- Inputs: USB-C
- Outputs: Jack 3,5 mm, Jack 6,3 mm
- Headphone Output: Yes
- Power Supply: Battery, USB-C
Cayin RU9 Headphone amplifier
Revolutionary pocket-sized tube magic returns with the Cayin RU9 – the world’s first Korg NuTube 6P1 dongle featuring genuine triode warmth, three distinct timbre modes and up to 1000 mW of pure balanced power.
Dual AK4493SEQ DACs, 32-bit/768 kHz & DSD512, 5th-gen NuTube circuit, selectable Classic Tube / Modern Tube / Solid-State signatures and Hyper DC mode make RU9 the ultimate portable statement of musicality and raw drive.
- Tube: 5th-gen Korg NuTube 6P1 triode (Classic & Modern modes)
- Solid-State Mode: Ultra-clean OPA1662 circuitry
- DAC: Dual mono AKM AK4493SEQ + 16-core XMOS XU316
- Max Power (4.4 mm Hyper DC): 1000 mW @ 32 Ω
- Max Power (4.4 mm BAT): 620 mW @ 32 Ω
- Single-Ended (3.5 mm): Up to 420 mW @ 32 Ω
- Native Support: PCM 32-bit/768 kHz, DSD512
- Outputs: 3.5 mm SE + 4.4 mm balanced (both usable as Line-Out)
- Volume Control: 100-step NJW1195 precision resistor ladder
- Battery: 2000 mAh, up to 4.7 h playtime
- Build: CNC aluminium body, magnetic phone mount, only 150 g
Outputs
- Jack 6,3 mm
- Jack 3,5 mm
Headphone Output: Yes
The headphone output allows direct connection of headphones for private listening. This output provides a convenient way to enjoy the sound without disturbing others or ambient noise.
Battery Operation: Yes
Battery power provides flexibility and mobility. This feature allows you to use the device anywhere, even in places where an electrical outlet is not available. Battery power is ideal for situations that require portability and independence from the grid, whether you're outdoors, on the road, or in a location with limited access to electricity.
Number of Channels: 2
This product has two channels, giving you the flexibility to connect two audio sources at once. This configuration allows you to combine different instruments and effects, enriching your sonic expression and giving you more variability.
Controls
- Menu
- Volume
Тype
DA Converter, Headphone Amp
Number of Channels
2
Number of Outputs
Controls
Volume, Menu
WiFi
DA Conversion
Microphone
Bluetooth
Yes
Supported Formats
LDAC, aptX HD, AAC, SBC
Colour
Frequency Range
Display
Yes
Original Colour by Producer
Grey
Signal to Noise Ratio
118 dB, 104 dB, 114 dB
Inputs
Outputs
Headphone Output
USB
Package Contents
USB-C Cable, Manual
Battery Operation
Battery Type
Integrated, Rechargeable
Power Supply
Battery, USB-C
Charging Time (Hours)
1.3
Play Time (hours)
Height (cm)
10
Width (cm)
7
Depth (cm)
1.5
Weight (g)
150
Made in
China
Documents
Instructions for use
Safety instructions
Please refer to the user manual for the specific safety instructions for this product.