Cayin - RU9

Portable DAC & Amplifier

Sale price₹ 49,899 Regular priceMRP: ₹ 49,999
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Talk to a Headphone Guru

1. What is a Pre-Order product?
A Pre-order product is a product that we especially order for you from the brand. Once you place an order with us, we will order it from the brand for you.

2. How do I know when the product will be delivered?
There is a rough timeline on the product availability and once it has been confirmed with the brand, we will inform you.

3. Do you order the product from the brand as soon as I place the order?
We do not immediately order the product but add it in the upcoming order.

4. Will you be giving me updates?
Once we have ordered the product and have a confirmed timeline, we will give you an update.

5. I’d like to make changes to/cancel my order?
You can only cancel/make changes to your order until we place the order with the brand. Since the product is specifically being ordered for you, we will be unable to cancel/make changes once we order the product from the brand.

Defective? Tell us within 7 days. We'll take care of it.

Something wrong with your product? We'll sort it out.

Wrong product, damaged, or missing parts: Let us know within 24 hours of delivery. If it's just an accessory, we'll replace the accessory.

What we'll need:

- Product in original packaging with all accessories

- Unboxing video and images of the parcel


This helps us see what went wrong and move faster.

Manufacturing defect: Let us know within 7 days of delivery. We'll replace or refund.

The process:
1. Raise a request - you'll get a RET number and hear from us by the next working day.
2. Once approved, we arrange pickup.
3. We inspect the product (2-3 working days).
4. Replacement shipped or store credit or refund issued.

A replacement or refund will be issued if:

- The product is found to be defective

- It wasn't damaged while in your possession-

- The same product is returned in original condition - box, MRP tag, manual, warranty card, all accessories



READ THE FULL REPLACEMENT POLICY
1 Year warranty included. You're covered.

This Cayin - RU9 comes with a 1 Year manufacturer's warranty from Cayin, covering manufacturing defects.

Every product on Headphone Zone is backed by an original manufacturer's warranty.

Need support? Start with us. We handle most brands' warranty claims directly, and for the rest, we'll help you connect with the brand.

Read about Cayin's Warranty
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Why Cayin is Special

🇨🇳

Designed in China

🎖️ Established & Reputed

Trust us, our reputation speaks for itself 🏆!


We believe that when a brand has decades of proven excellence, you can invest with confidence knowing your purchase is backed by years of audio engineering expertise. These products come from manufacturers with extensive histories of innovation and unwavering commitment to sonic excellence. Think of them like luxury watch brands their reputation has been earned through decades of consistent quality and innovation.


With their extensive history of innovation and countless satisfied customers worldwide, you can be confident your investment is backed by proven audio engineering expertise and industry leadership 📈.


When you see "🎖️ Established & Reputed" products, expect time tested excellence from manufacturers who've consistently demonstrated mastery in audio engineering for generations.

🙌🏻 Revered by Audiophiles

Audiophiles can be really picky 😤, and if the audiophile community says something sounds good, you can bet it's exceptional! We believe that earning audiophile reverence is like getting a standing ovation from music critics it doesn't happen unless you've truly achieved something special. This audio gear has earned widespread acclaim from audiophiles worldwide, a community renowned for exacting standards and unwavering commitment to high fidelity reproduction.


These discerning enthusiasts particularly value its extraordinary precision in sound reproduction and remarkable capability to create thoroughly immersive listening experiences. The audiophile community's endorsement carries significant weight because of their extensive experience with high end equipment 🏆.


When you see "🙌🏻 Revered by Audiophiles" products, expect audiophile grade excellence that satisfies even the most demanding listeners and consistently exceeds the highest standards.

🐣

Born in 1993

Why we love this DAC/Amp

💎 Premium Economy

Sensible spending meets sophisticated quality in perfect harmony 💫.


We tend to describe premium economy products as finding that sweet spot where exceptional value meets refined performance. Think of it like business class comfort at economy prices you're getting significantly more than what you paid for. These headphones deliver a refined listening experience that rivals more expensive alternatives, making them an intelligent choice for discerning listeners who appreciate both value and excellence.


This thoughtfully curated selection demonstrates our commitment to bringing you outstanding sound quality and robust construction without requiring a significant financial investment. Each product has been meticulously evaluated to ensure it delivers performance characteristics typically associated with higher price brackets.


