Cayin - RU7 (Unboxed)
Portable Discrete 1-Bit DAC & AmpGET 18% GST INPUT
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Chi-Fi
Excellence
Ideal for Audiophiles
These DAC & Amps are designed for discerning music lovers. If audio quality is important to you, a set of DAC & Amps like these would be ideal.
You can expect these DAC & Amps to present you with a refined listening experience. The audio quality exhibited by these DAC & Amps is a beautiful mix of musicality, technical brilliance and high precision.
These DAC & Amps deliver a spacious & open soundstage that makes you feel you are sitting at a live concert. Experience the magic and delve into pure sonic tranquility!
Ideal for Commuting
If you’re someone who enjoys listening to music while commuting. These portable Amps & DACs allow you to listen to your favourite track without compromising on the audio quality
Best Suited for Portable Use
For those who value them, being able to carry their favourite DAC & Amp equipment when they are on the move is invaluable.
These DAC & Amps offer the ultimate portability experience without sacrificing sound quality. If you’re someone who appreciates cutting-edge engineering, quality sound and portability, then look no further.
Designed to be trusty companions, these DAC & Amps are cleverly engineered with the latest technology to offer the ultimate combination of portability & Hi-Fidelity!
4.4mm
Balanced Output
Discrete 1-Bit DSD
DAC
Pair with Laptop via USB
A majority of people use a laptop as the primary source device to listen to music or watch movies. Since the laptop is an essential part of the audio chain there are headphones and devices designed to work a laptop or computer system flawlessly. With the availability of USB connectivity, it becomes easier to pair various devices like an Amp, DAC or even headphones without worrying about drivers or any additional piece of software.
Upto 400mW @32Ω
Power Output
Connect With
USB-C
Metal
Build
Volume Controls
If your DAC & Amps include volume controls or volume rockers, you can easily change the volume with a button press or volume knob turn.
DAC & Amps that have volume controls make its operation incredibly simple; turn up the volume on your smartphone or your source devices and then change the volume on DAC & Amps to the desired level.
This design feature allows you to have complete control over the desired volume according to your listening preferences.
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Customer Returns
Returned headphones are fully functional products that have left the warehouse and therefore can no longer be sold as new as their packaging has been opened. The product may have been used once or twice by the customer who returned it.
Transit Damages
Sometimes we receive headphones in damaged packaging due to shipping accidents. These are brand new headphones with cosmetic flaws on the packaging.
Save Upto 15%
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All Original Accessories
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Sets a New Benchmark For an Ultra-Portable DAC & Amp
Cayin is committed to creating the best audio gear and distributing Hi-Fi products. Cayin's audio devices have distinct cultural overtones and fall within a broad pricing range. One such product that was well ahead of its time, the RU6, now gets an upgrade in the form of RU7. It is a USB-powered ultra-portable 1-Bit Resistive Ladder DAC and amplifier.
Cayin designed a micro-miniaturized 1-Bit DAC circuit from discrete components to convert digital signal to analogue signal through a fully differentiated 4-ch DAC architecture. A resistor network composed of 128 pieces (4 x 32) of high-precision thin film resistors makes up the 1-Bit DAC circuit. Cayin's well-liked N7 Digital Audio Player has the same design architecture. After going through a 3-level active LPF, the resistor network's output will be changed to a single-ended signal for volume adjustment.
Cayin designed a micro-miniaturized 1-Bit DAC circuit from discrete components to convert digital signal to analogue signal through a fully differentiated 4-ch DAC architecture. A resistor network composed of 128 pieces (4 x 32) of high-precision thin film resistors makes up the 1-Bit DAC circuit. Cayin's well-liked N7 Digital Audio Player has the same design architecture. After going through a 3-level active LPF, the resistor network's output will be changed to a single-ended signal for volume adjustment.
It has excellent digital audio capabilities with user-selectable All-to-DSD available with the Cayin RU7. It supports native DSD from DSD64 to DSD256 (Direct Stream Digital) and PCM (Pulse Code Modulation) up to 384kHz. Its Audio Bridge will receive various audio formats and undergo highly accurate signal amplification. Before being fed to the discrete 1-Bit DAC circuit, all-digital audio signals are converted to the specified DSD format (DSD64, DSD128 or DSD256).
