Cayin RU9 – NuTube Portable DAC & Headphone Amplifier

Cayin RU9 – Dual AK4493SEQ NuTube Portable DAC & Headphone Amplifier | Tk 65,000 | 1 Year Official Warranty

The Cayin RU9 is a flagship-grade portable DAC & headphone amplifier that combines the warmth of Korg NuTube 6P1 tube amplification with the precision of modern solid-state audio engineering. Featuring a powerful dual DAC setup, advanced Bluetooth connectivity, and three selectable timbre modes, the RU9 delivers a versatile and immersive Hi-Fi listening experience in a compact portable form.

Now available at HiFi Heaven for Tk 65,000 with 1 year official warranty.

Korg NuTube 6P1 – True Portable Tube Sound

At the core of the RU9 is the advanced 5th-Generation Korg NuTube 6P1 tube technology. Cayin has engineered the RU9 to provide a genuine analog tube sound with:

• Rich and smooth vocals
• Organic midrange presentation
• Natural harmonic texture
• Warm and musical tonality

Enjoy the signature tube flavor in a truly portable DAC/AMP design.

Three Timbre Modes – Tube & Solid-State in One Device

The Cayin RU9 offers three unique sound modes:

• Classic Tube: Warm, lush, and rich tube presentation
• Modern Tube: Cleaner, refined, and slightly brighter tube sound
• Solid-State: Neutral, fast, and highly detailed sound signature

This flexibility allows users to switch sound styles depending on music genre or personal preference.

Dual AK4493SEQ DAC Chips – Pure Hi-Res Audio

The RU9 features a dual AK4493SEQ DAC setup, paired with a 3rd-generation 16-core XMOS XU316 USB processor for ultra-clean digital audio processing.

It supports:

• PCM up to 32-Bit/768kHz
• Native DSD512 decoding
• UAC1.0 & UAC2.0 protocols

Delivering high-resolution playback with excellent clarity and detail retrieval.

Powerful Fully Balanced Amplification

Cayin has equipped the RU9 with a four-channel balanced amplification circuit, capable of driving demanding IEMs and headphones with ease.

With DC Hyper Mode, the RU9 can output up to:

• 1000mW @ 32Ω

Providing strong dynamics, excellent control, and outstanding headroom.

Bluetooth 5.1 with LDAC & AptX HD

For wireless convenience, the RU9 supports:

• Bluetooth 5.1
• LDAC
• AptX HD
• AptX Low Latency
• AAC & SBC

Enjoy high-quality wireless audio with stable low-latency performance.

Premium Build & Magnetic Design

The RU9 features a beautifully crafted CNC-machined aluminum chassis with:

• Lightweight 150g design
• Magnetic rear panel for smartphone attachment
• Included premium magnetic leather case

Its portable yet premium design makes it ideal for daily audiophile use.

Technical Specifications

• DAC Chips: Dual AK4493SEQ
• Tube: Korg NuTube 6P1
• USB Processor: XMOS XU316 (16-Core)
• Bluetooth Version: Bluetooth 5.1
• Bluetooth Codecs: LDAC, AptX HD, AptX LL, AAC, SBC
• Output Ports: 3.5mm Single-Ended + 4.4mm Balanced
• Output Power: Up to 1000mW @ 32Ω (DC Hyper Mode)
• Supported Formats: PCM 32-Bit/768kHz, Native DSD512
• Display: 0.96” OLED
• Weight: 150g
• Body: CNC-Machined Aluminum Alloy

Why Buy Cayin RU9 from HiFi Heaven?

• Genuine Korg NuTube portable amplification
• Three unique timbre sound modes
• Powerful balanced amplification section
• Dual flagship AK4493SEQ DAC setup
• High-definition Bluetooth support
• Premium CNC-machined portable design
• 1 year official warranty
• Available at HiFi Heaven for Tk 60,000

Perfect For

✔ Audiophiles who love tube sound
✔ Users wanting both tube and solid-state modes
✔ High-resolution music playback
✔ Portable flagship DAC/AMP setups
✔ Balanced IEM and headphone users

Tube Magic Meets Modern Hi-Fi

Experience the warmth of analog tubes and the precision of modern DAC technology with the Cayin RU9 Portable DAC & Headphone Amplifier, now available at HiFi Heaven for Tk 60,000 with 1 year official warranty.

Warm tube timbre. Powerful output. Flagship portable sound.