When you see "💎 Premium Economy" products, expect refined audio experiences that bridge the gap between entry level and high end offerings, delivering impressive clarity and features at accessible price points.


🦈 Serious Audiophiles Only

For those who have ventured deep into high fidelity audio 🎯, the pursuit of sonic excellence becomes an endless journey of discovery and refinement. We believe that serious audiophiles demand equipment that can satisfy the most exacting standards and deliver performance that pushes boundaries. These products represent the pinnacle of acoustic engineering, incorporating advanced technologies and meticulous craftsmanship that enable them to reproduce music with utmost fidelity.


Each product has undergone rigorous evaluation to ensure it delivers exceptional performance that discerning listeners demand, from precise frequency response to impeccable detail retrieval and sophisticated sound staging. These devices incorporate premium components and engineering excellence that justify their position at the apex of audio performance.


When you encounter "🦈 Serious Audiophiles Only" products, expect uncompromising performance that satisfies the most demanding requirements and elevates critical listening to new heights.

🛺 For Audiophiles On-the-Go

In our experience, finding great audio gear that performs well on the move is like discovering a powerful sports car that’s also fuel efficient. Products marked For Audiophiles On the Go are designed to deliver remarkable sound quality without weighing you down. Whether you’re commuting, working remotely, or just travelling light, these products offer the perfect balance of portability and performance 🚶‍♂️.


What makes them special? They’re often compact, lightweight, and built with battery efficient components that don’t compromise on sonic detail. From portable DAC/Amps to foldable headphones and wireless IEMs, this category is for those who demand great sound anytime, anywhere no bulky setups or power bricks required.


When you see '🛺 For Audiophiles On the Go' products, expect: pocket friendly size, reliable battery life, and premium sound wherever life takes you ideal for travel, work, or daily use.

✂️ Use Wirelessly with Bluetooth

We tend to describe Bluetooth audio as wireless freedom with fewer strings attached literally. When you see Use Wirelessly with Bluetooth, it means you can pair your headphones or IEMs with phones, laptops, or even TVs all without reaching for a cable 🎶. It’s convenient, clutter free, and great for everyday listening.


What’s happening behind the scenes is your gear is using Bluetooth codecs like SBC, AAC, LDAC, or aptX to compress and transmit your music wirelessly. Better codecs mean higher quality and lower latency. Of course, there’s a trade off Bluetooth won’t match the quality of wired gear, but today’s advancements have made the gap much smaller than before.


When you see '✂️ Use Wirelessly with Bluetooth' products, expect: tangle free convenience and solid sound quality great for commuting, workouts, or casual listening.


⏳ Battery Life

In our experience, battery life is one of those things that separates a good day from a frustrating one. It's like having a fuel gauge you can rely on longer battery life means less charging and more uninterrupted music. Whether you're on a flight or just commuting across town, this is one spec you don’t want to overlook 🔋.


Technically, battery life refers to the hours your device can play music on a single charge. Today’s headphones and DACs can range from 4 to 40+ hours, depending on things like Bluetooth codec, volume, and active features like ANC. More battery life also means better travel and portability, though it might come at the cost of size or weight.


When you see '⏳ Battery Life' products, expect: longer listening sessions, fewer charging breaks, and stress free portability for music that goes the distance.

🔋 Battery Capacity

We usually think of battery capacity like the size of your water tank it determines how long the tap can run before drying up. In audio gear, higher capacity means more playtime, more power for your amp section, and better performance during high demand usage 🧠. It’s especially important if your gear also powers powerful drivers or amps.


Measured in mAh (milliamp hours), battery capacity helps you gauge how long your headphones, DAC, or amplifier will last between charges. Devices with higher capacity (like 3500mAh+) are ideal for extended use or when you’re away from a power source. Just know, larger capacity often means longer charging time and a slightly bulkier design.


When you see '🔋 Battery Capacity' products, expect: more power and longer playtimes ideal for travel, long workdays, or heavy use without worrying about recharging.

📱 Works Great with Type-C

Don't have a 3.5mm headphone jack on your phone?


No need to worry 📞 We believe these products represent the future of seamless audio connectivity. Think of Type C as the universal language that all modern devices are learning to speak. It's like having a master key that works with your smartphone, laptop, tablet, and practically every new device you'll buy. These headphones connect directly to your Type C port, delivering pristine digital audio without any dongles or adapters cluttering your setup.