Cayin has designed the amplification circuitry with dual amplifiers in parallel, providing 4-CH high power Balanced driven output. The second phone amplifier is a parallel unity gain inverting phase amplifier. You get an impressive upgrade in phone output power with 3.5mm SE, 160mW @32 Ohms, 4.4mm BAL, 400mW @32 Ohms.
The shared line-out function will configure the 3.5mm or 4.4mm phone output into fixed voltage output (bypassing volume control): 3.5mm SE, 160mW @32 Ohms, 4.4mm BAL, 400mW @32 Ohms. The line out voltage is carefully selected to retain as much detail and dynamic of the 1-Bit DAC with minimum noise and distortion. This functionality enables you to connect the RU7 to a portable/desktop amplifier or home audio system and use it as a miniature 1-Bit DAC.
Discrete Resistor Network DAC circuit is very demanding on incoming data integrity Cayin recommends keeping the digital volume of mobile phones at maximum output to safeguard the quality of the digital audio signal. Cayin has developed its discrete resistor network volume control with 100 steps volume control. This design is done through 3 segments of resistors and switching relays, offering precise control over a volume range, satisfying even the need of the most sensitive IEM users. The segment ranges from Segment 1: 1-49, Segment 2: 50-79, and Segment 3: 80-100.
RU7's circuitry is split into dual 6-layer PCB, with digital and analogue circuits installed in separate boards to minimise interference. This design architecture safeguards signal integrity, making sure the noise from the reference clock and DSP will not bleed into the amplification circuit.
A discrete resistor network is a low-power DAC circuit when compared to other highly integrated DAC chipsets, minimises power drain from a mobile source. Redesigned amplification circuit increases output power dramatically while maintaining the overall power drain at 100-110mA. Low power consumption allows RU7 to be compatible with the following digital audio sources: Android-based mobile devices, iOS and iPad OS mobile devices, macOS computers, Windows 7/8/8.1/10 computers, and Digital Audio Players with USB Audio output.
All surfaces are smoothly curved to enhance the look and feel of the RU7. The small and lighter chamfering is done for better handling. The 128*64 pixel OLED screen displays playback information with good visibility displaying all relevant information. The hardware volume button conveniently controls volume and acts as a menu selection button when entering the mode setting.
It has excellent digital audio capabilities with user-selectable All-to-DSD available with the Cayin RU7. It supports native DSD from DSD64 to DSD256 (Direct Stream Digital) and PCM (Pulse Code Modulation) up to 384kHz. Its Audio Bridge will receive various audio formats and undergo highly accurate signal amplification. Before being fed to the discrete 1-Bit DAC circuit, all-digital audio signals are converted to the specified DSD format (DSD64, DSD128 or DSD256).
Cayin has designed the amplification circuitry with dual amplifiers in parallel, providing 4-CH high power Balanced driven output. The second phone amplifier is a parallel unity gain inverting phase amplifier. You get an impressive upgrade in phone output power with 3.5mm SE, 160mW @32 Ohms, 4.4mm BAL, 400mW @32 Ohms.
The shared line-out function will configure the 3.5mm or 4.4mm phone output into fixed voltage output (bypassing volume control): 3.5mm SE, 160mW @32 Ohms, 4.4mm BAL, 400mW @32 Ohms. The line out voltage is carefully selected to retain as much detail and dynamic of the 1-Bit DAC with minimum noise and distortion. This functionality enables you to connect the RU7 to a portable/desktop amplifier or home audio system and use it as a miniature 1-Bit DAC.
Discrete Resistor Network DAC circuit is very demanding on incoming data integrity Cayin recommends keeping the digital volume of mobile phones at maximum output to safeguard the quality of the digital audio signal. Cayin has developed its discrete resistor network volume control with 100 steps volume control. This design is done through 3 segments of resistors and switching relays, offering precise control over a volume range, satisfying even the need of the most sensitive IEM users. The segment ranges from Segment 1: 1-49, Segment 2: 50-79, and Segment 3: 80-100.
