FiiO K11 R2R – True R2R Desktop DAC & Headphone Amplifier

The FiiO K11 R2R brings rich, analog warmth to your desktop with a fully differential resistor-ladder DAC and powerful headphone output. Compact and beautifully built, it offers high-resolution playback, a full-color display, NOS/OS switchable modes, and versatile connectivity for any audiophile setup, available at Soundium.

Key Features

• True 24-bit R2R DAC: Delivers detailed, musical sound with natural tonality and wide soundstage
• NOS/OS Modes: Switch between non-oversampling and oversampling for customized sonic preference
• Powerful Balanced Output: Up to 1.3 W @ 32 Ω for high-impedance headphones and planars
• Full Connectivity: USB-C, coaxial, optical inputs; 6.35 mm single-ended and 4.4 mm balanced outputs
• Customizable Display & RGB Logo: Visual feedback on sample rate, gain, and playback mode
• Three Gain Levels: Optimized performance from sensitive IEMs to power-hungry over-ears

Customer Benefits

Whether you're a music enthusiast or studio user, the FiiO K11 R2R gives you organic, refined sound from a compact and stylish device. Its high output power and tuning flexibility make it suitable for a wide range of headphones and listening preferences.

Quick Specs

• Dimensions: 147 × 133 × 32.3 mm
• Weight: ~420 g
• DAC: Fully differential 24-bit R2R ladder DAC
• Outputs: 1,300 mW (balanced), 660 mW (single-ended) @ 32 Ω
• Sample Rates: USB: up to 384 kHz / DSD256; Optical: 96 kHz; Coaxial: 192 kHz
• Inputs: USB-C, optical, coaxial
• Outputs: RCA line-out, 6.35 mm, 4.4 mm balanced

In the Box

• FiiO K11 R2R
• 12 V power adapter
• USB-C to USB-A cable
• 6.35 mm adapter
• User manual & warranty card

Use Cases / Ideal For

Ideal for desktop listening, high-resolution music playback, headphone enthusiasts, and users who want R2R warmth in a compact, easy-to-use format.

Compatibility

Plug-and-play with Windows, macOS, Linux, and gaming consoles like PS5 and Switch via USB. Works with headphones ranging from 8 to 350 Ω.

Pros & Cons

✅ Pros:

• True R2R sound at an affordable price point
• Great power output for both IEMs and full-size headphones
• Smooth operation with detailed visual feedback

⚠️ Cons:

• No Bluetooth or built-in EQ functionality
• Display text can be small for some setups
• External power supply required (not USB-powered)

FiiO K11 R2R redefines what a desktop DAC/amp can offer at this price. With genuine R2R architecture, powerful outputs, and clean aesthetics, it's the perfect hub for audiophiles who crave musicality and flexibility. Find the K11 R2R at Soundium.