FiiO K13 R2R DAC & Headphone Amp – 24Bit R2R DAC, 2400mW, LDAC, 10-Band PEQ (Silver)

Discover the FiiO K13 R2R: a desktop DAC and headphone amp that blends advanced digital accuracy with a warm, analog-like timbre.

The K13 R2R is built around a self-developed 24-bit R2R DAC using a four-channel differential architecture. This design, paired with precision resistors and careful drift control, aims to deliver musical detail with a natural sense of space. It’s designed to sit on a real desk, ready to drive a wide range of headphones and source devices without demanding a lab-grade listening room.

Analog-like timbre and flexible listening modes – choose NOS (Non-Oversampling) to preserve the input’s original character, or OS (Oversampling) to upsample up to 384 kHz, which can reveal finer details in certain recordings. The result is a listening experience that can feel both intimate and expansive, depending on the material and your headphones.

• Fully differential 24-bit R2R DAC with four channels for improved channel symmetry.
• NOS mode for a purer, more natural sound and OS mode for upsampling to 384 kHz.
• Supports PCM up to 384 kHz/32-bit and DSD256, enabling a broad range of high-resolution sources.
• Powerful output capable of delivering up to 2400 mW to drive demanding headphones.
• LDAC Bluetooth 5.4 for high‑quality wireless streaming when a cable isn’t convenient.
• 10‑band PEQ with auto EQ and presets to tailor the sound to your preferences or headphones.

Connectivity and real-world versatility

Designed for flexible desktop use, the K13 R2R offers a rich set of outputs and pairing options so you can assemble a clean, centered audio chain without a cluttered rack.

• XLR balanced line out, dual RCA outputs, 4.4 mm balanced, and 6.35 mm single-ended headphone outputs for versatile connections.
• Supports high-resolution PCM and DSD decoding for accurate signal reproduction across formats.
• Bluetooth streaming with LDAC provides a wireless Hi‑Fi option when convenient.
• Dual power supply design for stable performance and reduced noise on the desk.

Control, customization, and practical use

The K13 R2R pairs robust hardware with convenient software tools. You can tune the sound with the 10‑band PEQ using apps and a web interface, save presets, and share profiles with ease. It functions well as a desktop preamp, a high-fidelity DAC, and a headphone amplifier in one compact device.

• Ten adjustable EQ bands with auto EQ options for quick tailoring to headphones or room dynamics.
• App control and a web interface for convenient, on-device sound customization.
• Compact, elegant silver chassis that fits neatly on a typical desk without dominating space.

Whether you’re refining a personal listening setup, streaming high‑res audio from a laptop, or pairing with a high‑impedance headphone collection, the FiiO K13 R2R offers flexible tools and a refined sonic character without promising guaranteed outcomes for every source.