The direct Type C connection ensures both convenience and optimal audio performance, maintaining the integrity of your listening experience through a clean digital signal path. You'll enjoy plug and play functionality with universal compatibility, eliminating those frustrating moments of searching for the right adapter.


When you encounter "📱 Works Great with Type C" products, expect seamless connectivity with modern devices and future proof design that grows with your tech ecosystem.

🔗 Connect With Cable

In our experience, there’s still nothing like the dependability of a wired connection when it comes to audio 🎧. We love describing it as the direct flight of music no delays, no turbulence. When a product says “Connect with Cable,” it means you’re getting the most reliable signal path, with zero wireless compression and minimal interference.


Here’s what’s actually happening: a physical cable transmits uncompressed analog or digital signals directly from your source to your gear. This results in lower latency, no signal drops, and consistently better sound especially when paired with a good DAC or amp. It’s ideal for critical listening, gaming, and professional use. The trade off? You’re tethered but for a lot of audiophiles, that’s a small price to pay for sonic purity.


When you see '🔗 Connect With Cable' products, expect: pure, uninterrupted sound quality that lets your gear perform at its full potential perfect for focused, high fidelity listening.

Why it Sounds Amazing

⚙️ DAC Chip

We like to say the DAC chip is the heart of any audio device it’s the part that actually transforms digital files into music you can hear 🎧. Think of it like a chef decoding a recipe to create a delicious meal. The better the DAC chip, the more faithfully it translates your music. And in my experience, a great DAC can completely change how your headphones sound.


Now, here’s what’s actually happening: a Digital to Analog Converter (DAC) takes digital signals (your MP3s, FLACs, or streams) and converts them into an analog waveform your ears can enjoy. Different DAC chips like those from ESS, AKM, or Cirrus Logic offer their own sound signatures, levels of clarity, and noise performance. A good DAC ensures accurate timing, minimal distortion, and exceptional resolution.


When you see '⚙️ DAC Chip' products, expect: clean, detailed audio and better synergy with high quality headphones perfect for anyone upgrading from average sound to audiophile quality.

🚀 Power Output

We like to think of power output in audio gear like engine horsepower, it determines how much muscle your setup really has 💪. Whether you’re trying to drive a pair of power hungry planar headphones or just want headroom for dynamic peaks, power output is the spec you want to check first.


Technically, it refers to the amount of electrical power (measured in mW or Watts) an amp or DAC/Amp combo can deliver to your headphones. More power means better control, improved dynamics, and the ability to handle demanding gear without distortion. But more isn’t always better, too much power with sensitive IEMs can introduce hiss or harshness.


When you see '🚀 Power Output' products, expect: strong driving capability, better dynamics, and optimal performance with headphones that need serious juice to shine.


⚖️ Balanced Output

We often say balanced output is like using both hands to carry something heavy it distributes power evenly and keeps things stable. In audio gear, balanced output helps reduce unwanted noise and interference, especially over longer cables. Think of it as a cleaner, more efficient way to transmit your music, ideal for anyone using high end DACs, amps, or studio grade headphones 🎧. You’ll typically find it on gear with XLR or 4.4mm connectors, and it's a must have if you’re chasing that ultra clean signal path.


Here’s what’s actually happening: a balanced output uses two separate signals, one inverted, so when interference is picked up along the cable, it gets cancelled out when the signals are recombined. The result? Cleaner audio, better dynamic range, and more power output especially when paired with balanced headphones. The trade off? You’ll need gear that supports balanced connections on both ends to really enjoy the benefits.


When you see '⚖️ Balanced Output' products, expect: ultra low noise, more headroom, and better synergy with high impedance headphones or sensitive IEMs ideal for serious listening setups.

🔬 Decodes Upto

When We see "Decodes up to" listed in product specs, We think of it like a music translator that speaks more languages than you’ll ever need. It tells you how far a DAC or audio device can go in handling hi res formats think PCM, DSD, or MQA and at what resolution. 🧠🎶


Technically, this refers to the maximum bit depth and sample rate a DAC can process like 32 bit/768kHz PCM or DSD512. The higher these numbers, the more detailed and lifelike the audio can potentially sound. But remember, real world improvements depend on the recording quality and your headphones, not just specs alone.

