE 24BIT DISCREET R-2R RESISTOR LADDER DAC CIRCUIT
The Cayin RU6 features a self-developed 24bit discrete R-2R resistor ladder circuit that can decode up to 384kHz PCM audio. The basic idea of the R-2R ladder is a matched pair of resistors, the first is “R” and the other is “2R'' which has twice the value of R. To achieve 24 bit decoding, RU6 equips 48 units of resistors (23 x R and 25 x 2R), and that’s for one channel. So for a stereo 24 Bit R-2R decoder, RU6 features 96 units of resistors for life-like audio reproduction. With the advent of the R-2R circuit, Cayin RU6 establishes itself as master of the fully-discrete resistor DAC topology in portable audio.




OFFERING OVERSAMPLING AND NON-OVERSAMPLING DA MODES
Cayin offers both Oversampling and Non-oversampling DA modes in RU6. For Oversampling mode, the Digital Audio Bridge will upsample the digital audio data to 384kHz through digital filters. This will enhance the resolution, reduce noise and improve the anti-aliasing of the digital signal. The Oversampling DA mode will offer a noticeable improvement on details and frequency extension. The playback is clean and sharp with a darker background. On the other hand, NOS DA mode maintains the sampling rate of the original bit-stream and playback will become very musical with a natural and organic presentation.




EQUIPPED WITH FULLY ANALOGUE RESISTOR ARRAY VOLUME CONTROL
Most USB DAC/Amps will rely on the volume control of your mobile phone to control the volume of the headphone output. Technically this was not a viable solution to Cayin RU6. Understanding this issue, Cayin developed a fully analogue resistor array volume control circuit that provides 99 steps volume control through 9 segments of resistors and switching relays. Resistor Array volume control features a very high-quality volume control design, extremely transparent when implemented correctly and it is found in a lot of high-end preamps and integrated amplifiers.




FEATURING DUAL CIRCUIT BOARD LAYOUT FOR DSD AND PCM PLAYBACK
To minimise audio signal interference, Cayin has split the RU6's circuit into two 6-layers PCB, with digital and analogue circuits installed on separate boards. This safeguards the audio signal integrity and ensures the noise from the reference clock and DSP do not bleed into the amplification circuit. This architecture in turn delivers artefact free audio every single time. This circuit design combined with the R-2R architecture enables the RU6 to support hi-resolution PCM and DSD audio formats with support for 384kHZ PCM and DSD 64/128/256 natively.






INTUITIVE AND VERSATILE OPERATION WITH LOW POWER CONSUMPTION
Discreet R-2R circuitry is a low power DAC circuit when compared to other highly integrated DAC chipsets. This architecture minimises power drain from the mobile source allowing you to enjoy music without the need to worry about battery drain. USB-C connection offers compatibility with a wide range of phones, consumer electronics and computers. The hardware has been designed in an intuitive manner, where the volume buttons double as menu selectors and the OLED screen displays playback information accurately. The Cayin RU6 also offers two gain settings to enhance performance with various IEMs and headphones. All this is wrapped in a 28g package.





DAC | 24bit Discrete R-2R |
HEADPHONE | 3.5mm + 4.4mm Balanced |
USB | Type C USB Audio Input |
DISPLAY | 0.96 inch 128x64 OLED |
DIGITAL DECODING | PCM: 44.1kHz ~ 384kHz DSD: DSD64/128/256 |
CONTROL | Volume +/-, Mode |
DIMENSION | 65mm x 25.4mm x 13.7mm |
CHASSIS | CNC Aluminum |
NET WEIGHT | ~28g |
POWER RATING | 138mW @ 32Ω |
FREQUENCY RESPONSE | 20Hz-20kHz (å±0.5dB) |
THD+N | 0.032% (1kHz, Output: 0.5V) |
DYNAMIC RANGE | 109dB (20Hz-20kHz, A-Weighted) |
SNR | 113dB (20HZ-20kHz, A-Weighted) |
OUTPUT IMPEDANCE | 0.5Ω |
POWER RATING | 213mW @ 32Ω |
FREQUENCY RESPONSE | 20Hz-20kHz (å±0.5dB) |
THD+N | 0.04% (1kHz, Output: 1V) |
DYNAMIC RANGE | 110dB (20Hz-20kHz, A-Weighted) |
SNR | 114dB (20HZ-20kHz, A-Weighted) |
OUTPUT IMPEDANCE | 1.0Ω |
BOX CONTENTS | 1. Cayin RU6 |
2. USB C to C cable (shielded) | |
3. USB A to C adapter |
GENERIC NAME | Headphone Amplifier |
COUNTRY OF ORIGIN | China |
IMPORTER DETAILS | Importers Name: Ferrari Video Address: 63/18, 1st Main Road, Gandhi Nagar, Chennai - 600020 Contact No: 044-24420733 |
NET QUANTITY | 1 |


Cayin
Cayin is a premium audio brand hailing from China, that brings the world's best DAPs to the table with its years of experience. Hi-Res audio players are specially designed to produce high-resolution sound through your high impedance headphones and earphones.
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Hi-Res Audio
Cayin's portable audio players feature aluminium chassis, coaxial output, vibrant attractive colors, a gain toggle, and more. With the Cayin audio players, you will only listen to master quality sound and not the same old music ever again. They are compatible with Android and iOS devices. We have a wide range of Hi-Res audio players that fit every buyer's need and budget, from the best brands across the world. Plug in and enjoy a louder and better music experience with sound clarity that makes you feel like you're in a studio.
To ensure 100% customer satisfaction, Headphone Zone offers a 7 Day Test Drive and 7 Day Replacement Guarantee. Our content rich product page is your one stop to get all the required information about the product. We also have a Buying Guide with various comparison posts to help you pick the right Hi-Res audio player. If that isn't enough, our Headphone Gurus are always there to help you out with any other queries that you may have. Call our Gurus to find the best audio player that suits your style and need. Shop for the best Cayin Hi-Res audio player online with the best service from Headphone Zone.
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1 Year Warranty
Don't sweat it, this Cayin - RU6 comes with a warranty
from Cayin that covers manufacturing defects.
All products featured on Headphone Zone are backed by an original manufacturer's warranty.
Read more about Cayin's warranty in India.
"At the RU6's business end sit two headphone outputs: a 3.5mm single-ended socket and balanced 4.4mm Pentaconn socket. Switchable high/low gain assists with headphone/earphone matching."
Read More"The Cayin RU6 offers a different “analog” approach in the world of highly integrated delta-sigma chipset packages& DSP filters. Preserves a tube-like musical quality but with much finer volume control."
Read More"If you are in the market for a very high-end Dongle DAC that delivers a lot more than most — the Cayin RU6 is the one you want. It offers all the features most need, great sound, and good power."
Read More"RU-6 is the 2021 dongle for me, a dongle that will make premium brands sweat. RU-6 value is its naturalism of replay and presenting the flavor of R2R w/o dropping technicalities."
Read MoreYouTube Reviews
Watch the most popular YouTube reviews for the Cayin - RU6
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