RU7's circuitry is split into dual 6-layer PCB, with digital and analogue circuits installed in separate boards to minimise interference. This design architecture safeguards signal integrity, making sure the noise from the reference clock and DSP will not bleed into the amplification circuit.
A discrete resistor network is a low-power DAC circuit when compared to other highly integrated DAC chipsets, minimises power drain from a mobile source. Redesigned amplification circuit increases output power dramatically while maintaining the overall power drain at 100-110mA. Low power consumption allows RU7 to be compatible with the following digital audio sources: Android-based mobile devices, iOS and iPad OS mobile devices, macOS computers, Windows 7/8/8.1/10 computers, and Digital Audio Players with USB Audio output.
All surfaces are smoothly curved to enhance the look and feel of the RU7. The small and lighter chamfering is done for better handling. The 128*64 pixel OLED screen displays playback information with good visibility displaying all relevant information. The hardware volume button conveniently controls volume and acts as a menu selection button when entering the mode setting.
Bespoke Protective Case
The RU7 comes with a handmade magnetic leather case made of soft leather. A tight-fitting protective cutout specifically made for RU7 provides an elegant presentation. Additionally, two spherical metal plates with adhesive tape pads are included in the package.
Type-C cable
This high-quality cable can be used to connect it to your mobile devices. It is made of high-purity materials enabling lossless signal transmission.
USB-A to C adapter
This adapter allows you to use the included Type-C cable to connect to your PCs and other sources.
Discrete 1-Bit DAC architecture is typically found on heavy-duty setups. RU7 packs all these in a compact form factor and has seen improvements when compared to its predecessor, the RU6. It's an incredible DAC if you are someone who prefers pure analogue sound.
All You Need To Know About The Cayin RU7
WHAT YOU WILL GET
1. Cayin RU7 Dongle DAC
2. Type-C Cable
3. USB A to C Adapter
4. User Manual
5. RU7 Protective Case
WHAT YOU WILL NOT GET
1.Original Packaging of Cayin RU7
Fully Balanced Resistor
Networks
Discrete 1-Bit DSD DAC
Line Out
3.5mm Single-Ended (Shared)
4.4mm Balanced (Shared)
Type C: USB Audio Input
In: PCM 44.1kHz ~ 384kHz
DSD64/128/256
Native
0.96 inch 128x64 OLED
CNC Aluminum
3.5mm (SE): 160mW @32Ω
4.4mm (Bal): 400mW @32Ω
3.5mm (SE): 20Hz-42kHz (±0.5dB) (PCM to DSD256)
4.4mm (Bal): 20Hz-42kHz (+0.5dB) (PCM to DSD256)
3.5mm (SE): 0.006% (1kHz, Output: 1.0V)
4.4mm (Bal): 0.006% (1kHz, Output: 1.4V)
3.5mm (SE): 115dB (20Hz-20kHz, A-Weighted)
4.4mm (Bal): 115dB (20Hz-20kHz, A-Weighted)
3.5mm (SE): 114dB (20Hz-20kHz, A-Weighted)
4.4mm (Bal): 112dB (20Hz-20kHz, A-Weighted)
3.5mm (SE): 76dB (1kHz, 20Hz-20kHz)
4.4mm (Bal): 92dB (1kHz, 20Hz-20kHz)
3.5mm (SE):0.5Ω
4.4mm (Bal): 1.0Ω
3.5mm (SE): 1.2Vrms (Fixed, 1kHz@10kΩ)
4.4mm (Bal): 2.4Vrms (Fixed, 1kHz@10 kΩ)
3.5mm (SE): 0.02% (1kHz, 20Hz-20kHz)
4.4mm (Bal): 0.02% (1kHz, 20Hz-20kHz)
3.5mm (SE): 114dB (20Hz-20kHz, A-Weighted)
4.4mm (Bal): 114dB (20Hz-20kHz, A-Weighted)
3.5mm (SE):113dB (20Hz-20kHz, A-Weighted)
4.4mm (Bal): 112dB (20Hz-20kHz, A-Weighted)
3.5mm (SE):100dB (1kHz, 20Hz-20kHz)
4.4mm (Bal): 102dB (1kHz, 20Hz-20kHz)
3.5mm (SE):0.5Ω
4.4mm (Bal): 1.0Ω
Don't sweat it, this
Cayin - RU7 (Unboxed) comes with a 1 Year 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.