Enhance Your Listening Experience On The Go With Cayin RU9

Cayin introduces the RU9, a cutting-edge portable DAC & amp that combines dual AK4493SEQ DAC chips, KORG Nutube 6P1 vacuum tube technology and Gen5 3-stage amplification in a compact 150g package. This versatile device supports high-resolution audio up to DSD512 and PCM 32bit/768kHz, features 3.5mm and 4.4mm outputs with three-stage gain control, and offers multiple power modes including a performance-enhancing Hyper Mode. Complete with Bluetooth 5.1 supporting premium codecs like LDAC and aptX HD, a CNC-machined aluminum chassis, magnetic leather case, and intuitive controls with a 0.96" display, the RU9 represents a premium solution for audiophiles seeking exceptional portable audio performance.

Embeds Dual AK4493SEQ DAC Chips For Exceptional Channel Separation

Cayin RU9 features a sophisticated dual DAC architecture utilising two AK4493SEQ DAC chips in mono mode configuration. This fully differential output design ensures each channel is processed independently, resulting in exceptional channel separation and minimal crosstalk for superior audio performance.

Features An Exceptional 4-Channel Balanced Amplification Circuit For Hi-Fi Audio

Cayin RU9 features an advanced 4-channel balanced amplification circuit, where the audio signal passes through a balanced headphone amplifier utilising two ultra-low-noise Texas Instruments OPA1662 op-amps and four Nexperia power transistors, resulting in exceptional signal stability and minimal interference for superior audio performance.

Fused With Gen5 3-Stage Amplification Architecture For Accurate Audio Output

Cayin RU9 features a high-quality Gen5 3-stage amplification architecture that incorporates six Toshiba 2SK209 audio-grade JFETs, along with a carefully tested KORG Nutube 6P1 dual triode tube.

Stage 1: JFET Buffer Amplifier
Built with low-noise 2SK209 JFETS optimised for buffering.
Stage 2: Nutube Voltage Amplifier
Powered by Nutube 6P1, this stage delivers voltage gain while defining the RU9's unique tube timbres.
Stage 3: Buffer Driver
Selected 2SK209 JFET transistors are employed to create a high-performance source-load circuit. Significantly enhanced the current driving capability of the tube timbre circuit.

Equips XU316 Processor, Anti-Vibration System & Other Components For Enhanced Performance

Cayin RU9 showcases cutting-edge technology with its XMOS XU316 processor, featuring a 16-core 32-bit RISC architecture that supports native DSD512 and PCM 32bit/768kHz playback. Its innovative design includes a custom-engineered anti-vibration system for the Nutube tube, complete with FPC flexible PCB, silicone damping sleeve, and pin suspension system to eliminate interference. When operating in DC Mode, the device automatically activates Hyper Mode, enhancing the amplifier's performance by increasing quiescent current and operating voltage for superior clarity, wider soundstage, and more dynamic punch.

Features Three Distinct Timbre Modes: Classic Tube, Modern Tube and Solid-State

Cayin's engineers have carefully designed two sets of feedback circuits to create the RU9's distinct timbres. Users can easily switch between the three available timbres using the dedicated Timbre button.

Classic Tube Timbre
Without NFB circuitry, stages work independently with local feedback determining overall gain. This creates classic tube amplifier distortion with higher THD, resulting in more thermal noise and richer tube-like sound.
Modern Tube Timbre
A large-loop NFB circuit will determine the total gain. By incorporating NFB over multiple amplification stages, the THD will be reduced significantly. The harmonic distortion characteristics and sound signature lean more towards a modern style, with greatly reduced thermal noise and a slightly cleaner tube sound.
Solid-state Timbre
Built with op-amps and precision-tuned peripheral circuits. Delivers accurate resolution, fast dynamics, and neutral tonality.

Embeds Dual AK4493SEQ DAC Chips For Exceptional Channel Separation

Cayin RU9 features a sophisticated dual DAC architecture utilising two AK4493SEQ DAC chips in mono mode configuration. This fully differential output design ensures each channel is processed independently, resulting in exceptional channel separation and minimal crosstalk for superior audio performance.

Features An Exceptional 4-Channel Balanced Amplification Circuit For Hi-Fi Audio

Cayin RU9 features an advanced 4-channel balanced amplification circuit, where the audio signal passes through a balanced headphone amplifier utilising two ultra-low-noise Texas Instruments OPA1662 op-amps and four Nexperia power transistors, resulting in exceptional signal stability and minimal interference for superior audio performance.

Fused With Gen5 3-Stage Amplification Architecture For Accurate Audio Output

Cayin RU9 features a high-quality Gen5 3-stage amplification architecture that incorporates six Toshiba 2SK209 audio-grade JFETs, along with a carefully tested KORG Nutube 6P1 dual triode tube.

Stage 1: JFET Buffer Amplifier
Built with low-noise 2SK209 JFETS optimised for buffering.
Stage 2: Nutube Voltage Amplifier
Powered by Nutube 6P1, this stage delivers voltage gain while defining the RU9's unique tube timbres.
Stage 3: Buffer Driver
Selected 2SK209 JFET transistors are employed to create a high-performance source-load circuit. Significantly enhanced the current driving capability of the tube timbre circuit.

Equips XU316 Processor, Anti-Vibration System & Other Components For Enhanced Performance

Cayin RU9 showcases cutting-edge technology with its XMOS XU316 processor, featuring a 16-core 32-bit RISC architecture that supports native DSD512 and PCM 32bit/768kHz playback. Its innovative design includes a custom-engineered anti-vibration system for the Nutube tube, complete with FPC flexible PCB, silicone damping sleeve, and pin suspension system to eliminate interference. When operating in DC Mode, the device automatically activates Hyper Mode, enhancing the amplifier's performance by increasing quiescent current and operating voltage for superior clarity, wider soundstage, and more dynamic punch.

Features Three Distinct Timbre Modes: Classic Tube, Modern Tube and Solid-State

Cayin's engineers have carefully designed two sets of feedback circuits to create the RU9's distinct timbres. Users can easily switch between the three available timbres using the dedicated Timbre button.

Classic Tube Timbre
Without NFB circuitry, stages work independently with local feedback determining overall gain. This creates classic tube amplifier distortion with higher THD, resulting in more thermal noise and richer tube-like sound.
Modern Tube Timbre
A large-loop NFB circuit will determine the total gain. By incorporating NFB over multiple amplification stages, the THD will be reduced significantly. The harmonic distortion characteristics and sound signature lean more towards a modern style, with greatly reduced thermal noise and a slightly cleaner tube sound.
Solid-state Timbre
Built with op-amps and precision-tuned peripheral circuits. Delivers accurate resolution, fast dynamics, and neutral tonality.

Features 3 Versatile Power Modes & Supports QC3.0 and PD2.0 Fast Charging

Cayin RU9 features three versatile power modes for optimal performance in any situation. When connected via USB, it operates in Dongle Mode for portable use. With the power adapter connected, users can choose between Battery Mode, which uses USB power with battery backup, or DC Mode, which enables direct power delivery and automatically activates Hyper Mode for maximum performance. The device supports QC3.0 and PD2.0 fast charging protocols for convenient power management.

Equips Magnetic Attachment System & Premium Accessories For Universal Compatibility

Cayin RU9 features a thoughtfully designed magnetic attachment system that seamlessly connects to smartphones and tablets. The package includes a premium magnetic leather case with precise cutouts and integrated backing for secure, stylish protection, along with a high-quality L-shaped USB interconnect cable featuring shielded, tightly braided construction to minimise signal loss. For Android users, a magnetic adaptor ring ensures universal compatibility.

Features Multiple Outputs & Wireless Connectivity For Seamless Pairing

Cayin RU9 offers exceptional versatility with dual audio outputs featuring 3.5mm and 4.4mm connections, each with 3-stage gain and output level control. The device supports comprehensive digital audio protocols, including S/PDIF input/output and USB Audio DAC (with UAC1.0 and UAC2.0 compatibility, including driver-free mode for gaming consoles). Enhanced by Bluetooth 5.1 technology powered by Qualcomm QCC5125, it supports premium audio codecs including LDAC, aptX HD, aptX Adaptive, AAC, and SBC for superior wireless audio transmission.

Features A User-Friendly Design With Premium Controls & High-Quality Display

Cayin RU9 is meticulously designed with user experience in mind, featuring a sleek 0.96" display with adjustable brightness, premium knurled volume knob, and tactile buttons for precise control. At its heart lies the innovative Nutube 6P1 window, precision-cut using laser micro-drilling technology to block EMI while showcasing the tube's warm glow during playback. The intuitive multicolour indicator system efficiently displays the playback details.