Have a question? Get in touch!
Check out the most common questions our customers ask. Still have questions? Talk to our Headphone Gurus.
How does a DAC make a difference to the sound?
Our smartphones have become our default source of music. The only problem here is they are very convenient for music listening, but smartphones aren't made to sound great. A digital-to-analogue converter or DAC chip converts digital music files to an analogue signal output from your phone. All phones, laptops, and really any device with a 3.5mm output would have an inbuilt DAC. Unfortunately, most smartphone DACs are woefully inadequate in giving you a good-quality sound output. A dedicated portable DAC is a powerful device that connects to your smartphone through Bluetooth, USB-C, or Lightning cable and bypasses the phone's built-in DAC. The DAC can decode high-resolution audio up to the highest formats and can have a profound effect on the sound, making your listening experience on your headphones more engaging.
Do I really need a DAC for my Headphones or IEMs?
Most smartphones and laptops with a 3.5mm output would have an inbuilt DAC. But they usually sound basic and can make listening to music on nice pair of headphones boring. They are also, simply put, not capable of playing high-resolution audio formats. A dedicated DAC will decode the audio format you are listening to, reproducing minute details accurately to be played back on your headphones or speakers. Good DACs can make music sound more detailed, lifelike and accurate, even if you may be streaming music over Spotify or other streaming services. If you pair your headphones with a decent DAC, you'll get the finest results from a high-resolution streaming service like Apple Music or Tidal. Using a dedicated DAC is a great way to start if you have high-quality headphones and want them to sound their best.
How do I connect a DAC to my smartphone or laptop?
If you're using an Android phone,
Android phones usually offer a Type-C port for charging and data transmission. DACs in general come with USB Type-C male connectors, which can be paired easily to your smartphone.
If you're using an iOS device with a lightning port,
iOS devices like Apple smartphones have a Lightning port for charging and data transmission. DAC manufacturers in general provide a Lightning cable or a Lightning connector, which terminates to female Type-C. If not, it is simple to buy the connector or the Type-C to lightning cable separately.
If you're using a Laptop with Windows
Laptops have a USB-A port, and DACs feature Type-C to USB-A connectors that make it easy to connect the two devices. For some DACs to function flawlessly, drivers may need to be installed.
If you're using a Mac,
A Mac usually has a USB-A port, and DACs feature Type-C to USB-A connectors/cables that make it easy to connect the two devices. For some DACs to function flawlessly, drivers may need to be installed.
If your DAC supports Bluetooth,
Some DACs also support Bluetooth, so you may stream music wirelessly while listening to music by simply pairing your phone with the DAC and connecting your preferred earphones or IEMs.
Moreover, Bluetooth DACs offer app support, giving you access to a variety of filters, EQ settings, and much more.
Will this DAC & Amp be able to drive my Headphones or IEMs?
The Cayin RU7 DAC & Amp is a portable DAC ideally meant to be used along with IEMs when listening to music on the go or with easy-to-drive headphones.
In general, these are not the best suited to use along with high-impedance headphones or full-sized open-back headphones, and we’d recommend getting something with a higher output power, like a dedicated desktop amplifier.
What difference will the 4.4mm or 2.5mm balanced output make to the sound?
Portable DACs usually give you a simple 3.5mm single-ended output wherein you can plug your IEMs into them. But nicer DACs also feature a Balanced output, usually through a 2.5mm or 4.4mm port. IEM manufacturers have started including Balanced cables with a 2.5mm or 4.4mm plug to take advantage of the balanced output. And several upgrade cables are now available for virtually all IEMs having detachable cables that also feature the 2.5mm or 4.4mm plugs.
A balanced output on your DAC, in general, minimises crosstalk between the left and the right channel and can make your music sound open with added depth and layering. It also offers more power and less distortion at higher volumes and can make the bass sound tighter and more deliberate.
What is the warranty period on the Cayin RU7 and how do I claim warranty?
The warranty period of the Cayin RU7 is of 1 year. In order to claim warranty, please visit our Cayin Warranty Page here. We are very helpful guys, just saying
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