Yellow - 44.1kHz/48kHz
Green - 88.2kHz/96kHz
Dark Blue - 176.4kHz/192kHz
Purple - 352.8kHz/384kHz
Light Blue - 705.6kHz/768kHz
White - DSD64/DSD128/DSD256/DSD512
Red - Charging indicator

Crafted With Aluminium Chassis & Optimal Heat Dissipation & Offers Portability

Cayin RU9 embodies elegance in a remarkably compact form factor, weighing just 150g with a slim 15mm profile. Its unibody CNC-machined aluminium chassis showcases meticulous craftsmanship through precision polishing, while an advanced thermal-conductive structure ensures optimal heat dissipation for sustained high performance. This thoughtful design makes the RU9 exceptionally portable and comfortable for extended use, perfect for audiophiles on the move.

Features 3 Versatile Power Modes & Supports QC3.0 and PD2.0 Fast Charging

Cayin RU9 features three versatile power modes for optimal performance in any situation. When connected via USB, it operates in Dongle Mode for portable use. With the power adapter connected, users can choose between Battery Mode, which uses USB power with battery backup, or DC Mode, which enables direct power delivery and automatically activates Hyper Mode for maximum performance. The device supports QC3.0 and PD2.0 fast charging protocols for convenient power management.

Equips Magnetic Attachment System & Premium Accessories For Universal Compatibility

Cayin RU9 features a thoughtfully designed magnetic attachment system that seamlessly connects to smartphones and tablets. The package includes a premium magnetic leather case with precise cutouts and integrated backing for secure, stylish protection, along with a high-quality L-shaped USB interconnect cable featuring shielded, tightly braided construction to minimise signal loss. For Android users, a magnetic adaptor ring ensures universal compatibility.

Features Multiple Outputs & Wireless Connectivity For Seamless Pairing

Cayin RU9 offers exceptional versatility with dual audio outputs featuring 3.5mm and 4.4mm connections, each with 3-stage gain and output level control. The device supports comprehensive digital audio protocols, including S/PDIF input/output and USB Audio DAC (with UAC1.0 and UAC2.0 compatibility, including driver-free mode for gaming consoles). Enhanced by Bluetooth 5.1 technology powered by Qualcomm QCC5125, it supports premium audio codecs including LDAC, aptX HD, aptX Adaptive, AAC, and SBC for superior wireless audio transmission.

Features A User-Friendly Design With Premium Controls & High-Quality Display

Cayin RU9 is meticulously designed with user experience in mind, featuring a sleek 0.96" display with adjustable brightness, premium knurled volume knob, and tactile buttons for precise control. At its heart lies the innovative Nutube 6P1 window, precision-cut using laser micro-drilling technology to block EMI while showcasing the tube's warm glow during playback. The intuitive multicolour indicator system efficiently displays the playback details.

Yellow - 44.1kHz/48kHz
Green - 88.2kHz/96kHz
Dark Blue - 176.4kHz/192kHz
Purple - 352.8kHz/384kHz
Light Blue - 705.6kHz/768kHz
White - DSD64/DSD128/DSD256/DSD512
Red - Charging indicator

Crafted With Aluminium Chassis & Optimal Heat Dissipation & Offers Portability

Cayin RU9 embodies elegance in a remarkably compact form factor, weighing just 150g with a slim 15mm profile. Its unibody CNC-machined aluminium chassis showcases meticulous craftsmanship through precision polishing, while an advanced thermal-conductive structure ensures optimal heat dissipation for sustained high performance. This thoughtful design makes the RU9 exceptionally portable and comfortable for extended use, perfect for audiophiles on the move.

What our Headphone Gurus Say

What we think about Cayin RU9

We don't call ourselves experts, but we actually listen to every piece of gear. So we think that we know what we're talking about.
HECTOR D'MELLO

Headphone Guru
HECTOR D'MELLO

A true stoic, a man of culture, a Harman tuning enthusiast, and a collector of mechanical watches - He is the backbone of our Headphone Gurus team. With his extensive knowledge of headphones and IEMs, he's always ready to answer your questions and engage in insightful conversations.

Talk to a Headphone Guru

A True Mojo Alternative

Finally, a worthy Mojo alternative. The RU9 brings Cayin’s Dual Timbre (Tube vs SS) to your pocket. I wouldn't usually risk traveling with delicate tubes, but the MagSafe case feels bulletproof. Now I can take that lush tube warmth anywhere without the anxiety.

SAIKIRAN SHETTY

Headphone Guru
SAIKIRAN SHETTY

Meet our resident headphone guru and perfume aficionado! With a deep passion for music production, he has refined his skills to expertly recommend the best audio gear.

Talk to a Headphone Guru

Seamless From Desk to Street

The RU9 impressed me with how seamlessly it fits both desk and portable use. It offers flexible power and tuning options, and the MagSafe design makes it easy to live with day to day. A great choice if you want one DAC to cover work, walks, and everything in between.

MAYUR BAHADUR

Headphone Guru
MAYUR BAHADUR

Mayur, a headphone guru, dives deep into J-pop, J-rock, and anime openings. With expert insight on IEMs and headphones, he shows how the right gear can transform and upscale your music experience every time for all listeners.

Talk to a Headphone Guru

Portable Tube Warmth, Cayin Style

Cayin’s reputation comes from pioneering tube sound in portable gear, and the RU9 carries that legacy forward. It brings a distinct tube like warmth and even packs its own battery making it bulkier, but that’s the trade off for that signature Cayin flavour.

THEON LOPES

Headphone Guru
THEON LOPES

Theon is a Headphone Guru who values perfect balance in audio. His patience and extensive experience in the world of sound enable him to recommend the right gear tailored to each listener's needs.

Talk to a Headphone Guru

When You Crave Tube Warmth on the Go

Nothing beats a Portable Tube like the Cayin RU9 at this price. It delivers the rich, relaxed sound you need to truly enjoy your music. Yes, it might be slightly big, but this investment is absolutely worth it if you crave the classic tube sound on the go.

Meticulous Design

Cayin RU9 is crafted with unibody CNC-machined aluminium chassis for impeccable aesthetics.

Display Screen

Cayin RU9 features a display screen that displays the true playback details.

Volume Knob

Cayin RU9 embeds a volume knob in an aesthetic way that allows you to adjust volume conveniently.

Accessories to Get you Started

1. Magnetic Leather Case
2. L Shaped USB Interconnect Cable


All You Need To Know About The Cayin RU9

Headphone Output
3.5mm (Single-ended)
4.4mm (Balanced)
Input
USB IN
S/PDIF
DAC
Dual AKM AK4493SEQ
Tube
KORG Nutube 6P1
USB Processor
XMOS XU316
Charge Port
USB Type-C (QC3.0/PD2.0)


1 Year Warranty

Don't sweat it, this Cayin - RU9 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.

Elevating Hi-Fi Experiences Since 1993

Founded in 1993, Zhuhai Spark Electronic Equipment Co., Ltd. has been dedicated to perfecting audio equipment under the brand name Cayin. With a commitment to delivering top-notch Hi-Fi products, Cayin embeds cultural richness into its audio range, catering to diverse budgets to make premium music experiences accessible. From tube amplifiers and CD players to speakers, Cayin maintains a consistent benchmark of quality, ensuring a compelling price-to-performance ratio across its offerings.

In 2013, Cayin expanded its horizons into personal audio, unveiling a line of Digital Audio Players (DAP) and desktop audio products. The brand further diversifies its portfolio with portable audio products, including amplifiers and in-ear monitors, empowering users with a broad spectrum of audio choices.

Explore Collection
Cayin does it again. The RU9 redefines portable audio, blending lush, analog-style tube warmth with the velvety refinement of AKM DACs. With the ability to switch between Class A/B and Tube modes, you can tailor the sound to your exact preference. The new reference in portable sound has here.

RAGHAV SOMANI

Have a question? Get in touch!

Check out the most common questions our customers ask. Still have questions? Talk to our Headphone Gurus.

Our customer support is available Monday to Friday: 11am-6pm.Average answer time: 2-3 Hours

Other Details


Generic Name DAC & Amp
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
Manufacturer Details Name: Zhuhai Spark Electronic Equipment Co.,Ltd.
Address: No.9 Lianfa Road Shuanglin Zone Liangang Industrial Park Zhuhai City Guangdong Province China, Postcode: 519045
Package Contents Cayin RU9
Magnetic Leather Case
L Shaped USB Interconnect Cable


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